Citrus plants possess less or no root hairs in the fields and thus highly depend on arbuscular mycorrhizas to replace the root hair for nutrient uptake from soil .Therefore,arbuscular mycorrhizas in citrus have been widely concerned .This paper summarizes the new advances in the research of morphology ,fungal re-sources in rhizosphere ,physiology and molecular studies of arbuscular my corrhizas in citrus ,and factors impac-ting mycorrhizal functionings .It clarifies the physiological functions of arbuscular mycorrhizas in terms of plant growth ,nutrient uptake and adverse tolerance .%田间栽培的柑橘根毛少甚至无，高度依赖丛枝菌根替代根毛吸收养分，因而柑橘丛枝菌根的研究被广泛关注。本文综述了近20年国内外柑橘丛枝菌根的形态特征、根际丛枝菌根真菌的资源、丛枝菌根的生理和分子研究以及菌根功能的影响因子的最新进展，重点通过植株生长、营养吸收和抗逆性阐明丛枝菌根的生理功能。
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