INFLUENCE OF INFECTION BY ERYSIPHE-GRAMINIS DC ON THE SENESCENCE OF THE 1ST LEAF OF BARLEY

被引:8
作者
FINNEY, ME
机构
[1] Plant Pathology Department, Rothamsted Experimental Station, Hertfordshire England
来源
PHYSIOLOGICAL PLANT PATHOLOGY | 1979年 / 14卷 / 01期
关键词
D O I
10.1016/0048-4059(79)90021-3
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The progress of senescence, under different conditions, of the first leaf of barley uninfected and infected with Erysiphe graminis DC. was determined by measurement of chlorophyll, α-amino-nitrogen and protein-nitrogen content. Uninfected leaves excised and kept in the dark showed a rapid loss of chlorophyll and protein-nitrogen coupled with an increase in α-amino-nitrogen content. Infection by E. graminis did not significantly alter this pattern. However, while exposure to light delayed production of ammonia and loss of chlorophyll and protein-nitrogen in uninfected leaves, it did not do so infected leaves. On whole plants senescence of uninfected leaves was brought about by enclosing them in foil envelopes. Chlorophyll and protein-nitrogen loss was demonstrated but no increase in α-amino-nitrogen content occurred. Infection of first leaves on whole plants in the light led to senescence of affected leaves accompanied by an increase in α-amino-nitrogen and a decrease in chlorophyll content while protein-nitrogen content was unaltered. In leaves both infected and enclosed in foil, protein-nitrogen and chlorophyll content decreased while α-amino-nitrogen content increased more rapidly than in the light. © 1979.
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页码:31 / 36
页数:6
相关论文
共 18 条
[1]   INDUCTION OF DISEASE SYMPTOMS IN BARLEY BY POWDERY MILDEW [J].
BUSHNELL, WR ;
ALLEN, PJ .
PLANT PHYSIOLOGY, 1962, 37 (01) :50-&
[2]  
BUSHNELL WR, 1967, DYNAMIC ROLE MOL CON, P21
[3]   PROTEIN METABOLISM IN ROOTED RUNNER-BEAN LEAVES [J].
CHIBNALL, AC .
NEW PHYTOLOGIST, 1954, 53 (01) :31-37
[4]  
FINNEY ME, 1973, THESIS U LONDON
[5]   KININ-INDUCED DIRECTED TRANSPORT AND SENESCENCE IN DETACHED OAT LEAVES [J].
GUNNING, BES ;
BARKLEY, WK .
NATURE, 1963, 199 (489) :262-&
[6]   APPARATUS FOR ISOLATED PROPAGATION OF FOLIAR PATHOGENS AND THEIR HOSTS [J].
JENKYN, JF ;
HIRST, JM ;
KING, G .
ANNALS OF APPLIED BIOLOGY, 1973, 73 (01) :9-&
[7]  
LARGE E. C., 1962, PLANT PATHOL, V11, P47, DOI 10.1111/j.1365-3059.1962.tb00165.x
[8]   ANALYSIS OF EFFECTS OF ERYSIPHE GRAMINIS DC. ON GROWTH OF BARLEY [J].
LAST, FT .
ANNALS OF BOTANY, 1962, 26 (102) :279-&
[9]  
LOWRY OH, 1951, J BIOL CHEM, V193, P265
[10]   KINETIN-INDUCED DIRECTED TRANSPORT OF SUBSTANCES IN EXCISED LEAVES IN THE DARK [J].
MOTHES, K ;
ENGELBRECHT, L .
PHYTOCHEMISTRY, 1961, 1 (01) :58-&