Book reviews

T. Gichner, Danuše Hodáňová

Biologia plantarum 22:383, 1980 | DOI: 10.1007/BF02908988

Book reviews

Z. Šesták, V. Našinec, V. Škrdleta, J. Krekule, T. Herben

Biologia plantarum 22:396-398, 1980 | DOI: 10.1007/BF02908993

The action of arginine, asparagine and atebrine stereomers upon the left and rightLemna minor plants

V. B. Kasinov

Biologia plantarum 22:321-326, 1980 | DOI: 10.1007/BF02908974

Genetically identical mirror-imaged left and rightLemna minor plants were treated using the stereomers of arginine, asparagine and atebrine (mepacrine). In contrast with the stereomers of arginine and asparagine, those of atebrine were found to be isoeffective throughout the dosage range from the ineffective dose to the lethal one. All indices used (rate of reproduction, length of a frond and sensitivity to the treatments) pointed to the absence of any difference between left and right plants. The left or right handedness inLemna cannot be explained bv assuming the existence of any stereochemical difference between left and right plants.

Differential specificity in water imbibition of indian arid zone seeds

R. P. Bansal, P. R. Bhati, D. N. Sen

Biologia plantarum 22:327-331, 1980 | DOI: 10.1007/BF02908976

Studies on seeds of 40 arid zone plant species have revealed that seeds exhibit differential specificity in water inhibition percentage. Most of these seeds show very poor imbibition capacity and that takes place within the first three hours, after which this uptake becomes very slow. This low hydrature and quick water uptake wherever it takes place is correlated with the erratic rainfall in the Indian arid zone. Most of the leguminous seeds are impermeable to water because of hard seed coatedness. However, those seeds which imbibed showed a very high percentage of water uptake.

Influence of chlorocholinechloride and ethrel on chlorophyll content and the "epinastic response" of the primary leaf of wheat seedlings

H. Göring, Svetlana Koshuchowa

Biologia plantarum 22:332, 1980 | DOI: 10.1007/BF02908977

Wheat seedlings were cultivated in nutrient solutions containing 10^-3 M CCC, 10^-3 M CEPA or 5 × 10^-4 M CCO and CEPA, respectively. CCC applied alone or mixed with CEPA increased chlorophyll content per unit fresh matter but had no influence on the epinastio response of the primary leaf. In contrast, CEPA had no influence on chlorophyll content but greatly increased the epinastic response. The different response to the application of these substances with regard to chlorophyll content ha been claimed in a previous paper to be due to their different effect on cell extension and cell division. The epinastic response of...

Study of xylem pressure potential daily dynamics by means of autocorrelation analysis

J. Huzulák, F. Matejka

Biologia plantarum 22:336-340, 1980 | DOI: 10.1007/BF02908978

The xylem pressure potential (Ψ_xylem) of the leaves ofQuercus cerris, Acer campestre andCarpinus betulus was measured under anticyclonic weather types. The autocorrelation analysis revealed the daily course of the Ψ_xylem values approaching the stationary random process. A close statistical relation was found between the results obtained in three successive measurements of the Ψ_xylem (interval 2 h). A close statistical relation also between the value of the base potential (Ψ_b) measured at dawn and the actual values of the Ψ_xylem allowed the prediction of the Ψ_xylem...

Host range and symptom differences between isolates of turnip mosaic virus obtained fromSisymbrium loeselii

Zdeňka Procházková

Biologia plantarum 22:341, 1980 | DOI: 10.1007/BF02908979

Twenty-four isolates of turnip mosaic virus (TuMV) from spontaneously infectedSisymbriutn loeselii plants were collected in Bohemian localities. Single lesions on leaves ofNicotiana tabacum cv. Samsun served for inoculating petunia plants used as infection sources for twelve host species. In no case were two identical isolates obtained. 15 isolates could be transmitted toVicia faba, a new TuMV host. Almost all isolates infectedPhaseolus vulgaris cv. Prince locally andTrifolium incarnatum systemically. Seven isolates were transmissible toPisum sativum. No substantial differences between isolates were observed...

