干旱胁迫下外源内生真菌对燕麦种子萌发及幼苗生长的影响
【目的】探讨外源内生真菌对干旱胁迫下燕麦种子萌发和幼苗生长的影响。【方法】以燕麦(Avena sativa L.)为研究对象,设正常水分处理(WW)和12%PEG-6000模拟干旱胁迫(HD)2个水分处理,分别添加Czapek培养基(CK)、外源内生真菌O-2(Fusarium equiseti)和O-66(Alternaria pomicola),分析干旱胁迫下外源内生真菌对种子发芽、幼苗生长、根系结构和生理特性的影响。【结果】外源内生真菌O-2、O-66均能在燕麦根中检测到。干旱胁迫显著抑制了种子的萌发,内生真菌O-2和O-66均提高了种子发芽率和发芽势,其中添加O-66处理发芽率和发芽势...
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Published in | Guanʻgai paishui xuebao Vol. 42; no. 7; pp. 10 - 59 |
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Main Authors | , , , , |
Format | Journal Article |
Language | Chinese |
Published |
Xinxiang City
Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
01.07.2023
内蒙古农业大学农学院,呼和浩特010019 |
Subjects | |
Online Access | Get full text |
ISSN | 1672-3317 |
DOI | 10.13522/j.cnki.ggps.2022697 |
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Abstract | 【目的】探讨外源内生真菌对干旱胁迫下燕麦种子萌发和幼苗生长的影响。【方法】以燕麦(Avena sativa L.)为研究对象,设正常水分处理(WW)和12%PEG-6000模拟干旱胁迫(HD)2个水分处理,分别添加Czapek培养基(CK)、外源内生真菌O-2(Fusarium equiseti)和O-66(Alternaria pomicola),分析干旱胁迫下外源内生真菌对种子发芽、幼苗生长、根系结构和生理特性的影响。【结果】外源内生真菌O-2、O-66均能在燕麦根中检测到。干旱胁迫显著抑制了种子的萌发,内生真菌O-2和O-66均提高了种子发芽率和发芽势,其中添加O-66处理发芽率和发芽势较CK显著增加了44.68%和41.18%。内生真菌显著促进胚根和胚芽的伸长,分别是CK的1.15~1.36倍和1.18~1.42倍。水培试验中,干旱胁迫下内生真菌均提高了燕麦幼苗的株高、干物质积累量和根系指标,其中添加O-66处理的株高和冠层干质量增加了23.67%和39.58%,根干质量、根系总长度、根系投影面积、根系总表面积、根系总体积和根尖数分别增加了33.72%、20.40%、35.47%、31.84%、36.94%和59.24%。与CK相比,干旱胁迫下内生真菌处理的燕麦根系活力显著提高了15.34%~23.54%,SOD、POD和CAT分别提高了25.97%~30.48%、14.26%~20.47%和37.46%~45.72%,MDA量降低了9.27%~10.33%。【结论】外源内生真菌能显著缓解干旱胁迫对燕麦种子及幼苗的伤害,增强植株耐旱性,促进燕麦生长,其中内生真菌O-66的抗旱效果较为明显。 |
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AbstractList | S512.6; [目的]探讨外源内生真菌对干旱胁迫下燕麦种子萌发和幼苗生长的影响.[方法]以燕麦(Avena sativa L.)为研究对象,设正常水分处理(WW)和12%PEG-6000模拟干旱胁迫(HD)2个水分处理,分别添加Czapek培养基(CK)、外源内生真菌O-2(Fusarium equiseti)和O-66(Alternaria pomicola),分析干旱胁迫下外源内生真菌对种子发芽、幼苗生长、根系结构和生理特性的影响.[结果]外源内生真菌O-2、O-66均能在燕麦根中检测到.干旱胁迫显著抑制了种子的萌发,内生真菌O-2和O-66均提高了种子发芽率和发芽势,其中添加O-66处理发芽率和发芽势较CK显著增加了 44.68%和41.18%.内生真菌显著促进胚根和胚芽的伸长,分别是CK的1.15~1.36倍和1.18~1.42倍.水培试验中,干旱胁迫下内生真菌均提高了燕麦幼苗的株高、干物质积累量和根系指标,其中添加O-66处理的株高和冠层干质量增加了 23.67%和39.58%,根干质量、根系总长度、根系投影面积、根系总表面积、根系总体积和根尖数分别增加了 33.72%、20.40%、35.47%、31.84%、36.94%和59.24%.与CK相比,干旱胁迫下内生真菌处理的燕麦根系活力显著提高了 15.34%~23.54%,SOD、POD和CAT分别提高了 25.97%~30.48%、14.26%~20.47%和37.46%~45.72%,MDA量降低了 9.27%~10.33%.[结论]外源内生真菌能显著缓解干旱胁迫对燕麦种子及幼苗的伤害,增强植株耐旱性,促进燕麦生长,其中内生真菌O-66的抗旱效果较为明显. 