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AM真菌对加拿大一枝黄花与菌根植物和非菌根植物种间作用的影响

引用本文：吴沛鸿,邱雅静,张欣磊,苏秀,王小赛,王艳红.AM真菌对加拿大一枝黄花与菌根植物和非菌根植物种间作用的影响.植物保护学报,2020,47(2):312-323

DOI：10.13802/j.cnki.zwbhxb.2020.2019104

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作者	单位	E-mail
吴沛鸿	浙江农林大学, 省部共建亚热带森林培育国家重点实验室, 杭州 311300
邱雅静	浙江农林大学, 省部共建亚热带森林培育国家重点实验室, 杭州 311300
张欣磊	浙江农林大学, 省部共建亚热带森林培育国家重点实验室, 杭州 311300
苏秀	浙江农林大学, 省部共建亚热带森林培育国家重点实验室, 杭州 311300
王小赛	浙江农林大学, 省部共建亚热带森林培育国家重点实验室, 杭州 311300
王艳红	浙江农林大学, 省部共建亚热带森林培育国家重点实验室, 杭州 311300	wangyanhong@zafu.edu.cn

中文摘要:为明确丛枝菌根（arbuscular mycorrhizal，AM）真菌对加拿大一枝黄花Solidago canadensis与本地菌根植物和非菌根植物种间竞争格局的调控作用，采用温室盆栽试验，通过接种摩西球囊霉Glomus mosseae（GM）、根内球囊霉G.intraradices（GI）及其混合菌种（GM+GI）3种处理，分析AM真菌对加拿大一枝黄花与本地菌根植物玉米Zea mays和非菌根植物油菜Brassica campestris种间作用的影响。结果表明：与对照相比，接种AM真菌均显著提高了加拿大一枝黄花和玉米的菌根侵染率，菌根侵染率为13.720%~50.015%，且前者的菌根侵染率明显高于后者。单独种植时，与对照相比，接种AM真菌尤其是接种混合菌种显著提高了加拿大一枝黄花的株高、叶片数和总干重。在加拿大一枝黄花与玉米混合种植时，与单独种植相比，加拿大一枝黄花的株高、叶片数、根长和总干重均较低；同时，与对照相比，接种AM真菌显著提高了玉米的相对竞争强度而对加拿大一枝黄花的相对竞争强度没有显著影响。在加拿大一枝黄花和油菜混合种植时，与对照相比，接种AM真菌则显著提高了加拿大一枝黄花的株高、叶片数、净光合速率和总干重；同时，接种AM真菌促进了入侵种的竞争优势而抑制了非菌根植物油菜的生长。说明加拿大一枝黄花与本地种的竞争格局受到与之混生物种的菌根依赖性强度以及AM真菌的种类差异影响。

中文关键词:加拿大一枝黄花 AM真菌菌根依赖性种间竞争

Effects of arbuscular mycorrhizal fungi on the interspecific interactions between invasive plant species Solidago canadensis and native mycorrhizal and non-mycorrhizal plants

Author Name	Affiliation	E-mail
WU Peihong	State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, Zhejiang Province, China
QIU Yajing	State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, Zhejiang Province, China
ZHANG Xinlei	State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, Zhejiang Province, China
SU Xiu	State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, Zhejiang Province, China
WANG Xiaosai	State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, Zhejiang Province, China
WANG Yanhong	State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, Zhejiang Province, China	wangyanhong@zafu.edu.cn

Abstract:To address the modulation effects of arbuscular mycorrhizal (AM) fungi on the interspecific interaction between invasive species Solidago canadensis and native mycorrhizal plant Zea mays and non-mycorrhizal plant Brassica campestris, a greenhouse experiment was conducted by inoculating with Glomus mosseae, G. intraradices and their mixtures. The results showed that AM fungi significantly increased the colonization rate of S. canadensis and Z. mays (13.720%-50.015%), and the mycorrhizal colonization rate of the former was higher than that of the latter. Growing in monoculture, the height, the leaf number and the total dry weight of S. canadensis were significantly increased by AM fungi inoculation, especially by mixture inoculation. Under the two-species mixture with Z. mays, compared to under monoculture, the height, the leaf number, the root length and the total dry weight of S. canadensis were significantly decreased; meanwhile, AM fungi inoculation significantly increased the relative competition intensity of Z. mays but had no significant effects on S. canadensis with comparison to the control. However, under the two-species mixture with B. campestris, AM fungi inoculation significantly increased the height, the leaf number and net photosynthetic rate of S. canadensis in relative to the control; also, inoculation with AM fungi increased the competition intensity of invasive species and decreased that of B. campestris. The results indicated that the competition patterns between S. canadensis and the native species were affected by the intensity of mycorrhizal dependency and the AM fungal species.

keywords:Solidago canadensis arbuscular mycorrhizal fungi mycorrhizal dependency interspecific competition

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