5-FLUORDEOXYURIDINE AND
MITOSIS
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H s v , T. C., HUMI'H]~EY, R. M., SOMERS, C. E.: Response of Chinese h a m s t e r a n d L cells to 2-deoxy-5-fluorouridine a n d thymidine. -- J. nat. Cane. Inst. 32 : 839--855, 1964. KI~mMA~, B. A.: The production of chromatid aberrations b y 5-fluordeoxyuridine alone and in combination with X-rays a n d 8-ethoxycaffeine. -- Caryologia 15 : 261--277, 1962. KIHLMAN, B. A.: Action of Chemicals on Dividing Cells. -- Prentice-Hall, Inc. E n g l e w o o d Cliffs, N e w Yersey 1966. ONDf~Ej, M., Llm~ EN SE: The influence of p r e t r e a t m e n t b y exogenous DNA on the frequencies of aberrations induced b y X-rays in barley. -- Biol. Plant. 18 : 366--372, 1976. SCHWAMM'EI'~'H()FEROVA,K., ONDREJ, M.: Mitotic cycle kinetics of root meristems of isolated barley embryos a n d intact seedlings. Labelling of nuclei b y SH thymidine and its cytogenetie consequences. -- Biol. Plant. 20 : 3 5 1 - 358, 1978. TAYLOR, J. H., HAUT, W. F., TUNG, J.: Effect of fluordeoxyuridine on D N A replication, chromosome breakage a n d reunion. -- Proc. nat. Acad. Sei. USA 48 : 190--198, 1962.
BOOK R E V I E W
SEN, D. N., CHAWAN,D. D., BAIVSAL, R. P. (ed.): ST~UCTUPm, FU~CTm~ AND ECOLOGY OF STOMATA.
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Bishen Singh Mahendra Pal Singh, Dehra D u n (India) 1979. 278 pp. US$ 22.--
Thirteen chapters of this book, written b y prominent authors from eight countries, are divided into three parts. Three chapters of the first p a r t deal with the structure of guard cells, t h e i r walls, chloroplasts, vacuoles, other organelles a n d with substomatal ion-adsorbent bodies (R. A. Stevens a n d E. S. Martin); stomatal ontogeny a n d classification in some dicotyledonous families with special emphasis on taxonomic a n d phylogenetic significance (B. K a n n a b i r a n a n d K. H. K r i s h n a m u r t h y ) and on stomatal features of Acanthaceae, which m a y help in a better understanding of the t a x o n o m y of this large pantropieal family of flowering plants (K. J. Ahmad). P a r t two is devoted to the function of s t o m a t a and contains five chapters. The first deals with the structure of guard cell chloroplasts, their photosynthetic capacity a n d with the hypothetie destiny of carbon dioxide in guard cell metabolism a n d functions (S. Lurie). The second chapter clears up the role of abscisie acid in stomatal regulation of gas exchange in relation to envir o n m e n t a l and internal factors a n d plant development (B. R. Loveys a n d P. E. Kriedemann); the t h i r d chapter reviews the role of distinct groups of growth regulators in stomatal function (R. F. Horton). The next chapter discusses the guard cell metabolism predominantly on the results obtained from model plant material Commelina (F. L. Milthorpe, 1~. Thorpe a n d C. M. Willmer). The last chapter of this section deals with causal interpretations of stomatal response to chemicals, which m a y affect stomatal movements b y altering guard cells m e m b r a n e permeability, K + balance, starch metabolism, glycolate metabolism a n d b y disturbing C02 concentration in plant tissue (M. A. Pemadasa). P a r t three devoted to ecology of s t o m a t a is introduced b y the chapter on the versatile role of s t o m a t a in coordinating p l a n t needs (H. Moldau). The chapter on the effect of changes of a m b i e n t air humidity on stomatal responses a n d their interrelations with other environmental factors (R. LSsch) is followed b y the chapter on pecularities of stomatal regulation in some i m p o r t a n t arid zone plants (D. N. Sen, D. D. Chawan a n d R. P. Bansal). The last b u t one chapter is devoted to differences in response of adaxial s t o m a t a to environmental variables (N. C. Turner). The concluding chapter reviews the present knowledge of circadian r h y t h m s in stomatal movem e n t (E. S. Martin and R. A. Stevens). The volume provides a useful basic account of the topic a n d it is strongly recommended to all who are concerned with stomatal physiology, ecology a n d structure a n d with processes depending on or connected with s t o m a t a actions. JARM.ILA SOI.,~f~ROV~(Praha)