种内混合物中相邻植物的遗传特性调节小麦和水稻的疾病易感性。

IF 7.8 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY PLoS Biology Pub Date : 2023-09-12 eCollection Date: 2023-09-01 DOI:10.1371/journal.pbio.3002287
Rémi Pélissier, Elsa Ballini, Coline Temple, Aurélie Ducasse, Michel Colombo, Julien Frouin, Xiaoping Qin, Huichuan Huang, David Jacques, Fort Florian, Fréville Hélène, Violle Cyrille, Jean-Benoit Morel
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引用次数: 1

摘要

长期以来,混合作物品种一直被认为是在田间控制流行病的一种方式,人们对农业的兴趣正在复苏。然而,混合控制害虫的能力是高度可变的,并且在实地往往是不可预测的。除了经典的多样性效应,如基因型多样性产生的扩散屏障,还涉及几个研究不足的过程。其中包括最近发现的邻居调制易感性(NMS),它描述了给定植物中的易感性受到另一个健康邻居植物存在的影响的现象。尽管NMS在作物科学中具有巨大的重要性,但它的发生及其对调节栽培物种易感性的定量贡献仍然未知。在这里,在温室条件下接种被视为主要威胁的叶面真菌病原体的水稻和小麦中,使用200多对种内基因型混合物,我们通过实验证明,在排除任何流行病的实验条件下生长的混合物中,11%发生NMS。因此,这两种主要作物的易感性是由邻近植物的间接影响引起的。非常值得注意的是,由植物-植物相互作用调节的易感性水平可以达到内在基础免疫所赋予的水平。这些发现为开发更可持续的农业实践开辟了新的途径,通过设计不易受影响的作物混合物,这要归功于混合物的新兴但现在可以预测的特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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The genetic identity of neighboring plants in intraspecific mixtures modulates disease susceptibility of both wheat and rice.

Mixing crop cultivars has long been considered as a way to control epidemics at the field level and is experiencing a revival of interest in agriculture. Yet, the ability of mixing to control pests is highly variable and often unpredictable in the field. Beyond classical diversity effects such as dispersal barrier generated by genotypic diversity, several understudied processes are involved. Among them is the recently discovered neighbor-modulated susceptibility (NMS), which depicts the phenomenon that susceptibility in a given plant is affected by the presence of another healthy neighboring plant. Despite the putative tremendous importance of NMS for crop science, its occurrence and quantitative contribution to modulating susceptibility in cultivated species remains unknown. Here, in both rice and wheat inoculated in greenhouse conditions with foliar fungal pathogens considered as major threats, using more than 200 pairs of intraspecific genotype mixtures, we experimentally demonstrate the occurrence of NMS in 11% of the mixtures grown in experimental conditions that precluded any epidemics. Thus, the susceptibility of these 2 major crops results from indirect effects originating from neighboring plants. Quite remarkably, the levels of susceptibility modulated by plant-plant interactions can reach those conferred by intrinsic basal immunity. These findings open new avenues to develop more sustainable agricultural practices by engineering less susceptible crop mixtures thanks to emergent but now predictable properties of mixtures.

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来源期刊
PLoS Biology
PLoS Biology 生物-生化与分子生物学
CiteScore
14.40
自引率
2.00%
发文量
359
审稿时长
3 months
期刊介绍: PLOS Biology is an open-access, peer-reviewed general biology journal published by PLOS, a nonprofit organization of scientists and physicians dedicated to making the world's scientific and medical literature freely accessible. The journal publishes new articles online weekly, with issues compiled and published monthly. ISSN Numbers: eISSN: 1545-7885 ISSN: 1544-9173
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