Book review

J. Luštinec

Biologia plantarum 1983, 25:325 | DOI: 10.1007/BF02878272

Book review

Naďa Avratovscuková

Biologia plantarum 1983, 25:330 | DOI: 10.1007/BF02878274

Book reviews

Jarmila Solárová

Biologia plantarum 1983, 25:335 | DOI: 10.1007/BF02878276

Book review

L. Novotný

Biologia plantarum 1983, 25:360 | DOI: 10.1007/BF02878280

Book Review

T. Gichner

Biologia plantarum 1983, 25:372 | DOI: 10.1007/BF02878283

Book review

Helena Benešová

Biologia plantarum 1983, 25:377 | DOI: 10.1007/BF02878285

Book reviews

J. Čatský, F. Pospíšil

Biologia plantarum 1983, 25:384 | DOI: 10.1007/BF02878287

Book reviews

Danuše Hodáňová, T. Gichner

Biologia plantarum 1983, 25:388 | DOI: 10.1007/BF02878289

Book reviews

Danuše Hodáňová, J. Tupý

Biologia plantarum 1983, 25:397-398 | DOI: 10.1007/BF02878293

Ninety years of Professor Dr. Hitoshi Kihara

M. Sosna

Biologia plantarum 1983, 25:399-400 | DOI: 10.1007/BF02878294

Changes in protein patterns during growth ofVigna unguiculata (L.) WALP. callus tissues

K. K. De, S. C. Roy

Biologia plantarum 1983, 25:321-325 | DOI: 10.1007/BF02878271

Alterations in protein pattern were observed in the callus tissues ofVigna unguiculata (L) Walp. up to tenth passage from its initiation. A gradual increase in quantity of protein was found up to sixth passage of culture. Decrease in the quantity of protein after eight months of culture might be correlated with the cytodifferentiation of the tissues. It has been recorded that with the initiation of morphogenesis there is an increase in the number and intensity of protein bands at the anionic end of the polyacrylamide gel.

Adaptation of beta-ray gauge technique for measurement of water deficit of intact rice leaves

B. C. Saini, T. R. Rathore

Biologia plantarum 1983, 25:326-330 | DOI: 10.1007/BF02878273

A linear relationship was obtained between the logarithm of count rate and absorber's (Aluminum foil and leaf) effective thickness in the range of 4.25 to 18.00 mg cm^-2. Also relative water content (RWC) and absorber effective thickness was linearly related (Y = -89.80 + + 15.84 X, and r = 0.99). From these relationships it was possible to determine the RWC of a rice leaf simply by measuring the radiation intensity of fresh, fully turgid and completely dry leaf by beta ray gauge technique without the added necessity of determining the mass of the leaf.

Diurnal changes in water deficit and recovery patterns of intact rice leaves under natural and controlled environment conditions

B. C. Saini, T. R. Rathore

Biologia plantarum 1983, 25:331-335 | DOI: 10.1007/BF02878275

In the natural monsoon environment, the leaves of Bala and Jaya cultivars experienced more than 10 per cent LWD for about 8 and 6 1/2 h in the diurnal cycle, respectively. The maximum LWD of around 14 per cent occurred between 14.30 to 15.30 at the time of minimum relative humidity (EH) and maximum air temperature (Ta). On the other hand, under controlled environment conditions, LWD values of both the cultivars remained below 10 per cent in the entire diurnal cycle. There was a close relationship between LWD and Ta (r = 0.90 for Bala and 0.91 for Jaya) as well as RH (r = -0.95 for Bala and -0.85 for Jaya). The results suggested that RWC values obtained...

Comparative studies of seed proteins of the genusArtocarpus with respect to lectins

R. de Azevedo Moreira, J. T. A. de Oliveira

Biologia plantarum 1983, 25:336-342 | DOI: 10.1007/BF02878277

Proteins from two species of the genusArtocarpus (A. integrifolia L. andA. incisa L.) were compared by ammonium sulphate fractionation, molecular sieve chromatography and SDS-polyacrylamide gel electrophoresis, with special attention to the lectins. The protein content and hemagglutinating activity were markedly different in the two seeds. The protein pattern obtained by both molecular sieve chromatography and SDS-polyacrylamide gel electrophoresis were quite different. The only similarities found were the elution volume of the lectins in the Sephadex G-100 column and the lectin bands (11 500 and 15 000 daltons) in SDS-polyacrylamide...

Lectins from the genusArtocarpus

E. de Azevedo Moreira, J. T. A. de Oliveira

Biologia plantarum 1983, 25:343-348 | DOI: 10.1007/BF02878278

The lectins from the seeds of two species of the genusArtocarpus (A. integrifolia L. andA. incisa L.) were isolated by affinity chromatography on an AB (+) human stoma column, and compared by physicochemical and immunochemical methods. Although with marked differences in the hemagglutinating activity, the elution pattern of the albummic and globulinic fractions from both seeds were comparable by affinity chromatography on a human-stroma column. The two isolectin families presented many similarities. All the lectins presented the same subunit pattern by SDS-polyacrylamide gel electrpphoresia, were recognised by both rabbit antisera prepared...

Estimation of the nutritional status of cereals by means of boundary nutrient concentration curves

Milena Smetánková, J. Eisler

Biologia plantarum 1983, 25:349-360 | DOI: 10.1007/BF02878279

Data point fields of values of the dependence of nitrogen and potassium concentration in shoot dry matter on dry matter weight in the course of the vegetation cycle at four stages of development of spring barley (Hordeum vulgare L. cv. Ametyst) plants were derived from a four-year-cycle of stationary field nutrition experiments at two localities. Three selection procedures of the boundary data are described. Graphical outputs and their subsequent mathematical expression enable an objective construction of regressive upper and lower boundary curves of the data point fields. The shape of the curves is characteristic of each investigated element....

