Volatile-organic compound changes in rose twigs consequent to infection with rose powdery mildew

ABSTRACT The chemical mechanisms involved in indirect plant-mediated interactions between insects and phytopathogenic fungi on the host plant are poorly understood. Fungus-induced changes in the volatile organic compound (VOC) contents of plants need to be elucidated to address this. Here, changes i...

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Autores principales:	Yang,Fazhong, Dong,Wenxia, Zhang,Xiuge, Li,Yunxian, Zhou,Shiping, Zhu,Guolei, Xiao,Chun
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2019
Materias:	Biomarker GC-MS hexadecanol induced plant defense Podosphaera pannosa Rosa chinensis semiochemicals volatile organic compound.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000400596
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spelling	oai:scielo:S0718-583920190004005962019-11-19Volatile-organic compound changes in rose twigs consequent to infection with rose powdery mildewYang,FazhongDong,WenxiaZhang,XiugeLi,YunxianZhou,ShipingZhu,GuoleiXiao,Chun Biomarker GC-MS hexadecanol induced plant defense Podosphaera pannosa Rosa chinensis semiochemicals volatile organic compound. ABSTRACT The chemical mechanisms involved in indirect plant-mediated interactions between insects and phytopathogenic fungi on the host plant are poorly understood. Fungus-induced changes in the volatile organic compound (VOC) contents of plants need to be elucidated to address this. Here, changes in VOCs in rose (Rosa chinensis Jacq.) leaves infected with rose powdery mildew (Podosphaera pannosa [Wallr.: Fr.[ de Bary) were studied. VOCs were collected from undamaged live leaves of healthy and infected intact rose plants by dynamic headspace adsorption and identified by GC-MS. VOCs were extracted using n-hexane, and 38 chemicals were found to be produced by P. pannosa. A total of 71 VOCs not produced by P. pannosa were produced to different degrees by infected and healthy plants, and 18 of these were produced only by infected plants. Principal component analysis of chromatographic data gave VOC profiles distinguishing between infected and healthy plants. Hexadecanol, octadecanol, tetradecanol, n-butyl hexadecanoate, and n-butyl stearate dominated the VOCs produced by infected plants. These chemicals can be used as markers for detecting mildew-infected rose plants even 4-7 d after infection before symptoms appear. Clear temporal changes in the concentrations of these five chemicals were found. The results improve our understanding of the chemical mechanisms involved in interactions between insects and phytopathogenic fungi.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.79 n.4 20192019-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000400596en10.4067/S0718-58392019000400596
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Biomarker GC-MS hexadecanol induced plant defense Podosphaera pannosa Rosa chinensis semiochemicals volatile organic compound.
spellingShingle	Biomarker GC-MS hexadecanol induced plant defense Podosphaera pannosa Rosa chinensis semiochemicals volatile organic compound. Yang,Fazhong Dong,Wenxia Zhang,Xiuge Li,Yunxian Zhou,Shiping Zhu,Guolei Xiao,Chun Volatile-organic compound changes in rose twigs consequent to infection with rose powdery mildew
description	ABSTRACT The chemical mechanisms involved in indirect plant-mediated interactions between insects and phytopathogenic fungi on the host plant are poorly understood. Fungus-induced changes in the volatile organic compound (VOC) contents of plants need to be elucidated to address this. Here, changes in VOCs in rose (Rosa chinensis Jacq.) leaves infected with rose powdery mildew (Podosphaera pannosa [Wallr.: Fr.[ de Bary) were studied. VOCs were collected from undamaged live leaves of healthy and infected intact rose plants by dynamic headspace adsorption and identified by GC-MS. VOCs were extracted using n-hexane, and 38 chemicals were found to be produced by P. pannosa. A total of 71 VOCs not produced by P. pannosa were produced to different degrees by infected and healthy plants, and 18 of these were produced only by infected plants. Principal component analysis of chromatographic data gave VOC profiles distinguishing between infected and healthy plants. Hexadecanol, octadecanol, tetradecanol, n-butyl hexadecanoate, and n-butyl stearate dominated the VOCs produced by infected plants. These chemicals can be used as markers for detecting mildew-infected rose plants even 4-7 d after infection before symptoms appear. Clear temporal changes in the concentrations of these five chemicals were found. The results improve our understanding of the chemical mechanisms involved in interactions between insects and phytopathogenic fungi.
author	Yang,Fazhong Dong,Wenxia Zhang,Xiuge Li,Yunxian Zhou,Shiping Zhu,Guolei Xiao,Chun
author_facet	Yang,Fazhong Dong,Wenxia Zhang,Xiuge Li,Yunxian Zhou,Shiping Zhu,Guolei Xiao,Chun
author_sort	Yang,Fazhong
title	Volatile-organic compound changes in rose twigs consequent to infection with rose powdery mildew
title_short	Volatile-organic compound changes in rose twigs consequent to infection with rose powdery mildew
title_full	Volatile-organic compound changes in rose twigs consequent to infection with rose powdery mildew
title_fullStr	Volatile-organic compound changes in rose twigs consequent to infection with rose powdery mildew
title_full_unstemmed	Volatile-organic compound changes in rose twigs consequent to infection with rose powdery mildew
title_sort	volatile-organic compound changes in rose twigs consequent to infection with rose powdery mildew
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000400596
work_keys_str_mv	AT yangfazhong volatileorganiccompoundchangesinrosetwigsconsequenttoinfectionwithrosepowderymildew AT dongwenxia volatileorganiccompoundchangesinrosetwigsconsequenttoinfectionwithrosepowderymildew AT zhangxiuge volatileorganiccompoundchangesinrosetwigsconsequenttoinfectionwithrosepowderymildew AT liyunxian volatileorganiccompoundchangesinrosetwigsconsequenttoinfectionwithrosepowderymildew AT zhoushiping volatileorganiccompoundchangesinrosetwigsconsequenttoinfectionwithrosepowderymildew AT zhuguolei volatileorganiccompoundchangesinrosetwigsconsequenttoinfectionwithrosepowderymildew AT xiaochun volatileorganiccompoundchangesinrosetwigsconsequenttoinfectionwithrosepowderymildew
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Volatile-organic compound changes in rose twigs consequent to infection with rose powdery mildew

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