当前位置: X-MOL 学术New Phytol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Perennial, but not annual legumes synergistically benefit from infection with arbuscular mycorrhizal fungi and rhizobia: a meta-analysis
New Phytologist ( IF 9.4 ) Pub Date : 2021-10-09 , DOI: 10.1111/nph.17787
Silmar Primieri 1 , Susan M Magnoli 2 , Thomas Koffel 3, 4 , Sidney L Stürmer 5 , James D Bever 2, 6
Affiliation  

  • Many plant species simultaneously interact with multiple symbionts, which can, but do not always, generate synergistic benefits for their host. We ask if plant life history (i.e. annual vs perennial) can play an important role in the outcomes of the tripartite symbiosis of legumes, arbuscular mycorrhizal fungi (AMF), and rhizobia.
  • We performed a meta-analysis of 88 studies examining outcomes of legume–AMF–rhizobia interactions on plant and microbial growth.
  • Perennial legumes associating with AMF and rhizobia grew larger than expected based on their response to either symbiont alone (i.e. their response to co-inoculation was synergistic). By contrast, annual legume growth with co-inoculation did not differ from additive expectations. AMF and rhizobia differentially increased phosphorus (P) and nitrogen (N) tissue concentration. Rhizobium nodulation increased with mycorrhizal fungi inoculation, but mycorrhizal fungi colonization did not increase with rhizobium inoculation. Microbial responses to co-infection were significantly correlated with synergisms in plant growth.
  • Our work supports a balanced plant stoichiometry mechanism for synergistic benefits. We find that synergisms are in part driven by reinvestment in complementary symbionts, and that time-lags in realizing benefits of reinvestment may limit synergisms in annuals. Optimization of microbiome composition to maximize synergisms may be critical to productivity, particularly for perennial legumes.


中文翻译:

多年生,但不是一年生豆科植物协同受益于丛枝菌根真菌和根瘤菌的感染:荟萃分析

  • 许多植物物种同时与多种共生体相互作用,这些共生体可以但并不总是为其宿主产生协同效益。我们询问植物生活史(即一年生与多年生)是否可以在豆科植物、丛枝菌根真菌 (AMF) 和根瘤菌三方共生的结果中发挥重要作用。
  • 我们对 88 项研究进行了荟萃分析,检查豆科植物-AMF-根瘤菌相互作用对植物和微生物生长的影响。
  • 与 AMF 和根瘤菌相关的多年生豆科植物的生长比预期的大,基于它们对任一共生体的单独反应(即它们对共同接种的反应是协同的)。相比之下,联合接种的豆类年生长与添加剂预期没有差异。AMF 和根瘤菌不同地增加磷 (P) 和氮 (N) 组织浓度。接种菌根真菌后根瘤菌结瘤增加,但接种根瘤菌时菌根真菌定殖不增加。微生物对共同感染的反应与植物生长的协同作用显着相关。
  • 我们的工作支持平衡的植物化学计量机制以实现协同效益。我们发现协同效应部分是由对互补共生体的再投资驱动的,实现再投资收益的时间滞后可能会限制年度协同效应。优化微生物组组成以最大化协同作用可能对生产力至关重要,特别是对于多年生豆科植物。
更新日期:2021-12-02
down
wechat
bug