From nutrition to protection: the role of arbuscular mycorrhizal fungi in the interactions of plants with endoparasitic nematodes – A meta-analysis

IF 3.9 2区 农林科学 Q1 AGRONOMY
Milena Caccia, Gabriel Grilli, Martina Janoušková, Nicolás Marro
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Abstract

Aims

We conducted an updated meta-analysis on how arbuscular mycorrhizal fungi (AMF) improve the growth and phosphorus (P) and nitrogen (N) nutrition of plants infected by plant parasitic nematodes (PPN), and the effect of PPN on AMF root colonization, depending on AMF orders and PPN life habits.

Methods

We considered data from greenhouse experiments with AMF and PPN inoculation to perform a meta-analysis. We also correlated the effect of AMF on PPN performance and plant nutrition with plant biomass. Furthermore, we correlated AMF root colonization level on PPN effect with plant biomass and on AMF effect with PPN performance.

Results

With sedentary PPN, our results suggest that AMF increased plant biomass and nutrients. In plants infected with migratory PPN, N increased with all AMFs, but biomass increased only with Glomerales.

While Glomerales and Gigasporales reduced the populations of sedentary PPN, mixed inoculum and Diversisporales had no effect. Conversely, mixed inoculum reduced migratory PPN while Glomerales was not effective. PPN infection did not affect AMF colonization. We found a positive correlation between the effect of AMF inoculation on P nutrition and on plant biomass, and also between AMF colonization level and the effect of PPN on plant biomass, while root colonization level was not correlated with the effect of AMF on PPN.

Conclusions

AMF may confer increased pest tolerance and/or resistance mechanisms to PPN-infected plants, with varying outcomes depending on the AMF phylogenetic orders and PPN life habits, suggesting unexplored mechanisms of biocontrol that could contribute to sustainable crop protection strategies.

从营养到保护:丛枝菌根真菌在植物与内生线虫相互作用中的作用-荟萃分析
目的对植物寄生线虫(plant parasitic nematodes, PPN)侵染植物后,丛枝菌根真菌(arbuscular mycorrhizal fungi, AMF)对植物生长和磷、氮营养的影响进行了meta分析,分析了植物寄生线虫(plant parasitic nematodes, PPN)侵染植物后,丛枝菌根真菌(AMF)对植物根系定殖的影响。方法采用AMF和PPN接种温室试验数据进行meta分析。我们还将AMF对PPN性能和植物营养与植物生物量的影响联系起来。此外,我们还将AMF根定殖水平与PPN效应与植物生物量、AMF效应与PPN性能相关。结果在久坐PPN中,我们的研究结果表明AMF增加了植物生物量和养分。在侵染迁移性PPN的植物中,氮素随AMFs的增加而增加,但生物量只随肾小球的增加而增加。虽然小球和巨孢子减少了久坐PPN的数量,但混合接种和多样性孢子没有影响。相反,混合接种可减少迁移性PPN,而对肾小球无效。PPN感染不影响AMF定植。结果表明,接种AMF对磷营养的影响与植物生物量的影响呈正相关,AMF定殖水平与PPN对植物生物量的影响呈正相关,而根系定殖水平与AMF对PPN的影响不相关。结论samf可能增强了植物对PPN的耐受性和/或抗性,其结果取决于AMF的系统发育顺序和PPN的生活习性,这表明尚未被探索的生物防治机制可能有助于可持续的作物保护策略。
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来源期刊
Plant and Soil
Plant and Soil 农林科学-农艺学
CiteScore
8.20
自引率
8.20%
发文量
543
审稿时长
2.5 months
期刊介绍: Plant and Soil publishes original papers and review articles exploring the interface of plant biology and soil sciences, and that enhance our mechanistic understanding of plant-soil interactions. We focus on the interface of plant biology and soil sciences, and seek those manuscripts with a strong mechanistic component which develop and test hypotheses aimed at understanding underlying mechanisms of plant-soil interactions. Manuscripts can include both fundamental and applied aspects of mineral nutrition, plant water relations, symbiotic and pathogenic plant-microbe interactions, root anatomy and morphology, soil biology, ecology, agrochemistry and agrophysics, as long as they are hypothesis-driven and enhance our mechanistic understanding. Articles including a major molecular or modelling component also fall within the scope of the journal. All contributions appear in the English language, with consistent spelling, using either American or British English.
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