Full Text:   <1261>

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CLC number: S476

On-line Access: 2015-12-04

Received: 2015-04-09

Revision Accepted: 2015-09-14

Crosschecked: 2015-11-16

Cited: 3

Clicked: 1549

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

In-Jung Lee

http://orcid.org/0000-0001-7154-4820

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Journal of Zhejiang University SCIENCE B 2015 Vol.16 No.12 P.1011-1018

http://doi.org/10.1631/jzus.B1500081


Mutualistic fungal endophytes produce phytohormones and organic acids that promote japonica rice plant growth under prolonged heat stress


Author(s):  Muhammad Waqas, Abdul Latif Khan, Raheem Shahzad, Ihsan Ullah, Abdur Rahim Khan, In-Jung Lee

Affiliation(s):  School of Applied Biosciences, Kyungpook National University, Daegu 702-701, Republic of Korea; more

Corresponding email(s):   ijlee@knu.ac.kr

Key Words:  Paecilomyces formosus LWL1, Plant-growth promotion, Heat-stress mitigation, Phytohormones, Organic acids, Endophytes


Muhammad Waqas, Abdul Latif Khan, Raheem Shahzad, Ihsan Ullah, Abdur Rahim Khan, In-Jung Lee. Mutualistic fungal endophytes produce phytohormones and organic acids that promote japonica rice plant growth under prolonged heat stress[J]. Journal of Zhejiang University Science B, 2015, 16(12): 1011-1018.

@article{title="Mutualistic fungal endophytes produce phytohormones and organic acids that promote japonica rice plant growth under prolonged heat stress",
author="Muhammad Waqas, Abdul Latif Khan, Raheem Shahzad, Ihsan Ullah, Abdur Rahim Khan, In-Jung Lee",
journal="Journal of Zhejiang University Science B",
volume="16",
number="12",
pages="1011-1018",
year="2015",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.B1500081"
}

%0 Journal Article
%T Mutualistic fungal endophytes produce phytohormones and organic acids that promote japonica rice plant growth under prolonged heat stress
%A Muhammad Waqas
%A Abdul Latif Khan
%A Raheem Shahzad
%A Ihsan Ullah
%A Abdur Rahim Khan
%A In-Jung Lee
%J Journal of Zhejiang University SCIENCE B
%V 16
%N 12
%P 1011-1018
%@ 1673-1581
%D 2015
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B1500081

TY - JOUR
T1 - Mutualistic fungal endophytes produce phytohormones and organic acids that promote japonica rice plant growth under prolonged heat stress
A1 - Muhammad Waqas
A1 - Abdul Latif Khan
A1 - Raheem Shahzad
A1 - Ihsan Ullah
A1 - Abdur Rahim Khan
A1 - In-Jung Lee
J0 - Journal of Zhejiang University Science B
VL - 16
IS - 12
SP - 1011
EP - 1018
%@ 1673-1581
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.B1500081


Abstract: 
This study identifies the potential role in heat-stress mitigation of phytohormones and other secondary metabolites produced by the endophytic fungus paecilomyces formosus LWL1 in japonica rice cultivar Dongjin. The japonica rice was grown in controlled chamber conditions with and without P. formosus LWL1 under no stress (NS) and prolonged heat stress (HS) conditions. Endophytic association under NS and HS conditions significantly improved plant growth attributes, such as plant height, fresh weight, dry weight, and chlorophyll content. Furthermore, P. formosus LWL1 protected the rice plants from HS compared with controls, indicated by the lower endogenous level of stress-signaling compounds such as abscisic acid (25.71%) and jasmonic acid (34.57%) and the increase in total protein content (18.76%–33.22%). Such fungal endophytes may be helpful for sustainable crop production under high environmental temperatures.

持续高温胁迫环境下内生菌产生植物激素和有机酸促进粳稻生长的研究

目的:研究在高温胁迫环境下内生菌(Paecilomyces formosus LWL1)对粳稻生长的影响。
创新点:首次探讨P. formosus LWL1产生的植物激素和有机酸在缓解粳稻热应激方面的作用。
方法:比较正常和高温胁迫两种环境下,P. formosus LWL1对Dongjin粳稻植株的生长状况及内源性脱落酸、茉莉酸和总蛋白水平变化的作用。
结论:内生菌在正常和高温胁迫条件下均能显著提高植物生长情况,包括株高、鲜重、干重和叶绿素含量。内生菌组的植株具有更低的内源性胁迫信号化合物水平及提升的总蛋白量,表明其具有保护粳稻的作用。这种内生菌可能有利于作物在高温环境下生长的耐受性。

关键词:拟青霉菌;促进植物生长;热应激缓和;植物激素;有机酸;植物内生菌

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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