Effect of picloram herbicide on physiological responses of Eupatorium adenophorum Spreng

Eupatorium adenophorum Spreng., a major invasive weed in southwestern China, has caused great economic losses. In order to find a new herbicide to control E. adenophorum, experiments were conducted to study its physiological and biochemical responses to low and high doses of picloram herbicide (4-am...

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Autores principales:	Liu,Xiaowen, Qi,Chengmei, Wang,Zongcheng, Li,Yuan, Wang,Qiuxia, Guo,Meixia, Cao,Aocheng
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2014
Materias:	Picloram Eupatorium adenophorum response of physiology and biochemistry
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000400010
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spelling	oai:scielo:S0718-583920140004000102018-10-01Effect of picloram herbicide on physiological responses of Eupatorium adenophorum SprengLiu,XiaowenQi,ChengmeiWang,ZongchengLi,YuanWang,QiuxiaGuo,MeixiaCao,Aocheng Picloram Eupatorium adenophorum response of physiology and biochemistry Eupatorium adenophorum Spreng., a major invasive weed in southwestern China, has caused great economic losses. In order to find a new herbicide to control E. adenophorum, experiments were conducted to study its physiological and biochemical responses to low and high doses of picloram herbicide (4-amino-3,5,6-trichloropyridine-2-carboxylic acid). Electrolyte leakage, malondialdehyde, and free proline were stimulated by picloram, showing a remarkably increase (p < 0.05) with high herbicide concentration (60, 120, and 240 g ai ha-1). The treated plants exhibited lower osmotic adjustment capacity, high dosage lipid peroxide levels and more free-proline accumulation. It was found that low doses (12 and 24 g ai ha-1) of picloram initially increased catalase, peroxidase, superoxide dismutases and protein, but these indicators decreased (p < 0.05) with the increase of treating time (after 3 d) and dose (120 and 240 g ai ha-1). In addition, the structures of chloroplasts and mitochondria were seriously deformed. These results indicated E. adenophorum can improve its herbicide-tolerance by increasing the antioxidative system activity at the initial period of low picloram stress. However, this protective function disappeared with increasing of treating time and picloram dosage. Eupatorium adenophorum responded differently to low and high concentrations of picloram and ultrastructural changes are an important cause of death in E. adenophorum.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.74 n.4 20142014-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000400010en10.4067/S0718-58392014000400010
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Picloram Eupatorium adenophorum response of physiology and biochemistry
spellingShingle	Picloram Eupatorium adenophorum response of physiology and biochemistry Liu,Xiaowen Qi,Chengmei Wang,Zongcheng Li,Yuan Wang,Qiuxia Guo,Meixia Cao,Aocheng Effect of picloram herbicide on physiological responses of Eupatorium adenophorum Spreng
description	Eupatorium adenophorum Spreng., a major invasive weed in southwestern China, has caused great economic losses. In order to find a new herbicide to control E. adenophorum, experiments were conducted to study its physiological and biochemical responses to low and high doses of picloram herbicide (4-amino-3,5,6-trichloropyridine-2-carboxylic acid). Electrolyte leakage, malondialdehyde, and free proline were stimulated by picloram, showing a remarkably increase (p < 0.05) with high herbicide concentration (60, 120, and 240 g ai ha-1). The treated plants exhibited lower osmotic adjustment capacity, high dosage lipid peroxide levels and more free-proline accumulation. It was found that low doses (12 and 24 g ai ha-1) of picloram initially increased catalase, peroxidase, superoxide dismutases and protein, but these indicators decreased (p < 0.05) with the increase of treating time (after 3 d) and dose (120 and 240 g ai ha-1). In addition, the structures of chloroplasts and mitochondria were seriously deformed. These results indicated E. adenophorum can improve its herbicide-tolerance by increasing the antioxidative system activity at the initial period of low picloram stress. However, this protective function disappeared with increasing of treating time and picloram dosage. Eupatorium adenophorum responded differently to low and high concentrations of picloram and ultrastructural changes are an important cause of death in E. adenophorum.
author	Liu,Xiaowen Qi,Chengmei Wang,Zongcheng Li,Yuan Wang,Qiuxia Guo,Meixia Cao,Aocheng
author_facet	Liu,Xiaowen Qi,Chengmei Wang,Zongcheng Li,Yuan Wang,Qiuxia Guo,Meixia Cao,Aocheng
author_sort	Liu,Xiaowen
title	Effect of picloram herbicide on physiological responses of Eupatorium adenophorum Spreng
title_short	Effect of picloram herbicide on physiological responses of Eupatorium adenophorum Spreng
title_full	Effect of picloram herbicide on physiological responses of Eupatorium adenophorum Spreng
title_fullStr	Effect of picloram herbicide on physiological responses of Eupatorium adenophorum Spreng
title_full_unstemmed	Effect of picloram herbicide on physiological responses of Eupatorium adenophorum Spreng
title_sort	effect of picloram herbicide on physiological responses of eupatorium adenophorum spreng
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000400010
work_keys_str_mv	AT liuxiaowen effectofpicloramherbicideonphysiologicalresponsesofeupatoriumadenophorumspreng AT qichengmei effectofpicloramherbicideonphysiologicalresponsesofeupatoriumadenophorumspreng AT wangzongcheng effectofpicloramherbicideonphysiologicalresponsesofeupatoriumadenophorumspreng AT liyuan effectofpicloramherbicideonphysiologicalresponsesofeupatoriumadenophorumspreng AT wangqiuxia effectofpicloramherbicideonphysiologicalresponsesofeupatoriumadenophorumspreng AT guomeixia effectofpicloramherbicideonphysiologicalresponsesofeupatoriumadenophorumspreng AT caoaocheng effectofpicloramherbicideonphysiologicalresponsesofeupatoriumadenophorumspreng
_version_	1714205340536406016

Effect of picloram herbicide on physiological responses of Eupatorium adenophorum Spreng

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