摘要
丛枝菌根真菌(Arbuscular mycorrhizal fungi, AMF)可与85%以上的有花植物形成菌根共生体,并通过菌丝有效地吸收宿主植物根际的水分以及无机矿质营养,尤其是促进磷(P)的吸收,从而促进宿主植物生长发育,进而提高其抗逆性。越来越多的研究表明AMF可以帮助宿主植物抵抗干旱胁迫,促进宿主植物生长。本文主要对宿主植物与AMF相互作用在缓解宿主干旱胁迫的作用机制方面进行综述,了解AMF介导的宿主植物耐旱机制对干旱、半干旱区的植物保护非常重要,并提出今后的研究需注意的问题和建议。
Arbuscular mycorrhizal fungi (AMF) can form mycorrhizal symbiosis with more than 80% of terrestrial plants, and can effectively absorb the mineral nutrition of the host plant rhizosphere through the hyphae, especially to improve the phosphorus nutrition status of the plant. In turn, it promotes the host plant to absorb water from the soil, promotes growth and development, and thereby improves plant resistance to stress. More and more studies have shown that AMF can help host plants resist drought stress and promote host plant growth. This article mainly reviews the mechanism of the interaction between host plants and AMF in alleviating drought stress, understands that AMF-mediated host plant drought tolerance mechanism is very important for plant protection in arid areas, and proposes issues and suggestions for future research.
出处
《植物学研究》
2021年第2期140-145,共6页
Botanical Research