High altitude acclimatization in fourArtemisia species: Changes in soluble sugars, starch and lignin contents in the leaves

S. Nautiyal

Biologia plantarum 1983, 25:361-365 | DOI: 10.1007/BF02878281

During high altitude acclimatization soluble sugar contents were highest in temperateArtemisia species when grown at 550 m and tropicalArtemisia species at 3600 m in the active growth phase. During the senescence in all the species the soluble sugar contents were low in plants grown at 3600 m.
The starch content was low in the leaves of the tropical and sub-temperate species when grown in the alpine zone but in the temperate species a significantly higher amount of starch was observed at 3600 m altitude.
The amount of lignin acids was lower in the tropical and sub-temperate species but higher in the temperate species when these...

Characterization of phosphate absorption in maize root cortex segments

Ivana Macháčková, J. Král, Z. Zmrhal

Biologia plantarum 1983, 25:366-372 | DOI: 10.1007/BF02878282

Uptake of phosphate ions by 1 mm segments of isolated maize root cortex layers was studied. Cortex segments (from roots of 8 days old maize plants) absorb phosphate ions from 1 mM KH₂PO₄ in 0.2 mM CaSCO₄ at the average rate of 34.3 ±3.2 μg P_i g^-1 (fr. m.) h^-1,i.e. 0.35± 0.02 μmol P_i g^-1 (fr. m.) h^-1. Phosphate uptake considerably increases after a certain period of "augmentation",i.e. washing in aerated 0.2 mM CaSO₄. This increase is completely blocked by the presence of 10 μg ml^-1 cycloheximide.
The...

Oxidation of gallic acid by an enzyme preparation isolated from the culture medium ofNicotiana tabacum cell suspension

F. Pospíšil, Milena Cvikrová, Marie Hrubcová

Biologia plantarum 1983, 25:373-377 | DOI: 10.1007/BF02878284

The oxidation of gallic acid by an enzyme preparation isolated from the culture medium ofNicotiana tabacum cell suspension could be followed by means of fast scan differential pulse polarography (DPP). A product was formed which could be reduced by means of DPP at- 0.47 V (MSE). The nature of the oxidation products is discussed.

Detection of nopaline dehydrogenase and lysopine dehydrogenase activities in crown gall tumors of different plant species

M. Ondŕej

Biologia plantarum 1983, 25:378-384 | DOI: 10.1007/BF02878286

The LpDH and NpDH activities in crown gall tumors incited byAgrobacterium tumefaciens strain C58 were followed in 7 plant species and 100 tumors were assayed in each experimental variant. The NpDH activity was found in 790 out of 800 crown galls observed. The LpDH activity was tested, after induction of tumors withA. tumefaciens strain B6-806 and 37400, in three experimental variants. The LpDH activity was found in 290 out of 300 crown galls. In the small fraction of the LpDH and NpDH negative tumors, the activity was possibly actually present, but it was below the limits of the sensitivity of the detection technique used.

Mycoplasma-Like organisms associated with stunting ofGypsophila paniculata L.

Marie Ulrychová, Eva Petrů, M. Jokeš, Blanka Joštová

Biologia plantarum 1983, 25:385-388 | DOI: 10.1007/BF02878288

A new undescribed yellows-type disease ofGypsophila paniculata L. was found. Since a stunted growth is the predominant symptom the disease has been termed stunting. Electron micrographs of ultrathin sections revealed numerous mycoplasma-like organisms in diseased phloem tissues. Attempts to maintain the diseasedGypsophila plants for further investigation of this disease failed for the present in spite of all applied modifications in nutrient media.

Effect of growth regulators on dormant lenticels ofCedrela toona ROXB.

H. K. Badola, S. P. Paliwal, G. S. Paliwal

Biologia plantarum 1983, 25:389-390 | DOI: 10.1007/BF02878290

Exogenously applied IAA, GA₃ and Niagara (ethyl-hydrogen-1-propyl-phosphonate) activated dormant lenticel meristems of stem cuttings ofCedrela toona Roxb. Maximum activation was achieved by IAA at 0.5 mg ml^-1 concentration.

Differential tolerance ofArabidopsis thaliana crown gall tumors and calli to 5-bromo-2'-deoxyuridine

M. Ondřej

Biologia plantarum 1983, 25:391-393 | DOI: 10.1007/BF02878291

The degree of tolerance of two crown gall tumors and leaf calli ofArabidopsis thaliana to BUdR was compared. The nopaline producing teratoma tumor tolerated BUdR in concentration as high as 2.10^-4 M. The tolerance of octopine producing unorganized crown gall tumor to BUdR was lower, but both exceeded significantly the degree of tolerance to BUdR of untransformedA. thaliana calli, where 10^-5 M BUdR already show some inhibitory effect on the growth rate.

The effect of new male sterilants: Exo-3,4-methano-L-proline and cis-α-(carboxycyclopropyl)glycine on the IAA- and ACC-induced ethylene formation ia wheat coleoptile segments

Ivana Macháčková, Z. Zmrhal

Biologia plantarum 1983, 25:394-396 | DOI: 10.1007/BF02878292

The male sterilants exo-3,4-methano-L-proline (MP) and cis-α-(carboxycyclopropyl)glycine (CCPG) were not converted to ethylene, eitherin vitro or in wheat coleoptile segments. Neither of these substances was able to affect IAA- and ACC-induced ethylene biosynthesis in wheat coleoptile segments to such an extent that it could explain their effect ay male sterilants.