Book reviews

Jana Pospíšilová, Marie Ulrychová

Biologia plantarum 1983, 25:109 | DOI: 10.1007/BF02902118

Book reviews

B. Slavík, J. Velemínský

Biologia plantarum 1983, 25:116 | DOI: 10.1007/BF02902120

Book reviews

J. Krekule, J. Šatava, Helena Zárubová, T. Kalina, B. Slavík

Biologia plantarum 1983, 25:158-160 | DOI: 10.1007/BF02902132

The content of proline and the salt resistance of plants

W. Dreier

Biologia plantarum 1983, 25:81 | DOI: 10.1007/BF02902112

Application of sodium chloride to crop plants in the culture medium leads to an increase in their endogenous content of free proline. There is a certain concentration of sodium chloride above which the proline content of the plants strongly rises (critical point). A relationship between endogenous sodium and proline contents could be found. In salt-sensitive plants (wheat) the critical point lies below that of salt-tolerant plants (barley). The critical concentration is not changed by certain alterations of the culture medium. The determination of the critical point by means of measurement of the proline concentration served as a basis for the analysis...

Verification and utilisation of a preselection test system for the salt tolerance of plants based on the proline content

W. Dreier

Biologia plantarum 1983, 25:88 | DOI: 10.1007/BF02902114

This paper deals with the verification of a test of crop seedlings for the determination of the salt tolerance. There is a typical concentration of NaCl in the culture medium above which an enhancement of the free proline content is induced (critical point, critical concentration). The determination of this critical concentration in 19 cultivars of crop plants has proved that plants grown in aride areas (i.e. Hordeum, Triticum durum) have a critical concentration that is by about 50 to 80 mmol l^-1 of NaCl higher than that of plants grown in more humid regions (i.e. Triticum aestivum). The critical concentration is not influenced...

Acidity induced changes in growth and chemical constituents of potato

Zaib-un-Nisa Abdullah, Rafiq Ahmad

Biologia plantarum 1983, 25:95 | DOI: 10.1007/BF02902115

Foliage and tuber fresh matter and chlorophyll content in cvs. Atom alue, Multa, Kufri, Desiree and Patrones were decreased with the increase in soil acidity. However, tuberization was enhanced at pH 5.5 and decreased significantly at pH 4.5 in all cultivars tested. At pH 4.5 the specific mass of all the cultivars was slightly increased. The highest content of reducing sugars and proteins was found at pH 5.5. No definite pattern was observed in total glycoalkaloids content under different acidic range.

The change in leaf protease and protease inhibitor activities after supplying various chemicals

Tsuneo Watanabe, Noriaki Kondo

Biologia plantarum 1983, 25:100 | DOI: 10.1007/BF02902117

Protease activity inSpinacia oleracea leaves, but not roots, increased when sodium sulfite, hydrogen peroxide and sodium azide, but not sulfuric acid, were injected through the petiole under light conditions. On the other hand, protease inhibitory activity in both the leaves and roots decreased by the injection.
Protease activity inRicinus communis leaves increased when hydrogen peroxide and sodium sulfite were injected through the petiole and kept for 4 h under light conditions. No visible injuries were caused to the leaf. On the other hand, protease inhibitory activity in leaves decreased by the injection of hydrogen peroxide.
Changes...

Peroxidase and IAA-oxidase in crude and partially purified enzyme extracts of growing and differentiating root cells

Dimitrina Klisurska, Atanaska Dencheva

Biologia plantarum 1983, 25:110 | DOI: 10.1007/BF02902119

Crude enzyme extracts from the zones of division, elongation and differentiation of cells of primary maize (Zea mays) root show peroxidase activity but lack IAA-oxidase activity. After partial purification of the extracts by gel filtration on Sephadex G-25, the specific peroxidase activity increases almost twice and a high IAA-oxidase activity appears.
The partial purification of the enzyme extracts does not change the electrophoretic pattern of the peroxidase isoenzymes, but significantly improves the separation and the visualization of isoenzymes with IAA-oxidase activity.
The data obtained were interpreted in connection with the different...

Effect of calcium on water-stress-induced biochemical changes and yield of field-grown rice

B. Nayek, A. K. Biswas, M. A. Choudhuri

Biologia plantarum 1983, 25:117 | DOI: 10.1007/BF02902121

Three different treatments by calcium (10²M), namely seed treatment, foliar spraying and their combination were applied on field-grown rice (Oryza sativa L. cv. Ratna) under both water stressed and non-stressed conditions in the course of plant development. The relative water content and leaf water potential decreased with increase in age of stressed and non-stressed plants. Pretreatment of seeds with Ca improved the water status of the plants most prominently at the vegetative stage but the effect gradually faded away with plant development. The foliar spraying by Ca was more effective in improving the water status of the plants...

