Photosynthetica - Latest articles
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Effects of exogenous glucose and sucrose on photosynthesis in triticale seedlings under salt stress
L.H. WANG, G.L. LI, S. WEI, L. J. LI, S.Y. ZUO, X. LIU, W.R. GU, J. LI
Photosynthetica 2019, 57(1):286-294 | DOI: 10.32615/ps.2019.030
Salinization disturbs metabolic processes of plants and results in reduced growth and productivity. In our study, the Dongnong 8809 variety of triticale (×Triticosecale Wittmack) was evaluated for its physiological responses to salt stress during the seedling stage. We evaluated biomass production, relative chlorophyll content, chlorophyll fluorescence, and leaf gas-exchange parameters. Our results indicated that salt stress greatly reduced matter accumulation, SPAD value, photosynthetic capacity. However, seedlings treated with exogenous sugars showed significantly enhanced matter accumulation, SPAD value, quantum yield of PSII, electron transport...
Diurnal and seasonal variations in the photosynthetic performance and chlorophyll fluorescence of cassava 'Rayong 9' under irrigated and rainfed conditions
K. VONGCHAROEN, S. SANTANOO, P. BANTERNG, S. JOGLOY, N. VORASOOT, P. THEERAKULPISUT
Photosynthetica 2019, 57(1):268-285 | DOI: 10.32615/ps.2019.027
Diurnal photosynthesis responses of cassava cultivar Rayong 9 ('RY9') three months after planting, grown in a field conditions under irrigated and rainfed conditions, were evaluated during the rainy, cool, and hot seasons. Under the mild conditions of the rainy and cool seasons, net photosynthetic rates (PN) increased in parallel with light intensity and attained the maximum at 13.00 or 11.00 h. In the hot season, PN attained the prominent peak at 9.00 h, after which stomatal conductance decreased rapidly coordinated with declining PN and nonphotochemical quenching was enhanced. Photosynthetically...
Allocation pattern, photosynthetic performance and sugar metabolism in hydroponically grown seedlings of loquat (Eriobotrya japonica Lindl.) subjected to salinity
M.-I.N. SOTIRAS, I.E. PAPADAKIS, M. LANDI, G. TSANIKLIDIS, P.I. TSIANTAS, M. PSYCHOYOU
Photosynthetica 2019, 57(1):258-267 | DOI: 10.32615/ps.2019.018
Hydroponically grown loquat seedlings were subjected to increasing NaCl concentrations (0, 12, 24, and 48 mM) for 42 d. At the whole plant level, Na+ and Cl- accumulated proportionally to the salt treatments; however, Na+ accumulated prevalently in leaves whilst Cl- accumulated prevalently in stems. Reduction of leaf biomass was only observed in seedlings grown with 48 mM NaCl, whereas net photosynthesis declined along with increasing NaCl concentration and salinity led to general accumulation of glucose, reduction of mannitol and sorbitol, and changes in pigment composition in loquat leaves. Increasing level...
Interactive effects of temperature and phosphorus nutrition on soybean: leaf photosynthesis, chlorophyll fluorescence, and nutrient efficiency
S.K. SINGH, V.R. REDDY, D.H. FLEISHER, D.J. TIMLIN
Photosynthetica 2019, 57(1):248-257 | DOI: 10.32615/ps.2019.036
An experiment was conducted to assess interactive effects of temperature (22, 26, 30, and 34°C daily mean T) and phosphorus (P) fertilization (sufficient, 0.5 mM, and deficient, 0.08 mM P) on soybean physiological traits. The P deficiency decreased leaf P concentration over approximately 50% across temperature regimes. However, a marked decrease in physiological traits under P deficiency was primarily observed below and at optimum temperature (26°C) but not at warmer temperatures. This resulted in a significant P × T interaction for parameters such as net photosynthetic rate (PN), stomatal conductance, quantum yield of PSII (ΦPSII),...
Genotypic differences in leaf gas exchange and growth responses to deficit irrigation in reticulatus and inodorus melons (Cucumis melo L.)
S.P. SHARMA, D.I. LESKOVAR, K.M. CROSBY
Photosynthetica 2019, 57(1):237-247 | DOI: 10.32615/ps.2019.022
Leaf gas exchange and growth responses of three melon cultivars, i.e., Mission, Da Vinci (var. reticulatus), and Super Nectar (var. inodorus) to two irrigation regimes, 50 and 100% crop evapotranspiration (ETc) were investigated under water-limited conditions of southwest Texas. In 2012, deficit irrigation (50% ETc) significantly decreased above-ground biomass, leaf area, leaf number, and specific leaf area, while leaf gas exchange, relative water content, water potential, chlorophyll fluorescence (Fv/Fm), and chlorophyll content (SPAD index) were not affected. However, in the drier year 2011, deficit irrigation...
