梨黑星病抗性机理的研究进展

doi:10.7668/hbnxb.2007.S2.056

华北农学报 ›› 2007, Vol. 22 ›› Issue (S2): 239-242. doi: 10.7668/hbnxb.2007.S2.056

所属专题： 梨；

梨黑星病抗性机理的研究进展

张海娥, 乐文全, 张新忠

河北农林科学院昌黎果树研究所, 河北昌黎 066600

收稿日期:2007-04-30 出版日期:2007-12-31
通讯作者: 张新忠(1966-),男,河北平泉人,博士,研究员,主要从事果树种质资源与遗传育种研究.
作者简介:张海娥(1977-),女,山东寿光人,硕士,主要从事梨黑星病的抗性机制及抗性育种研究

Studies on Mechanism of Scab Resistance in Pears

ZHANG Hai-e, YUE Wen-quan, ZHANG Xin-zhong

Changli Pomology Institute,Changli 066600,China

Received:2007-04-30 Published:2007-12-31

摘要/Abstract

摘要： 综述了梨黑星菌的分化类型、侵入机制、抗性遗传及抗性机理的研究进展。梨黑星菌在叶片中寄生的具体位置是果胶层。V.nashicola对抗性、易感和非寄主材料的初期侵染相似,当真菌侵入角质层之后,亚角质层菌丝在易感材料中的增长速率远远高于抗性和非寄主材料,并且在抗性和非寄主材料上出现死亡菌丝,这些都表明抗性是在真菌侵入角质层之后表达的。梨黑星病抗性等位基因和敏感性等位基因定位于不同的连锁基因组上,梨黑星病抗性基因与苹果黑星病抗性基因具有同源性。

关键词: 梨黑星菌, 专化型, 果胶层, 连锁图谱

Abstract: Studies development on specifications of pear scab,infection mechanism,heredity of resistance and resistant mechanism were viewed.The exact position where pear scab parasite in leaves was pectin layer.The primary injections of V.nashicola to resistant,suspectible and non-host materials were similar,the increasing rate of subcuticular hyphae on suspectible material is far higher than resistant and non-host material,and dead hyphae appeared on resistant and non-host material,which indicated that resistance expressed after hyphae had invaded cuticular.Suspectible and resistant allele of pear scab located in different linkage groups,and resistant gene of pear scab was homologous to apple scab.

Key words: Pear scab, Specifications, Pectin layer, Linkage mapping

中图分类号:

S436.612

张海娥, 乐文全, 张新忠. 梨黑星病抗性机理的研究进展[J]. 华北农学报, 2007, 22(S2): 239-242. doi: 10.7668/hbnxb.2007.S2.056.

ZHANG Hai-e, YUE Wen-quan, ZHANG Xin-zhong. Studies on Mechanism of Scab Resistance in Pears[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2007, 22(S2): 239-242. doi: 10.7668/hbnxb.2007.S2.056.

http://www.hbnxb.net/CN/Y2007/V22/IS2/239

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