未来的一种生物肥料:丛枝菌根真菌

Arbuscular mycorrhizal fungi:a biofertilizer of the future

丛枝菌根真菌(Arbuscular Mycorrhizal Fungi,AMF)存在于几乎所有类型的土壤中,可以与绝大多数被子植物的根共生。大多数农作物、果树、蔬菜、观赏植物和花卉等都能形成丛枝菌根。AMF 能促进作物吸收利用矿质养分和水分,提高作物抗逆性和抗病性,改良土壤、提高苗木移栽成活率、促进生长、提高产量和改善品质,并且可用于改善退化生态系统的土壤肥力,维持农林业的可持续发展,将成为一种新型的生物肥料被用于农林业生产。本文讨论了影响菌根侵染率的因素、AMF 的生态效应和在生态农业中的应用现状和前景。

Arbuscular Mycorrhizal Fungi(AMF)exist in almost all kinds of soils and form symbiosis with nearly all families of the angiosperms.Most of the crops,fruit trees,vegetables and ornamental plants can form arbuscular mycorrhizae.AMF can enhance plant growth by increasing uptake of nutrients and water,increase plant resistance to several soil-borne root pathogens and tolerance to adverse circumstances.AMF also play an important role in conservation of soil and are thus regarded as a 'biological fertilizers'. Inoculation with AMF improves the growth and primary establishment of seedlings.For the improvement of degraded ecosystem and sustainable utilization of forest and agricultural resources,AMF could be used as a biofertilizers in the future.