Concepts in plant disease resistance
Concepts in plant disease resistance
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DOI：
10.1590/s0100-41582001000300001
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发表时间：
2001-09
期刊：
影响因子：
--
通讯作者：
F. Vale;J. Parlevliet;L. Zambolim
中科院分区：
文献类型：
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作者：
F. Vale;J. Parlevliet;L. Zambolim
对几乎所有病原体的抗性在我们的作物中大量存在。育种者利用的大部分抗性是主要基因型。多基因抗性，虽然使用得少得多，但更为丰富。许多类型的耐药性是非常难以捉摸的，病原体显然很容易适应它们。其他类型的抗性，即所谓的持久抗性，在更长时间内保持有效。难以捉摸的耐药性总是单基因型的，通常是针对特定病原体的超敏型的。种族特异性不是难以捉摸的耐药性的原因，而是其结果。了解获得性耐药性可能为控制病原体开辟有趣的途径。对于分子技术来说更是如此，因为分子技术已经代表了非常广泛的可能性。通过转化获得的电阻通常是数量型的，在大多数情况下可能是持久的。
Resistance to nearly all pathogens occurs abundantly in our crops. Much of the resistance exploited by breeders is of the major gene type. Polygenic resistance, although used much less, is even more abundantly available. Many types of resistance are highly elusive, the pathogen apparently adapting very easily them. Other types of resistance, the so-called durable resistance, remain effective much longer. The elusive resistance is invariably of the monogenic type and usually of the hypersensitive type directed against specialised pathogens. Race-specificity is not the cause of elusive resistance but the consequence of it. Understanding acquired resistance may open interesting approaches to control pathogens. This is even truer for molecular techniques, which already represent an enourmously wide range of possibilities. Resistance obtained through transformation is often of the quantitative type and may be durable in most cases.