Effect of different concentrations of 5-fluordeoxyuridine on mitosis and chromosomes of barley root meristems

M. Ondřej

Biologia plantarum 22:348, 1980 | DOI: 10.1007/BF02908980

Excised barley embryos were cultivated in a liquid complete medium for 48 h and then 5-fluordeoxyuridine was added. The concentrations of 5-fluordeoxyuridine differed in the range of 6 orders of magnitude (10^-8 to 10^-3 M). All concentrations, except 10^-8 M led to a total inhibition of mitosis during 24 h. 5-fluordeoxyuridine induced chromosomal aberrations of the non-exchange type in all concentrations used. The frequencies of induced breaks increased during the interval of 12 h in whích they were followed and, in samples fixed at later intervals after the beginning of the treatment, there was a tendency to clustering...

Detection of beet yellows virus in sugar beet leaves and roots by enzyme-linked immunosorbent assay (ELISA)

J. Polák, Ildikó Barna-Vetró, Béa György, Věra Zindulková

Biologia plantarum 22:354, 1980 | DOI: 10.1007/BF02908982

Using the enzyme-linked immunosorbent assay (ELISA) beet yellows virus (BYV) could be detected reliably in the leaves of sugar beet andTetragonia expansa Pall. and in the roots of sugar beet. Specifio γ-globulin of BYV antiserum was coupled to horse radish peroxidase by periodate oxidation. Optimum dilutions of antigen (extract from infected leaves) were1: 50 to 1: 200 for BYV detection in sugar beet andT. expansa leaves and1: 2 to 1: 5 for detection in sugar beet roots. Extracts from beet roots are not to be purified by ultracentrifugation, however, by the described method virus can be demonstrated only in 80-90%...

Contribution to the problem of mycoplasma-like organism transmigration in plants

Marie Ulrychová, Eva Petrů

Biologia plantarum 22:358, 1980 | DOI: 10.1007/BF02908984

Anatomical-histological investigations of slide series revealed that the secondary vascular formations appearing scattered in callus tissue culture derived from a stem piece containing mycoplasma-like organisms (MLO) (potato witches' broom agent) have no connection with the vascular tissues of the original stem piece. 77% of reconstituted tobacco plants (Nicotiana glauca Grah.) from these callus cultures were infected with MLO. When diseasedNicotiana glauca scions are grafted on healthy tomato plants as stocks, MLO transmigration into the stocks is realized in all cases ten days after grafting; at that time, the scions and stocks are...

Mycoplasma-like organisms inLupinus hybrids showing witches' broom symptoms

Marie Ulrychová, M. Jokeš, Jana Kynčlová

Biologia plantarum 22:363-365, 1980 | DOI: 10.1007/BF02908985

A previously undescribed disease onLupinus hybrids manifesting typical witches broom symptoms occurred spontaneously in a locality in North Bohemia. Broomed shoots appeared only in late summer and resulted from the abnormal proliferation of dormant axillary buds in leaf and fruit axils. The shoots were bushy and their leaves were dark green and not reduced in size. Electron micrographs of ultrathin sections showed the presence of numerous mycoplasma-like organisms (MLO) in diseased but not healthy phloem tissues.

Computer aided evaluation of differences in host reactions between isolates of turnip mosaic virus fromSisymbrium loeselii

J. Brčák, J. Brčák

Biologia plantarum 22:366-373, 1980 | DOI: 10.1007/BF02908986

Twenty three isolates of turnip mosaic virus (TuMV) obtained from spontaneously infected plants ofSiaymbrivm loeaelii JUSL. were serologically related, but differed in reactions of eleven host plants. Susceptibility and sensitivity of each host for each TuMV isolate were classified by one of six degrees (0 to 5) respectively. Similarities of isolates (as compared in 253 pairs) were evaluated by means of a computer; for this purpose the source program MINDIF has been elaborated using the universal program language Algol 60. A table of differences between isolates was obtained and distribution of isolate pairs dependent upon the difference values...

