| 沙田柚根围AM真菌的生境适宜性和季节变化性 |
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| 引用本文： | 仝瑞建,刘雪琴,王发园,薛华清,杨晓红. 沙田柚根围AM真菌的生境适宜性和季节变化性[J]. 应用与环境生物学报, 2011, 0(5): 684-687 |
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| 作者姓名： | 仝瑞建 刘雪琴 王发园 薛华清 杨晓红 |
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| 作者单位： | 洛阳师范学院生命科学系;河南科技大学农学院;重庆交通科研设计院;西南大学园艺园林学院; |
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| 基金项目： | 国家自然科学基金项目(No.40801120); 河南省科技攻关计划项目(No.112102310524)资助~~ |
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| 摘 要： | 以山地长寿沙田柚成年果树为对象,研究不同生境和季节对丛枝菌根(Arbuscular mycorrhiza,AM)真菌侵染以及根围土壤中AM真菌孢子密度的影响.试验结果表明,不同生境下,菌根侵染率和AM真菌孢子密度都是以梯田最高,坡地次之,洼地最低;在坡地和洼地生境下,生草区均高于清耕区.两块试验地AM真菌的菌丝侵染率均为夏季最高(16.8%±1.9%和16.0%±1.8%),秋季次之,冬季最低;丛枝和泡囊的形成也是夏/秋季较高,春/冬季较低;而根围土壤中AM真菌孢子密度则是秋季最高[(159±19)个/100 g和(167±17)个/100 g],夏季次之,冬季最低.总之,对于长寿沙田柚成年果树,AM真菌的菌根侵染率在夏季梯田最高,根围土壤中的AM真菌孢子密度在秋季梯田最高;在坡地和洼地生境中,生草处理均可显著提高菌根侵染率和AM真菌孢子密度.图4参27
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| 关 键 词： | AM真菌 沙田柚 生境 季节变化 侵染率 孢子密度 |
Effects of Different Habitats and Seasons on Arbuscular Mycorrhizal Fungi in Rhizosphere of Citrus grandis cv.Changshou Shatian You |
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| TONG Ruijian,LIU Xueqin,WANG Fayuan,XUE Huaqing , YANG Xiaohong. Effects of Different Habitats and Seasons on Arbuscular Mycorrhizal Fungi in Rhizosphere of Citrus grandis cv.Changshou Shatian You[J]. Chinese Journal of Applied and Environmental Biology, 2011, 0(5): 684-687 |
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| Authors: | TONG Ruijian LIU Xueqin WANG Fayuan XUE Huaqing & YANG Xiaohong |
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| Affiliation: | TONG Ruijian1,LIU Xueqin1,WANG Fayuan2,XUE Huaqing3 & YANG Xiaohong4(1Life Science Department,Luoyang Normal University,Luoyang 471022,Henan,China)(2Agricultural College,Henan University of Science and Technology,Luoyang 471003,China)(3Chongqing Communications Research and Design Institute,Chongqing 400067,China)(4College of Horticulture and Landscape Architecture,Southwest University,Chongqing 400716,China) |
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| Abstract: | The effects of different habitats and seasons on arbuscular mycorrhizal(AM) colonization of adult pomelo(Citrus grandis cv.Changshou Shatian You) trees and AM fungal spore density in rhizosphere soil were investigated.The results showed that the highest AM fungi colonization rate and spore density were recorded in terraced field,and followed by sloping fields and lying land.In sloping fields or lying land,grassland had a higher AM fungal colonization rate and spore density than no-tillage area.In different ... |
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| Keywords: | arbuscular mycorrhizal fungi Citrus grandis cv.Changshou Shatian You habitat seasonal variation mycorrhizal colonization rate spore density |
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