RFLP mapping of three new loci for resistance genes to powdery mildew (Erysiphe graminis f. sp. hordei) in barley

1996 ◽  
Vol 93-93 (1-2) ◽  
pp. 48-56 ◽  
Author(s):  
M. Schönfeld ◽  
A. Ragni ◽  
G. Fischbeck ◽  
A. Jahoor
Keyword(s):  
Powdery Mildew ◽  
Resistance Genes ◽  
Erysiphe Graminis ◽  
Rflp Mapping

Operation of resistance genes in wheat to Erysiphe graminis f.sp. tritici against E. graminis f.sp. agropyri

Genome ◽  
1990 ◽  
Vol 33 (2) ◽  
pp. 231-234 ◽  
Author(s):  
Y. Tosa ◽  
S. Tada
Keyword(s):  
Powdery Mildew ◽  
Common Wheat ◽  
Resistance Genes ◽  
Wheat Cultivar ◽  
Erysiphe Graminis ◽  
Near Isogenic Lines ◽  
Avirulence Genes ◽  
Common Wheat Cultivar ◽  
Isogenic Lines ◽  
The Common

The common wheat cultivar 'Chancellor' and its near-isogenic lines carrying resistance genes to Erysiphe graminis f.sp. tritici were inoculated with 240 F1 cultures derived from a cross between E. graminis f.sp. agropyri, Ak-1, and E. graminis f.sp. tritici, Tk-1. Segregation patterns of avirulent and virulent cultures suggested that the F1 population carries avirulence genes corresponding to Pm1, Pm2, Pm3a, and Pm3b. These avirulence genes were considered to be derived from Ak-1. It was therefore concluded that Pm1, Pm2, Pm3a, and Pm3b, resistance genes to E. graminis f.sp. tritici, operate against E. graminis f.sp. agropyri.Key words: powdery mildew, Erysiphe graminis, resistance, wheat, wheatgrass.

Effectiveness of Twenty-Four Barley Resistance Genes Against Powdery Mildew (Erysiphe graminis DC f. sp. hordei Em. Marchal) in Spain

1992 ◽  
Vol 109 (1) ◽  
pp. 40-45 ◽  
Author(s):  
J. L. Molina-Cano ◽  
J. L. Montoya ◽  
J. Echarte ◽  
C. Royo ◽  
J. Serra ◽  
...  
Keyword(s):  
Powdery Mildew ◽  
Resistance Genes ◽  
Erysiphe Graminis ◽  
Barley Resistance

INHERITANCE OF RESISTANCE TO ERYSIPHE GRAMINIS F. SP. HORDEI IN BARLEY: I. THE INHERITANCE OF RESISTANCE IN TWO VARIETIES IMMUNE TO RACE 8

1964 ◽  
Vol 44 (3) ◽  
pp. 259-262
Author(s):  
R. Loiselle
Keyword(s):  
Powdery Mildew ◽  
Resistance Genes ◽  
Dominant Gene ◽  
Erysiphe Graminis ◽  
Inheritance Of Resistance ◽  
Hair Length ◽  
Dominant Genes

The inheritance of resistance to a culture of race 8 of powdery mildew was studied in the resistant barley varieties Ottawa 5069-40 and B294. Ottawa 5069-40 possesses one dominant gene for resistance which is probably the gene from the variety Duplex. B294 possesses two dominant genes for resistance. The three resistance genes are inherited independently. No linkage was detected between the resistance genes and the genes for row number, awn type, and rachilla hair length.

Cloning and Characterization of a Novel Wheat Glycoside Hydrolase Gene TaGlc2 Induced by Powdery Mildew Pathogen (Erysiphe graminis) Infection

2009 ◽  
Vol 35 (5) ◽  
pp. 786-794
Author(s):  
N PUDAKE Ramesh ◽  
Ming-Ming XIN ◽  
Yu-Jing YIN ◽  
Chao-Jie XIE ◽  
Zhong-Fu NI ◽  
...  
Keyword(s):  
Powdery Mildew ◽  
Glycoside Hydrolase ◽  
Erysiphe Graminis ◽  
Powdery Mildew Pathogen

Identification and SSR Mapping of Two Powdery Mildew Resistance Genes in Wild Emmer (Triticum dicoccoides) Accessions IW3 and IW10

2009 ◽  
Vol 35 (5) ◽  
pp. 761-767 ◽  
Author(s):  
Gen-Qiao LI ◽  
Ti-Lin FANG ◽  
Hong-Tao ZHANG ◽  
Chao-Jie XIE ◽  
Zuo-Min YANG ◽  
...  
Keyword(s):  
Powdery Mildew ◽  
Resistance Genes ◽  
Powdery Mildew Resistance ◽  
Triticum Dicoccoides ◽  
Wild Emmer ◽  
Mildew Resistance

Changes in sterol composition with ontogeny of Blumeria graminis conidia

2000 ◽  
Vol 78 (10) ◽  
pp. 1288-1293 ◽  
Author(s):  
Jérôme Muchembled ◽  
Anissa Lounès-Hadj Sahraoui ◽  
Anne Grandmougin-Ferjani ◽  
Michel Sancholle
Keyword(s):  
Powdery Mildew ◽  
Plant Pathogen ◽  
Total Sterol ◽  
Sterol Composition ◽  
Blumeria Graminis ◽  
Erysiphe Graminis ◽  
Qualitative And Quantitative ◽  
Wheat Powdery Mildew

The total sterol composition of conidia of the obligate plant pathogen Blumeria (= Erysiphe) graminis f.sp. tritici has been analysed as a function of their ontogeny during sporulation. Two main classes of sterols were characterized: 24-ethylsterols (24-ethylcholesta-5,22-dienol, 24-ethylcholesterol, and Δ5-avenasterol) and 24-methylsterols (24-methylenecholesterol and episterol). Our results show that sterol composition is greatly modified during ontogeny of B. graminis conidia both at the qualitative and quantitative levels. In particular, 24-methylsterols, e.g., 24-methylenecholesterol and episterol, are the major sterols in old conidia whereas 24-ethylsterols, e.g., 24-ethylcholesta-5,22-dienol, 24-ethylcholesterol, and Δ5-avenasterol, are the main sterols in young conidia.Key words: Erysiphe, wheat powdery mildew, sterols, ontogeny.

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