Activation state of Rubisco decreases with the nitrogen accumulation during the reproductive stage in soybean [Glycine max (L.) Merr.]
K. SAKODA, S. SUZUKI, H. FUKAYAMA, Y. TANAKA, T. SHIRAIWA
Photosynthetica 2019, 57(1):231-236 | DOI: 10.32615/ps.2019.002
The CO2 assimilation rate, N content, Rubisco activation state, and protein distribution to Rubisco and Rubisco activase in the leaf were analyzed for four soybean genotypes at two growth stages under field conditions. The CO2 assimilation rate was largely constant except for one genotype during the reproductive stage. Rubisco activation state significantly decreased with the increase of N content during this period in three of four genotypes. When standardized by total soluble protein amount, Rubisco activase amount was constant during this period in three genotypes. The results in the present study showed the deactivation of...
Machine learning in determination of water saturation deficit in wheat leaves on basis of Chl a fluorescence parameters
K. RYBKA, M. JANASZEK-MAŃKOWSKA, P. SIEDLARZ, D. MAŃKOWSKI
Photosynthetica 2019, 57(1):226-230 | DOI: 10.32615/ps.2019.017
Water saturation deficit (WSD) is a parameter commonly used for detection of plant tolerance to temporary water shortages. However, this parameter does not meet criteria set for screening. On the other hand, measurement of chlorophyll (Chl) a fluorescence is a fast and high-throughput method. This work presents the application of learning systems to set up a model between WSD and Chl a fluorescence parameters allowed for development of a new screening test. Multilayer perceptron (MLP) was trained to predict WSD values on the basis of Chl a fluorescence. The best MLP consisted of three inputs: maximal quantum yield of PSII photochemistry,...
Morphological, anatomical and physiological traits of Euryodendron excelsum as affected by conservation translocation (augmentation vs. conservation introduction) in South China
H. REN, H.L. YI, Q.M. ZHANG, J. WANG, X.Y. WEN, Q.F. GUO, H. LIU
Photosynthetica 2019, 57(1):217-225 | DOI: 10.32615/ps.2019.024
Euryodendron excelsum is a rare and endangered evergreen tree in South China. We conducted two experimental translocations (augmentation and conservation introduction) on this species and assessed morphological, anatomical and physiological traits of leaves after translocation. The introduction plants showed smaller specific leaf area, less developed palisade tissues, smaller palisade/spongy tissue ratio, stomata density and anthocyanin content, lower values of maximal quantum yield of PSII photochemistry, photochemical quenching coefficient, net photosynthetic rate, light-saturated net photosynthetic rate, light-saturation point, but higher light-compensation...
Phytotoxic effect of silver nanoparticles in Triticum aestivum: Improper regulation of photosystem I activity as the reason for oxidative damage in the chloroplast
A. RASTOGI, M. ZIVCAK, D.K. TRIPATHI, S. YADAV, H.M. KALAJI
Photosynthetica 2019, 57(1):209-216 | DOI: 10.32615/ps.2019.019
Silver nanoparticles (AgNPs) are used in several industries and their continuous release into environment can damage the ecosystem. Our study observed the impact of two concentrations of AgNPs (1 and 5 mM) on wheat seedlings. In this study, the treatment of AgNPs was found to have a significant impact on growth parameters, such as root and shoot length of wheat seedlings, in addition to that biochemical parameters, such as activity of catalase, glutathione, flavonoid, and chlorophyll concentrations, were also affected. AgNPs apparently suppressed the photosynthetic activity of the seedlings, with a clear destruction of photosystems at 5 mM concentration....
Leaf rolling as indicator of water stress in Cistus incanus from different provenances
G. PUGLIELLI, L. GRATANI, L. VARONE
Photosynthetica 2019, 57(1):202-208 | DOI: 10.32615/ps.2019.014
Leaf movements such as leaf rolling affect plant physiological performance by reducing light capture. The relationship between leaf rolling and physiological traits under imposed water stress conditions was analyzed in two population of Cistus incanus. We tested the hypothesis that leaf rolling reflected physiological changes occurring during water stress irrespective of the different acclimation in order to cope with water stress. On the whole, our results confirmed our hypothesis since leaf rolling significantly reflected physiological activity changes. Moreover, leaf rolling might be involved in protecting the PSII complex under water...