【目的】探讨外源内生真菌对干旱胁迫下燕麦种子萌发和幼苗生长的影响。【方法】以燕麦(Avena sativa L.)为研究对象,设正常水分处理(WW)和12%PEG-6000模拟干旱胁迫(HD)2个水分处理,分别添加Czapek培养基(CK)、外源内生真菌O-2(Fusarium equiseti)和O-66(Alternaria pomicola),分析干旱胁迫下外源内生真菌对种子发芽、幼苗生长、根系结构和生理特性的影响。【结果】外源内生真菌O-2、O-66均能在燕麦根中检测到。干旱胁迫显著抑制了种子的萌发,内生真菌O-2和O-66均提高了种子发芽率和发芽势,其中添加O-66处理发芽率和发芽势较CK显著增加了44.68%和41.18%。内生真菌显著促进胚根和胚芽的伸长,分别是CK的1.15~1.36倍和1.18~1.42倍。水培试验中,干旱胁迫下内生真菌均提高了燕麦幼苗的株高、干物质积累量和根系指标,其中添加O-66处理的株高和冠层干质量增加了23.67%和39.58%,根干质量、根系总长度、根系投影面积、根系总表面积、根系总体积和根尖数分别增加了33.72%、20.40%、35.47%、31.84%、36.94%和59.24%。与CK相比,干旱胁迫下内生真菌处理的燕麦根系活力显著提高了15.34%~23.54%,SOD、POD和CAT分别提高了25.97%~30.48%、14.26%~20.47%和37.46%~45.72%,MDA量降低了9.27%~10.33%。【结论】外源内生真菌能显著缓解干旱胁迫对燕麦种子及幼苗的伤害,增强植株耐旱性,促进燕麦生长,其中内生真菌O-66的抗旱效果较为明显。 |
Author | HAN, Xue GUO Yunfei LI, Xiaoting LI, Lijun ZHANG, Yongping |
AuthorAffiliation | 内蒙古农业大学农学院,呼和浩特010019 |
AuthorAffiliation_xml | – name: 内蒙古农业大学农学院,呼和浩特010019 |
Author_FL | LI Lijun GUO Yunfei LI Xiaoting HAN Xue ZHANG Yongping |
Author_FL_xml | – sequence: 1 fullname: LI Xiaoting – sequence: 2 fullname: LI Lijun – sequence: 3 fullname: ZHANG Yongping – sequence: 4 fullname: GUO Yunfei – sequence: 5 fullname: HAN Xue |
Author_xml | – sequence: 1 givenname: Xiaoting surname: LI fullname: LI, Xiaoting – sequence: 2 givenname: Lijun surname: LI fullname: LI, Lijun – sequence: 3 givenname: Yongping surname: ZHANG fullname: ZHANG, Yongping – sequence: 4 fullname: GUO Yunfei – sequence: 5 givenname: Xue surname: HAN fullname: HAN, Xue |
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Copyright | 2023. This work is published under https://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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Snippet | 【目的】探讨外源内生真菌对干旱胁迫下燕麦种子萌发和幼苗生长的影响。【方法】以燕麦(Avena sativa L.)为研究对象,设正常水分处理(WW)和12%PEG-6000模拟干旱胁迫(HD)2... S512.6; [目的]探讨外源内生真菌对干旱胁迫下燕麦种子萌发和幼苗生长的影响.[方法]以燕麦(Avena sativa L.)为研究对象,设正常水分处理(WW)和12%PEG-6000模拟干旱胁... |
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SubjectTerms | Alternaria Area Avena sativa Crop growth Drinking water Drought Dry matter Dry weight Endophytes Feasibility studies Fungi Fusarium Fusarium equiseti Germination Hydroponics Inoculation Oxidative stress Roots Seed germination Seedlings Seeds Water stress |
Title | 干旱胁迫下外源内生真菌对燕麦种子萌发及幼苗生长的影响 |
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