[1]肇莹,杨镇,杨涛,等.植物内生菌醇提取物对草坪草抗旱性的影响[J].江苏农业学报,2015,(01):39-44.[doi:10.3969/j.issn.1000-4440.2015.01.006]
 ZHAO Ying,YANG Zhen,YANG Tao,et al.Influence of plant endophyte extract on turfgrass drought tolerance[J].,2015,(01):39-44.[doi:10.3969/j.issn.1000-4440.2015.01.006]
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植物内生菌醇提取物对草坪草抗旱性的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2015年01期
页码:
39-44
栏目:
遗传育种·耕作栽培·生理生化
出版日期:
2015-02-28

文章信息/Info

Title:
Influence of plant endophyte extract on turfgrass drought tolerance
作者:
肇莹杨镇杨涛曹君马晓颖肖军
(辽宁省农业科学院/微生物工程中心,辽宁沈阳110161)
Author(s):
ZHAO YingYANG ZhenYANG TaoCAO JunMa Xiao-yingXIAO Jun
(Liaoning Academy of Agricultural Sciences/Microbial Engineering Center, Shenyang 110161, China)
关键词:
草坪草内生菌醇提取物干旱胁迫生理指标
Keywords:
turfgrassendophyte alcohol extractdrought stressphysiological index
分类号:
S688.4
DOI:
10.3969/j.issn.1000-4440.2015.01.006
文献标志码:
A
摘要:
为了探讨植物内生真菌醇提取物(R+S+D)提高草坪草的抗旱能力和抗旱效果,以多年生草地早熟禾为试验材料,在4种浓度PEG-6000模拟干旱胁迫条件下,研究喷洒R+S+D的草坪草形态指标和生理生化指标的变化。结果显示,在不同浓度PEG-6000胁迫下,R+S+D都能一定程度减轻干旱胁迫的影响,其中20% PEG-6000 中度干旱胁迫时,喷施R+S+D处理的草坪草株高、草屑量、根干质量分别比喷施清水处理(对照)提高25.1%、77.4%、24.6%,根系活力是对照的1.75倍,叶绿素含量较对照高出46.0%,脯氨酸积累量是对照的1.4倍,对照丙二醛含量是喷施R+S+D处理的1.15倍。表明在中度干旱胁迫下,植物内生真菌醇提取物能有效减缓草坪草干旱胁迫的破坏程度。
Abstract:
The improvement of drought tolerance of turfgrass by endophytic fungi alcohol extract (R + S + D) were studied on Kentucky bluegrass which was treated with four concentrations of PEG-6000 to simulate drought conditions. The morphological, physiological and biochemical characteristics of turfgrass were investigated. The results showed that R + S + D could allieviate the drought stress caused by PEG-6000. Compared with control (spraying water), plant height, clippings dry weight, root dry weight and chlorophyll content of turfgrass under 20% PEG-6000 stress sprayed with R+S+D were increased by 25.1%, 77.4%, 24.6% and 46.0%, respectively. Root activity and proline accumulation were 1.75 times and 1.40 times as much as those of control. However, the MDA content in control was 1.15 times as much as that in R+S+D treatment. In conclusion, R+S+D could effectively reduce the damage to turfgrass under moderate drought stress.

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备注/Memo

备注/Memo:
收稿日期:2014-09-02 基金项目:辽宁省农业攻关计划项目(2011215005) 作者简介:肇莹(1981-),女,辽宁沈阳人,硕士,助理研究员,从事菌根菌相关研究。(Tel)13504988863;(E-mail)zhaoying_226@163.com 通讯作者:肖军,(E-mail)xiaojun20002@163com
更新日期/Last Update: 2015-02-28