摘要
在温室盆栽条件下研究丛枝菌根真菌Glomus versiforme (Karsten) Berch对正常水分和水分胁迫下的红橘(Citrus tangerine Hort.ex Tanaka)实生苗根系大量元素和微量元素含量的影响.结果表明,水分胁迫显著抑制丛枝菌根真菌对根系的侵染.无论在正常水分还是水分胁迫下,丛枝菌根真菌的感染对根系Fe没有显著影响,但显著增加根系P、Ca、Mg、Cu和Mn的含量.丛枝菌根真菌的接种仅显著增加水分胁迫下根系N含量和正常水分下根系K含量.丛枝菌根真菌处理对根系Zn的效果依土壤水分状况而异.
A potted experiment under the condition of greenhouse was conducted to research the influence of arbus- cular myeorrhizal fungi, Glomus versiforme （Karsten） Berch, on mineral nutrition in roots of tangerine （ Citrus tange- rine Hort. ex Tanaka） exposed to well-watered and water stress. Water stress significantly decreased the arbuscular mycorrhizal inoculation. Whether water stressed or not, mycorrhizal infection did not affect the Fe content of roots, but markedly increased the P, Ca, Mg, Cu and Mn contents of roots. Arbuscular mycorrhizal fungal colonization enhanced both the N content of water-stressed roots and the K content of well-watered roots. Effect of arbuscular mycorrhizal fun- gal treatment on Zn of roots was variational, accompanying with water status of soil.
出处
《信阳师范学院学报（自然科学版）》
CAS
2009年第4期526-529,543,共5页
Journal of Xinyang Normal University(Natural Science Edition)
基金
长江大学博士科研启动金项目(39210264)
关键词
丛枝菌根真菌
红橘
水分胁迫
矿质营养
arbuscular mycorrhizal fungi
red tangerine
water stress
mineral nutrition
