期刊
ECOLOGY LETTERS
卷 25, 期 8, 页码 1879-1888出版社
WILEY
DOI: 10.1111/ele.14073
关键词
antagonistic symbionts; mutualistic symbionts; plant-associated fungi; plant-microbe interactions; tripartite plant symbiosis
类别
资金
- Ministry of Business, Innovation and Employment [LVLX1702]
- New Zealand Ministry of Business, Innovation & Employment (MBIE) [LVLX1702] Funding Source: New Zealand Ministry of Business, Innovation & Employment (MBIE)
This study assessed the impact of bacterial relationships on plant performance in mutualistic and antagonistic fungal associations. It found that the performance gain provided by bacteria may be influenced by the functional traits of the symbiont, the type of bacterial protection against antagonistic fungi, and the presence of biotic or abiotic stresses.
Plants interacting with mutualistic fungi (MF) or antagonistic fungi (AF) can form associations with bacteria. We assessed whether the performance gain conferred by mutualistic bacteria to fungal-associated plants is affected by the interaction between symbiont traits, type of bacterial-protective traits against AF and abiotic/biotic stresses. Results showed that (A) performance gain conferred by bacteria to MF-associated plants was greater when symbionts promoted distinct rather than similar plant functions, (B) bacterial-based alleviation of the AF's negative effect on plants was independent of the type of protective trait, (C) bacteria promoted a greater performance of symbiotic plants in presence of biotic, but not abiotic, stress compared to stress-free situations. The plant performance gain was not affected by any fungal-bacterial trait combination but optimised when bacteria conferred resistance traits in biotic stress situations. The effects of bacteria on fungal-associated plants were controlled by the interaction between the symbionts' functional traits and the relationship between bacterial traits and abiotic/biotic stresses.
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