Changes in foliar epicuticular wax and photosynthesis metabolism in evergreen woody species under different soil water availability
S. PEREIRA, K. FIGUEIREDO-LIMA, A.F. M. OLIVEIRA, M.G. SANTOS
Photosynthetica 2019, 57(1):192-201 | DOI: 10.32615/ps.2019.013
Epicuticular waxes (EW) are important for plant physiology as a protective barrier against water loss. Thus, the main goal of this study was to evaluate the ecophysiological performance of Cynophalla flexuosa, an evergreen woody species, under different foliar EW contents. The study was conducted during three periods throughout the year in a seasonally dry tropical forest area. The xylem water potential decreased to 70% at midday. The main EW components were n-alkane chains, effective in keeping the cuticle impermeability. We analyzed intact leaves and leaves with EW removed. C. flexuosa did not alter its photosynthetic...
Brassinosteroids increase electron transport and photosynthesis in soybean plants under water deficit
Y.C. PEREIRA, W.S. RODRIGUES, E.J.A. LIMA, L.R. SANTOS, M.H.L. SILVA, A.K.S. LOBATO
Photosynthetica 2019, 57(1):181-191 | DOI: 10.32615/ps.2019.029
Drought frequently results in significant losses in agricultural systems, including the soybean yield. Brassinosteroids exhibit multiple actions on essential processes, including chlorophyll fluorescence and gas exchange. Considering that the electron transport rate (ETR) into photosystems can exercise interference on net photosynthetic rate (PN), this research aims to determine whether 24-epibrassinolide (EBR) affects electron transport and find out if there is any repercussion on photosynthesis in soybean plants affected by the water deficit. The experiment was performed using a randomized factorial design, with two water conditions...
Chlorophyll fluorescence and initial growth of two liana species, Cuspidaria sceptrum (Cham.) L.G. Lohmann and Fridericia florida (DC) L.G. Lohmann, under changes of natural light conditions
S.M. PAULA, M.A. BOSELLI, M.C. SANCHES
Photosynthetica 2019, 57(1):170-180 | DOI: 10.32615/ps.2019.004
The physiological alterations as well as the growth were evaluated in seedlings of two liana species, Cuspidaria sceptrum and Fridericia florida, which were transferred from shade to full sunlight conditions. We cultivated one group of seedlings under full sunlight, the second group under natural shade beneath canopy, and the third group was transferred from shade to full sunlight. Reductions on the potential quantum yield of PSII (Fv/Fm) during predawn was detected under full sunlight, but these responses were more pronounced when the plants were transferred from shade to full sunlight. C. cuspidaria...
Different response of photosynthetic apparatus to high-light stress in sporotrophophyll and nest leaves of Platycerium bifurcatum
J. OLIWA, A. SKOCZOWSKI
Photosynthetica 2019, 57(1):147-159 | DOI: 10.32615/ps.2019.037
Tropical forest deforestation leads to sudden changes in light conditions, which is a problem for the development of epiphytes, such as Platycerium bifurcatum. High light (HL) results in disturbances of the light phase of photosynthesis and changes in leaf pigment composition. The current study determined differences in fast chlorophyll fluorescence transients and changes in radiation reflectance in sporotrophophylls and nest leaves after one and seven days of HL. In addition, a spectral range was identified with the largest change in reflectance induced by HL. Sporotrophophylls exhibited a stronger response of the photosynthetic apparatus...
Photosynthesis and biomass accumulation in Carapa surinamensis (Meliaceae) in response to water stress at ambient and elevated CO2
M.F. OLIVEIRA, R.A. MARENCO
Photosynthetica 2019, 57(1):137-146 | DOI: 10.32615/ps.2019.023
Climate models predict an increase in atmospheric CO2 concentration and prolonged droughts in some parts of the Amazon, but the effect of elevated CO2 is still unknown. Two experiments (ambient CO2 ‒ 400 ppm and elevated CO2 ‒ 700 ppm) were conducted to assess the effect of drought (soil at 50% field capacity) on physiological parameters of Carapa. At ambient CO2 concentration, light-saturated net photosynthetic rate (PNsat) was reduced by 33.5% and stomatal conductance (gs) by 46.4% under drought, but the effect of drought on PNsat...