Comparative studies on desiccation resistance in leaves ofDactylis glomerata L. andFestuca arundinacea Schreb

Urszula Duda, Alina Kacperska

Biologia plantarum 1983, 25:124 | DOI: 10.1007/BF02902122

Festuca arundinacea Schreb. andDactylis glomerata L., which differ in their ecological requirements toward moisture conditions also express different levels of desiccation tolerance.F. arundinacea was less resistant to severe water stress, showing lower ability to avoid and to tolerate desiccation (according to Levitt's terminology, 1972). Growth stage of the leaves had no influence on the level of water deficits developed under the field conditions. It is concluded that adaptation ofF. arundinacea to growth in well watered environments might be associated with a decrease of desiccation resistance of its tissue.

Glycoprotein of protein bodies fromLupinus luteus L. seeds

Ligia Konopska

Biologia plantarum 1983, 25:129 | DOI: 10.1007/BF02902123

Proteins of protein bodies from lupin cotyledons were subjected to affinity chromatography on a column of Con A-Sepharose. About 42% of them contained sugar component. Globulin fractions soluble and precipitated at pH 4.4 contained 77% and 66% of glycoprotein, respectively.

The modifying effect of the frequency of pulses of ionizing radiation on its efficiency in biological experiments

I. Babůrek, M. Sosna

Biologia plantarum 1983, 25:134-138 | DOI: 10.1007/BF02902125

In biological experiments the ionizing radiation is usually defined by the type, energy and total absorbed dose, as well as by the dose rate. If radiation generated by a physical particle accelerator is employed, we consider it necessary to supplement these data with the value for frequency of pulses of the ionizing radiation jet. As follows from our experiments, this parameter expressively affects the relative biological effect of ionizing radiation.

Calculator-assisted measurements of photosynthetic, respiration and photorespiration rates in a closed gas exchange system

M. Kaše, J. Čatský

Biologia plantarum 1983, 25:139-146 | DOI: 10.1007/BF02902126

A closed gas exchange system has been designed for connection to the Hewlett-Packard programmable calculator controlled data acquisition system to provide a complete process of measuring and control. The system enables routine measurements of photosynthetic and dark respiration rates at different irradiances and different carbon dioxide and oxygen concentrations and leaf temperatures, and also a simple and rapid automatic control of irradiance according to the actual photosynthetic rate.

Moore, T. C.: Research experience in plant physiology

M. Kamínek

Biologia plantarum 1983, 25:87 | DOI: 10.1007/BF02902113

Tanner, W., Loewus, F. A. (ed.): Plant carbohydrates II

J. Luštinec

Biologia plantarum 1983, 25:99 | DOI: 10.1007/BF02902116

Sauer, H. W. (ed.):Progress in developmental biology

J. Krekule

Biologia plantarum 1983, 25:133 | DOI: 10.1007/BF02902124

Frenkiel, F. N., Goodall, D. W., (ed.):Simulation modelling of environmental problems

B. Slavík

Biologia plantarum 1983, 25:146 | DOI: 10.1007/BF02902127

Williams, gnG. (ed.): Elsevier's dictionary of weeds of Western Europe

Jarmila Solárová

Biologia plantarum 1983, 25:154 | DOI: 10.1007/BF02902130

Virus-induced virus inhibitors from systemically virus-infected plants

Christine Wetzler, G. Schuster

Biologia plantarum 1983, 25:147 | DOI: 10.1007/BF02902128

After infection ofNicotiana tabacum cv. Samsun with tobacco mosaic virus (TMV) crude extracts from dark-green spots of upper leaves had a more strongly marked inhibitory effect upon TMV addedin vitro than crude extracts from the surrounding light-green tissue. Likewise, crude extracts from leaves ofNicotiana tabacum cv. Samsun showing recovery after infection with tobacco ringspot virus (TRV) were seen to have a marked inhibitory effect on TMV addedin vitro. The results obtained suggest that virus inhibitors are produced after virus infections not only in hypersensitive hosts but also in systemic hosts. Necrotizing processes...

Changes in isoperoxidases induced by hydroxyphenylacetic acids

Maria C. Mato

Biologia plantarum 1983, 25:151 | DOI: 10.1007/BF02902129

The effects ofo-, m- andp-hydroxyphenylacetic acids on total peroxidase activity and isoperoxidase patterns of wheat coleoptile sections were studied.o-andm-HOPA reduced the total peroxidase activity whilep-HOPA increased it. Electrophoresis in polyacrylamide gel revealed thato- andm-HOPA diminish the intensity of some anodic and cathodic bands, but thatp-HOPA increases anodic and reduces cathodic isoperoxidases. These results may explain the apparently paradoxical positive effects ofp-HOPA on both growth and total peroxidase activity.

Flowering ofin vitro grown spinach shoots in the presence of the Herbicide Sandoz 9789

Ljubinka Ćulafić, R. Konjević, Mirjana Nešković

Biologia plantarum 1983, 25:155 | DOI: 10.1007/BF02902131

Stem tips ofSpinacia oleracea were isolated and grown in sterile culture, with Sandoz 9789 added to the medium. Although the herbicide provoked a complete loss of all chloroplast pigments, developed shoots were able to flower, in response to long days; in short days flowering was inducible by adding gibberellins. Sandoz 9789 decreased the elongation of stems by up to 30%; the percentage of flowering plants in culture was also decreased. However, among those plants that flowered, the majority were male, so that Sandoz 9789 produced a shift of the sex ratio toward maleness.