The changes in the growth pattern of organs ofChenopodium rubrum photoperiodically induced to flowering

J. Ullmann, Jana Opatrná, J. Krekule, Libuše Pavlová

Biologia plantarum 22:374, 1980 | DOI: 10.1007/BF02908987

The relationship between photoperiodically changed growth of leaves, cotyledons, hypocotyl, roots and flowering has been investigated inChenopodium rubrum. It was found that all the growth characteristics recorded in leaves and cotyledons,i.e. length, area, dry weight and chlorophyll content, were inhibited during three inductive photoperiods (16 h darkness, 8 h light-SD) as compared with control plants grown under continuous illumination. Similarly, the cessation of root elongation and a decrease in root dry weight were observed. On the contrary, the elongation and dry weight of hypocotyl are stimulated by SD. The degree of the effect...

Changes in isoenzymes of soluble malate dehydrogenase during germination of mung bean (Phaseolus aureus Roxb.) under salt stress

I. S. Sheoean, O. P. Garg

Biologia plantarum 22:384, 1980 | DOI: 10.1007/BF02908989

Seeds of mung bean (Phaseolus aureus Roxb.) cv. Pusa Baisakhi were surface sterilized and sown both in Petri dishes and sand culture containing aqueous solutions of four different saltsviz. NaCl, KC1, Na₂SO₄ and K₂SO₄ each at 5 and 10 m ώ^-1 cm^-1. Malate dehydrogenase (MDH) isoenzymes were studied in different plant parts of mung bean at suitable intervals during germination under four different salts. In cotyledons, 96 h after sowing only one isoenzyme was left in control as compared to three under salt treatment. In the embryo axis, 96 h after sowing, sulphate salts...

Effect of different seed moisture levels on the germination behaviour ofPhaseolus trilobus Ait

R. Sankhla, D. D. Chawan

Biologia plantarum 22:388, 1980 | DOI: 10.1007/BF02908990

Germination inPhaseolus trilobus is controlled by different moisture levels of seeds. The hard seed coatedness which develops secondarily can be removed by pretreatment with oonc. H₂SO₄. This also enhanced the onset of seed germination.

Bud breaking and adventitious root formation inPanicum maximum Jacq

G. M. Felippe

Biologia plantarum 22:392, 1980 | DOI: 10.1007/BF02908992

When stem cuttings were put in water the dormancy of the bud was broken. No inhibitory substances could be found in the leaves and no effect of exogenous growth substances could be detected. Dormancy of buds in the present case seems to be the result of the mechanical resistance imposed by the leaf sheath upon the bud.Gibberellic acid was very effective in promoting root formation in the woody stem cutting ofPanicum maximum and the present results point to a direct effect on root initiation by gibberellic acid.

Professor RNDr et PhMr Vladimir Rypáček DrSc, corresponding member of the Czechoslovak academy of sciences- his 70th birthday

Z. Laštůvka

Biologia plantarum 22:399-400, 1980 | DOI: 10.1007/BF02908994

Ellenberg, H., Esser, K., Kubitzki, K., Schnepf, E., Ziegler, H. (ed.): Fortschritte der botanik

Ingrid Tichá

Biologia plantarum 22:326, 1980 | DOI: 10.1007/BF02908975

Sen, D. N., Chawan, D. D., Bansal, R. P. (ed.): Structure, function and ecology of stomata

Jarmila Solárová

Biologia plantarum 22:353, 1980 | DOI: 10.1007/BF02908981

Moore, T. C.,: Biochemistry and physiology of plant hormones

J. Luštinec

Biologia plantarum 22:357, 1980 | DOI: 10.1007/BF02908983

Smith, K. C. (ed.):Photochemical and photoobiological reviews. Volume 5

Z. Šesták

Biologia plantarum 22:391, 1980 | DOI: 10.1007/BF02908991