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Estimation of changes in the activity of photosynthetic apparatus of plant leaves based on half-time of fluorescence intensity decrease
T.V. NESTERENKO, V.N. SHIKHOV, A.A. TIKHOMIROV
Photosynthetica 2019, 57(1):132-136 | DOI: 10.32615/ps.2019.005
The range of variations in parameter τ0.5 - half-time of fluorescence intensity decrease during the slow phase of chlorophyll fluorescence induction (CFI) - has been studied during ontogeny of leaves of monocotyledonous and dicotyledonous plants in plant communities of different structures. Plants were grown hydroponically on expanded clay aggregate in growth chambers, under PPFD of 400 μmol(photon) m-2 s-1, under controlled conditions. Analysis of the literature data and results of experimental observations of τ0.5 behavior compared to other CFI parameters, nonphotochemical quenching coefficient,...
Osmotic adjustment, stomata morphology and function show contrasting responses to water stress in mesic and hydric grasses under elevated CO2 concentration
S.W. MWENDIA, I.A.M. YUNUSA, B.M. SINDEL, R.D.B. WHALLEY, J.J. BRUHL
Photosynthetica 2019, 57(1):121-131 | DOI: 10.32615/ps.2019.016
The physiological response of two species of grasses with C3 and C4 mechanisms syndromes, Napier grass (Pennisetum purpureum Schumach × Pennisetum glaucum (L.) R. Br) and hydric common reed grass (Phragmites australis (Cav.) Trin. Ex Steud) was examined under ambient (aCO2) and elevated CO2 (eCO2), in combination with water and temperature stress treatments. Under eCO2 and subjected to water and temperature stress, the Napier grass maintained higher daytime leaf water potential (LWP) by reducing transpiration (E) and executing larger osmotic adjustment (OA)...
Coordinated changes in photosynthetic machinery performance and water relations of the xerophytic shrub Ziziphus lotus (L.) Lam. (Rhamnaceae) following soil drying
M. MARAGHNI, M. GORAI, K. STEPPE, M. NEFFATI, M.C. VAN LABEKE
Photosynthetica 2019, 57(1):113-120 | DOI: 10.32615/ps.2019.025
Aim of this study was to investigate the effect of water shortage in wild jujube plants, Ziziphus lotus (L.) Lam, and how it is related to its ecological success. All leaf anatomical traits were significantly affected following soil drying. Stressed plants displayed more negative stem water potential (ψw) and osmotic potential values of ca. -3.5 and -4.5 MPa, respectively, after 30 d. The relative water content declined although it still maintained high values (≥ 75%). The net photosynthetic rate, stomatal conductance, and transpiration rate were significantly inhibited as ψw decreased. However, the...
Photosynthesis and growth kinetics of Chlorella vulgaris R-117 cultured in an internally LED‑illuminated photobioreactor
J.R. MALAPASCUA, K. RANGLOVÁ, J. MASOJÍDEK
Photosynthetica 2019, 57(1):103-112 | DOI: 10.32615/ps.2019.031
The aim of this work was to correlate changes of photosynthesis activity vs. growth in Chlorella vulgaris R-117 (CCALA 1107), fast-growing and robust microalga cultured in an internally illuminated 10-L photobioreactor (PBR). The cultures were grown at high output irradiance provided by four LED light sources submerged in the culture when the light path was short, between 25-30 mm. The culture of Chlorella R-117 grown under 2,500 µmol(photon) m-2 s-1 attained a doubling time of 3.5 d and biomass density of 3.5 g(DM) L-1 after about 10-d period. When grown under 3,500 µmol(photon) m-2...
Tolerance to photoinhibition within lichen species is higher in melanised thalli
T.C. MAFOLE, K.A. SOLHAUG, F.V. MINIBAYEVA, R.P. BECKETT
Photosynthetica 2019, 57(1):96-102 | DOI: 10.32615/ps.2019.008
Some lichenized ascomycetes synthesize melanic pigments when exposed to ultraviolet light and high solar radiation. Here, we used chlorophyll fluorescence in order to test the effect of melanisation on the ability of the lichens Cetraria islandica, Lobaria pulmonaria, Peltigera aphthosa, P. membranacea, Pseudocyphellaria gilva, and Sticta sublimbata to tolerate high-light stress. For each species, melanised and pale thalli were selected from relatively exposed and shaded individuals of the same population. For all species, melanised thalli displayed significantly less photoinhibition than pale thalli following...
