p-Coumaric can alter the composition of cucumber rhizosphere microbial communities and induce negative plant-microbial interactions
p-Coumaric can alter the composition of cucumber rhizosphere microbial communities and induce negative plant-microbial interactions
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对香豆酸可以改变黄瓜根际微生物群落的组成并诱导负面的植物-微生物相互作用
DOI：
10.1007/s00374-018-1265-x
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发表时间：
2018-01
影响因子：
6.5
通讯作者：
Fengzhi Wu
中科院分区：
文献类型：
--
作者：
Xingang Zhou;Jianhui Zhang;D;an Pan;Xin Ge;Xue Jin;Shaocan Chen;Fengzhi Wu
植物根系分泌物或腐烂残渣中的酚类物质通常被称为植物自毒素。然而，酚类物质如何影响土壤微生物群落及其功能意义知之甚少。黄瓜根际细菌和真菌群落研究通过16 S rRNA基因和内转录间隔区扩增子的高通量测序，分析了黄瓜自毒素对香豆酸处理的幼苗。对香豆酸降低了根际土壤细菌的多样性，但增加了根际土壤真菌的多样性，改变了根际土壤细菌和真菌的群落组成;对香豆酸增加了根际土壤中具有苯酚降解能力的微生物类群的相对丰度（如毛壳菌属、腐质霉属和被孢霉属）以及含有植物病原菌的微生物类群（如镰刀菌属）。然而，对香豆酸抑制溶杆菌属、盐囊菌属和裸囊菌属的相对丰度，其物种可具有病原体拮抗和/或植物生长促进作用。香豆酸降低了黄瓜根际微生物区系对黄瓜幼苗生长的促进作用。总体而言，我们的研究结果表明，除了其直接的植物毒性，p-香豆酸可以通过产生负面的植物-土壤微生物相互作用抑制黄瓜幼苗生长。
Phenolics from root exudates or decaying residues are usually referred as autotoxins of several plant species. However, how phenolics affect soil microbial communities and their functional significances are poorly understood. Rhizosphere bacterial and fungal communities from cucumber (Cucumis sativusL.) seedlings treated withp-coumaric acid, an autotoxin of cucumber, were analyzed by high-throughput sequencing of 16S rRNA gene and internal transcribed spacer amplicons. Then, feedback effects of the rhizosphere biota on cucumber seedlings were evaluated by inoculating non-sterilized and sterilized rhizosphere soils to sterilized background soils.p-Coumaric acid decreased the bacterial diversity of rhizosphere but increased fungal diversity and altered the compositions of both the bacterial and fungal communities.p-Coumaric acid increased the relative abundances of microbial taxa with phenol-degrading capability (such asChaetomium,Humicola, andMortierellaspp.) and microbial taxa which contained plant pathogens (such asFusariumspp.). However,p-coumaric acid inhibited the relative abundances ofLysobacter,Haliangium, andGymnoascusspp., whose species can have pathogen-antagonistic and/or plant-growth-promoting effects. The positive effect of cucumber rhizosphere microbiota on cucumber seedling growth was reduced byp-coumaric acid. Overall, our results showed that, besides its direct phytotoxicity,p-coumaric acid can inhibit cucumber seedling growth through generating negative plant-soil microbial interactions.
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黄瓜与葱蒜间作对土壤酶活性、微生物群落及黄瓜产量的影响
影响因子：
4.2
作者：
吴凤芝
通讯作者：
吴凤芝
DOI：
10.1016/s0007-1536(76)80058-7
发表时间：
1976
期刊：
Transactions of The British Mycological Society
影响因子：
--
作者：
R. Black;N. J. Dix
通讯作者：
R. Black;N. J. Dix
影响因子：
3.3
作者：
Fudou, R;Iizuka, T;Yamanaka, S
通讯作者：
Yamanaka, S
影响因子：
2.1
作者：
Roosta, Hamid R.;Schjoerring, Jan K.
通讯作者：
Schjoerring, Jan K.
影响因子：
6.1
作者：
Liu, Ting;Meyer, Susan L. F.;Liu, Wei-cheng
通讯作者：
Liu, Wei-cheng