丛枝菌根真菌对水分胁迫下枇杷实生苗生长和养分吸收的影响

园艺学报 ›› 2012, Vol. 39 ›› Issue (4): 757-762.

丛枝菌根真菌对水分胁迫下枇杷实生苗生长和养分吸收的影响

张燕, 李娟, 姚青, 陈杰忠, 胡又厘, 刘翔宇, 黄永敬

（1 华南农业大学园艺学院，广州 510642；2 仲恺农业工程学院，广州 510225）

出版日期:2012-04-25 发布日期:2012-04-25

Effects of Arbuscular Mycorrhizal Fungi on Growth and Nutrient Uptake of Eriobotrya japonica Plants Under Different Water Regimes

ZHANG Yan, LI Juan, YAO Qing, CHEN Jie-Zhong, HU You-Li, LIU Xiang-Yu, HUANG Yong-Jing

（1College of Horticulture，South China Agricultural University，Guangzhou 510642，China；2Zhongkai University of Agriculture and Engineering，Guangzhou 510225，China）

Online:2012-04-25 Published:2012-04-25

摘要/Abstract

摘要： 以‘早钟6号’枇杷（Eriobotrya japonica Lindl.‘Zaozhong 6’）实生苗为试材，研究了3种水分梯度（正常供水、轻度水分胁迫和重度水分胁迫）下，分别接种3种丛枝菌根（arbuscular mycorrhiza，AM）真菌（光壁无梗囊霉Acaulospora laevis、摩西球囊霉Glomus mosseae和苏格兰球囊霉Glomus caledonium）对实生苗生长和养分吸收的影响。结果表明，接种AM真菌的植株具有更高的地上部和地下部干质量；3种AM真菌均可增加枇杷苗氮、钾、磷、钙、镁、铜的吸收。说明接种AM真菌增强了枇杷苗的养分吸收能力，提高了其抗旱性，促进了枇杷苗生长。在3种AM真菌中苏格兰球囊霉是枇杷苗的优势菌种。

关键词: 枇杷, 丛枝菌根, 干旱, 耐受性

Abstract: The effects of three arbuscular mycorrhizal（AM）fungi（Acaulospora laevis，Glomus mosseae and Glomus caledonium）on plant growth and nutrient uptake of loquat（Eriobotrya japonica Lindl. ‘Zaozhong 6’）seedlings under three water regimes（well watered，water stressed-slight，water stressed-heavy） were investigated. Results indicated that inoculated seedlings had higher shoot and root dry biomass than the un-inoculated counterparts under all water regimes. All three AMF species increased the uptake of N，K，P，Ca，Mg and Cu. The influence of mycorrhizal inoculation to nutrient uptake and biomass of loquat seedlings was similar. It is suggested that mycorrhizal inoculation promoted the absorption of nutrition which contributed to improve its drought tolerance and the growth of loquat seedlings. G. caledonium is the dominant species of loquat seedlings in the three isolates of AM fungi.

Key words: loquat, arbuscular mycorrhizae, water stress, tolerance

中图分类号:

S 667.3

张燕, 李娟, 姚青, 陈杰忠, 胡又厘, 刘翔宇, 黄永敬. 丛枝菌根真菌对水分胁迫下枇杷实生苗生长和养分吸收的影响[J]. 园艺学报, 2012, 39(4): 757-762.

ZHANG Yan, LI Juan, YAO Qing, CHEN Jie-Zhong, HU You-Li, LIU Xiang-Yu, HUANG Yong-Jing. Effects of Arbuscular Mycorrhizal Fungi on Growth and Nutrient Uptake of Eriobotrya japonica Plants Under Different Water Regimes[J]. ACTA HORTICULTURAE SINICA, 2012, 39(4): 757-762.

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