Critical yield-point model to estimate damage caused by brown spot and powdery mildew in barley
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چکیده
منابع مشابه
Abnormal germling development by brown rust and powdery mildew on cer barley mutants.
The barley leaf rust fungus forms appressoria over host leaf stomata and penetrates via the stomatal pore. High levels of avoidance to leaf rust fungi have been described in some wild accessions of Hordeum species where a prominent wax layer on the stomata inhibits triggering of fungal appressorium differentiation. Leaf rust avoidance has not yet been found in H. vulgare. Since cuticular leaf w...
متن کاملInduction of Disease Symptoms in Barley by Powdery Mildew.
Powdery millews usually grow superficially on their hosts but produce symptoms of disease throughout the underlying host tissues. The symptoms include marked increase in respiratory rate (1, 3, 15. 24, 26, 30. 35); accumulation of organic and inorganic substances (1,29, 36): increase in dry weight (10. 26) ; increase in wet weight (3) decrease in photosynthesis when the disease is well develope...
متن کاملCalcium Transport in Protoplasts Isolated from ml-o Barley Isolines Resistant and Susceptible to Powdery Mildew.
Free cytoplasmic calcium has been postulated to play a role in preventing powdery mildew in a series of homozygous ml-o mutants of barley, Hordeum vulgare L. Protoplasts isolated from 7-day-old plants of the ml-o resistant-susceptible (R-S) barley isolines, Riso 5678/3(*) x Carlsberg II R and S, were used to test for differences in fluxes of Ca(2+) across the plasmalemma. Greater influx or less...
متن کاملEctopic expression of constitutively activated RACB in barley enhances susceptibility to powdery mildew and abiotic stress.
Small RAC/ROP-family G proteins regulate development and stress responses in plants. Transient overexpression and RNA interference experiments suggested that the barley (Hordeum vulgare) RAC/ROP protein RACB is involved in susceptibility to the powdery mildew fungus Blumeria graminis f. sp. hordei. We created transgenic barley plants expressing the constitutively activated RACB mutant racb-G15V...
متن کاملBarley ROP binding kinase1 is involved in microtubule organization and in basal penetration resistance to the barley powdery mildew fungus.
Certain plant receptor-like cytoplasmic kinases were reported to interact with small monomeric G-proteins of the RHO of plant (ROP; also called RAC) family in planta and to be activated by this interaction in vitro. We identified a barley (Hordeum vulgare) partial cDNA of a ROP binding protein kinase (HvRBK1) in yeast (Saccharomyces cerevisiae) two-hybrid screenings with barley HvROP bait prote...
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ژورنال
عنوان ژورنال: Ciência Rural
سال: 2014
ISSN: 1678-4596
DOI: 10.1590/s0103-84782014005000005