Role of arbuscular mycorrhiza in alleviating the effect of cold on the photosynthesis of cucumber seedlings
J. MA, M. JANOUŠKOVÁ, L. YE, L.Q. BAI, R.R. DONG, Y. YAN, X.C. YU, Z.R. ZOU, Y.S. LI, C.X. HE
Photosynthetica 2019, 57(1):86-95 | DOI: 10.32615/ps.2019.001
Arbuscular mycorrhiza (AM) is known to enhance the rate of photosynthesis in plants, but there is little information on whether this effect is maintained at low temperature when the development of AM fungi is restrained. We therefore investigated the influence of AM on gas exchange, PSII fluorescence, and some photosynthesis-related biochemical parameters in cucumber seedlings under cold stress. Cold stress decreased, as expected, the chlorophyll content, net photosynthetic rate, and parameters related to photochemical quenching, while increasing nonphotochemical quenching and sugar contents in leaves. In contrast, AM had opposite effects on most of...
Leaf photosynthesis of three typical plant species affected by the subsidence cracks of coal mining: a case study in the semiarid region of Western China
Y. LIU, S.G. LEI, L.S. CHENG, W. CHENG, J.B. XIONG, Z.F. BIAN
Photosynthetica 2019, 57(1):75-85 | DOI: 10.32615/ps.2019.020
Increased attention has been paid to effects of coal mining subsidence on the growth of plants. Studying the changes of plants photosynthetic physiology under the disturbance of coal mining subsidence is the basis for understanding dynamic exchanges of plant energy and water at that mining area. The 52302 working face of the Shendong mining area was selected as the experimental site, with Artemisia ordosica, Caragana korshinskii, and Populus spp. as the research targets. Changes in leaf photosynthesis were monitored in plants at a subsidence crack area. We showed collapse cracks decreased soil moisture and caused drought stress....
Photosystem photochemistry, prompt and delayed fluorescence, photosynthetic responses and electron flow in tobacco under drought and salt stress
K. KHATRI, M.S. RATHORE
Photosynthetica 2019, 57(1):61-74 | DOI: 10.32615/ps.2019.028
The present study aimed to understand the photosynthetic responses and chlorophyll fluorescence transient in tobacco under drought and salt stress. Net CO2 assimilation rate, stomatal conductance, intercellular CO2 concentration and transpiration rate decreased significantly under drought and salt stress. The maximum quantum efficiency of PSII and electron transport rate were lower in tobacco under drought and salt stress. The maximum carboxylation rate, maximum electron transport rate, triosephosphate utilization efficiency, and mesophyll conductance decreased under drought and salt stress, while dark respiration increased. A...
Characterization of Oryza nivara introgression lines: A potential prebreeding resource to improve net photosynthetic rate in elite cultivars of rice
G. HARITHA, T. VISHNUKIRAN, Y. VENKATESWARA RAO, CH. GOWTHAMI, B. DIVYA, N. SARLA, D. SUBRAHMANYAM
Photosynthetica 2019, 57(1):47-60 | DOI: 10.32615/ps.2019.003
Photosynthesis is one of the fundamental processes influencing crop growth and productivity. In order to understand better the basis of variation in net photosynthetic rate (PN) and yield potential in rice, two backcross populations derived from Swarna × O. nivara were studied. Gas exchange and chlorophyll fluorescence measurements were taken at flowering stage and data on yield traits at harvest. PN was significantly correlated with stomatal conductance, transpiration rate, mesophyll conductance, carboxylation efficiency, yield per plant (YLDP), and dry mass in both populations. Ten introgression lines (ILs)...
Diurnal changes in the delayed fluorescence response of an ambient light-excited green alga
W. ECKERT, F. LEUNERT, Y.Z. YACOBI, J. KÖHLER, E. KURZBAUM
Photosynthetica 2019, 57(1):40-46 | DOI: 10.32615/ps.2019.012
Delayed fluorescence (DF) is a characteristic feature of light-excited plant cells caused by the back-reaction of electrons through the electron transport chain. Targeting the response of light-adapted green algae to diurnal light changes, the present study presents novel results of DF measurements in the absence of an artificial excitation light source. Based on a linear relationship between the DF counts and light intensities from 0.15 to 0.65 W m-2 during daybreak, we estimated an initial algal response to light intensities of 0.01 W m-2. Dissolved oxygen concentrations began to increase at 1.0 W m-2. A noon depression...
