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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:

第50卷

期数:

2022年第9期

页码:

247-252

栏目:

资源与环境

出版日期:

2022-05-05

文章信息/Info

Title:

Impacts of electronic donors on acid yield and microbial community structure of anaerobic fermenting with sunflower straw

作者:

封丽梅; 林淼; 姜茂成; 程秀花; 吉慧敏

扬州大学动物科学与技术学院，江苏扬州 225009

Author(s):

Feng Limei; et al

关键词:

乙醇; 乳酸; 瘤胃微生物; 向日葵秸秆; C2~C6脂肪酸

Keywords:

-

分类号:

X712

DOI:

-

文献标志码:

A

摘要:

为探究电子供体对瘤胃微生物发酵向日葵秸秆产C2~C6脂肪酸的影响，采用体外连续传代和高通量测序技术，比较添加乙醇或乳酸对脂肪酸产量及细菌和真菌群落结构的影响。结果表明，添加乙醇和乳酸显著提高了总C2~C6脂肪酸的产量，乙醇提高了乙酸、戊酸和己酸产量，乳酸提高了丙酸、丁酸、戊酸和己酸产量。与对照组相比，乙醇组的拟杆菌门相对丰度下降，而变形菌门相对丰度上升；乳酸组的变形菌门相对丰度下降，而放线菌门相对丰度上升。添加乙醇或乳酸对相对丰度前5的真菌菌门无显著影响。添加2种电子供体都显著改变了细菌和真菌的群落结构。添加乙醇显著提高萨特氏菌属、解琥珀酸菌属和脱硫弧菌属的相对丰度，添加乳酸显著提高巨型球菌属、Shuttleworthia、互营球菌属、光冈菌属、未定义的普雷沃氏菌的相对丰度。在种水平上，普雷沃氏菌、亨氏丁酸弧菌、埃氏巨型球菌与丁酸、戊酸产量呈显著相关。

Abstract:

-

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备注/Memo

备注/Memo:

收稿日期：2021-12-30
基金项目：扬州大学研究生科研与实践创新计划(编号：XSJCX20_032)；国家现代农业产业技术体系建设专项；江苏省高校优势学科建设工程。
作者简介：封丽梅(1996—)，女，江苏盐城人，硕士研究生，主要从事瘤胃挥发性脂肪酸的功能及代谢研究。E-mail：fenglimei1996@163.com。
通信作者：林淼，博士，副教授，主要从事瘤胃微生态及分子营养研究。E-mail：linmiao@yzu.edu.cn。

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更新日期/Last Update: 2022-05-05