Effect of soil salinity on growth, metal distribution and photosynthetic performance of two Lycium species
V.L. DIMITROVA, M.M. PAUNOV, V. GOLTSEV, M.P. GENEVA, Y.K. MARKOVSKA
Photosynthetica 2019, 57(1):32-39 | DOI: 10.32615/ps.2019.006
The effect of salinity on gas exchange and fluorescence characteristics in Lycium barbarum and Lycium chinense grown on nonsaline and saline soils was investigated. The distribution of Na+ between three types of substrates and different organs showed acropetal concentration gradient for Na+ accumulation only in L. barbarum grown on peat-moss-perlite and saline soil. Selective uptake of K+ over Na+ in the L. barbarum leaves was established. All plants grown on saline soil showed a slight inhibition of PSII activity as revealed by the quantum yield of the primary...
Effects of lanthanum on the antioxidant capacity of chloroplasts and chlorophyll fluorescence parameters of maize seedlings under chromium stress
H. DAI, C. SHAN
Photosynthetica 2019, 57(1):27-31 | DOI: 10.32615/ps.2019.015
Effects of lanthanum chloride (LaCl3) on chromium tolerance of maize were investigated at chloroplast level. The results showed that Cr stress significantly increased activities of ascorbate peroxidase, glutathione reductase, monodehydro-ascorbate reductase, dehydroascorbate reductase, superoxide dismutase, and glutathione peroxidase, nonphotochemical quenching, malondialdehyde (MDA) and hydrogen peroxide contents, but significantly reduced the ratios of reduced ascorbate to dehydroascorbate and reduced glutathione to oxidized glutathione, the contents of chlorophyll and carotenoids, maximum photochemical efficiency of PSII, photochemical...
Leaf nitrogen supply improves sugarcane photosynthesis under low temperature
G. CERQUEIRA, M.C. SANTOS, P.E.R. MARCHIORI, N.M. SILVEIRA, E.C. MACHADO, R.V. RIBEIRO
Photosynthetica 2019, 57(1):18-26 | DOI: 10.32615/ps.2019.033
This study aimed to test the hypothesis that increases in leaf nitrogen concentration would reduce the sensitivity of sugarcane photosynthesis to low temperature. IACSP95-5000 plants were grown inside a growth chamber at 30/20oC (day/night) and we evaluated the effects of leaf nitrogen spraying (2.5% urea) on plants facing low temperature (22/12°C) for eight days. The leaf nitrogen supply increased leaf nitrogen concentration and plants exhibited higher leaf gas exchange as compared to nonsprayed ones. We also found higher activity of the carboxylation enzymes, Rubisco and phosphoenolpyruvate carboxylase, as well as a higher chlorophyll...
Photosynthetic and yield performance of wild barley (Hordeum vulgare ssp. spontaneum) under terminal heat stress
F. BAHRAMI, A. ARZANI, M. RAHIMMALEK
Photosynthetica 2019, 57(1):9-17 | DOI: 10.32615/ps.2019.009
Terminal heat stress is one of the major constraints of cereal production. A two-year field investigation was performed to assess the response of Hordeum vulgare ssp. spontaneum genotypes to terminal heat stress using gas-exchange parameters, photosystem efficiency, proline accumulation, cell membrane leakage, and grain yield traits. Results of analysis of variance revealed the significant effects of heat stress (E), genotype (G), and G × E on the studied traits. The results of linear regression analysis showed that yield loss was inversely correlated with the maximum quantum yield of PSII photochemistry (Fv/Fm)...
Smoke compounds aggravate stress inflicted on Brassica seedlings by unfavourable soil conditions
R. BĄCZEK-KWINTA, J. ANTONKIEWICZ, A. ŁOPATA-STASIAK, W. KĘPKA
Photosynthetica 2019, 57(1):1-8 | DOI: 10.32615/ps.2019.026
The aim of the study was to assess the physiological status of Brassica seedlings grown in two types of soils following a single application of smoke water (SW). One soil was contaminated with heavy metals from a local smelter, and another was sandy and poor in nutrients. Three-week monitoring indicated that soil composition was the primary factor affecting chlorophyll fluorescence (CF) parameters, growth, and development of seedlings, and the contaminants affected the plants more than the lack of nutrients. SW aggravated the negative impact of heavy metals, which became visible when the plants transiently suffered from the heavy metal exposure....