Exogenous application of brassinolide can alter morphological and physiological traits of Leymus chinensis (Trin.) Tzvelev under room and high temperatures

Plant growth regulating substances are involved in the physiological and metabolic processes of plants and enable them to cope with numerous environmental stresses. The effect of exogenously applied brassinolide (BR) with various concentrations (0.01, 0.1, and 1.0 mg L-1) was studied on morphologica...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Niu,Jian-hang, Ahmad Anjum,Shakeel, Wang,Ran, Li,Jin-huan, Liu,Mei-ru, Song,Ji-xuan, Zohaib,Ali, Lv,Jun, Wang,San-gen, Zong,Xue-feng
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2016
Materias:	Antioxidants brassinolide growth high temperature Leymus chinensis
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000100004
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-58392016000100004
record_format	dspace
spelling	oai:scielo:S0718-583920160001000042018-10-01Exogenous application of brassinolide can alter morphological and physiological traits of Leymus chinensis (Trin.) Tzvelev under room and high temperaturesNiu,Jian-hangAhmad Anjum,ShakeelWang,RanLi,Jin-huanLiu,Mei-ruSong,Ji-xuanZohaib,AliLv,JunWang,San-genZong,Xue-feng Antioxidants brassinolide growth high temperature Leymus chinensis Plant growth regulating substances are involved in the physiological and metabolic processes of plants and enable them to cope with numerous environmental stresses. The effect of exogenously applied brassinolide (BR) with various concentrations (0.01, 0.1, and 1.0 mg L-1) was studied on morphological and physiological traits of Leymus chinensis (Trin.) Tzvelev under room and high temperatures in pots. The experimental results revealed that high temperature stress substantially perturbed growth, photosynthetic pigments, and root activity of L. chinensis; however, the deleterious effects of high temperature were partially ameliorated by the foliar application of BR. Compared to room temperature, high temperature stress decreased the plant height, leaf area, plant fresh and dry weight, chlorophyll a and b content, chlorophyll a/b ratio as well as root activity, while exacerbated the membrane damage as indicated by enhanced production of malondialdehyde (MDA). Accumulation of proline content, soluble protein and sugar content in L. chinensis improved by heat stress, compared with normal temperature; application of BR further improved their production thus aiding in the attainment of tolerance against heat stress. Elevated levels of antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX), and glutathione reductase (GR) were observed under heat stress compared to room temperature, however, application of BR further proved beneficial in this regard. Our results indicated that BR could improve the growth and development of L. chinensis by enhancing the biosynthesis of photosynthetic pigments, osmolytes and antioxidant enzymes system in plants under both room and high temperature.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.76 n.1 20162016-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000100004en10.4067/S0718-58392016000100004
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Antioxidants brassinolide growth high temperature Leymus chinensis
spellingShingle	Antioxidants brassinolide growth high temperature Leymus chinensis Niu,Jian-hang Ahmad Anjum,Shakeel Wang,Ran Li,Jin-huan Liu,Mei-ru Song,Ji-xuan Zohaib,Ali Lv,Jun Wang,San-gen Zong,Xue-feng Exogenous application of brassinolide can alter morphological and physiological traits of Leymus chinensis (Trin.) Tzvelev under room and high temperatures
description	Plant growth regulating substances are involved in the physiological and metabolic processes of plants and enable them to cope with numerous environmental stresses. The effect of exogenously applied brassinolide (BR) with various concentrations (0.01, 0.1, and 1.0 mg L-1) was studied on morphological and physiological traits of Leymus chinensis (Trin.) Tzvelev under room and high temperatures in pots. The experimental results revealed that high temperature stress substantially perturbed growth, photosynthetic pigments, and root activity of L. chinensis; however, the deleterious effects of high temperature were partially ameliorated by the foliar application of BR. Compared to room temperature, high temperature stress decreased the plant height, leaf area, plant fresh and dry weight, chlorophyll a and b content, chlorophyll a/b ratio as well as root activity, while exacerbated the membrane damage as indicated by enhanced production of malondialdehyde (MDA). Accumulation of proline content, soluble protein and sugar content in L. chinensis improved by heat stress, compared with normal temperature; application of BR further improved their production thus aiding in the attainment of tolerance against heat stress. Elevated levels of antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX), and glutathione reductase (GR) were observed under heat stress compared to room temperature, however, application of BR further proved beneficial in this regard. Our results indicated that BR could improve the growth and development of L. chinensis by enhancing the biosynthesis of photosynthetic pigments, osmolytes and antioxidant enzymes system in plants under both room and high temperature.
author	Niu,Jian-hang Ahmad Anjum,Shakeel Wang,Ran Li,Jin-huan Liu,Mei-ru Song,Ji-xuan Zohaib,Ali Lv,Jun Wang,San-gen Zong,Xue-feng
author_facet	Niu,Jian-hang Ahmad Anjum,Shakeel Wang,Ran Li,Jin-huan Liu,Mei-ru Song,Ji-xuan Zohaib,Ali Lv,Jun Wang,San-gen Zong,Xue-feng
author_sort	Niu,Jian-hang
title	Exogenous application of brassinolide can alter morphological and physiological traits of Leymus chinensis (Trin.) Tzvelev under room and high temperatures
title_short	Exogenous application of brassinolide can alter morphological and physiological traits of Leymus chinensis (Trin.) Tzvelev under room and high temperatures
title_full	Exogenous application of brassinolide can alter morphological and physiological traits of Leymus chinensis (Trin.) Tzvelev under room and high temperatures
title_fullStr	Exogenous application of brassinolide can alter morphological and physiological traits of Leymus chinensis (Trin.) Tzvelev under room and high temperatures
title_full_unstemmed	Exogenous application of brassinolide can alter morphological and physiological traits of Leymus chinensis (Trin.) Tzvelev under room and high temperatures
title_sort	exogenous application of brassinolide can alter morphological and physiological traits of leymus chinensis (trin.) tzvelev under room and high temperatures
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000100004
work_keys_str_mv	AT niujianhang exogenousapplicationofbrassinolidecanaltermorphologicalandphysiologicaltraitsofleymuschinensistrintzvelevunderroomandhightemperatures AT ahmadanjumshakeel exogenousapplicationofbrassinolidecanaltermorphologicalandphysiologicaltraitsofleymuschinensistrintzvelevunderroomandhightemperatures AT wangran exogenousapplicationofbrassinolidecanaltermorphologicalandphysiologicaltraitsofleymuschinensistrintzvelevunderroomandhightemperatures AT lijinhuan exogenousapplicationofbrassinolidecanaltermorphologicalandphysiologicaltraitsofleymuschinensistrintzvelevunderroomandhightemperatures AT liumeiru exogenousapplicationofbrassinolidecanaltermorphologicalandphysiologicaltraitsofleymuschinensistrintzvelevunderroomandhightemperatures AT songjixuan exogenousapplicationofbrassinolidecanaltermorphologicalandphysiologicaltraitsofleymuschinensistrintzvelevunderroomandhightemperatures AT zohaibali exogenousapplicationofbrassinolidecanaltermorphologicalandphysiologicaltraitsofleymuschinensistrintzvelevunderroomandhightemperatures AT lvjun exogenousapplicationofbrassinolidecanaltermorphologicalandphysiologicaltraitsofleymuschinensistrintzvelevunderroomandhightemperatures AT wangsangen exogenousapplicationofbrassinolidecanaltermorphologicalandphysiologicaltraitsofleymuschinensistrintzvelevunderroomandhightemperatures AT zongxuefeng exogenousapplicationofbrassinolidecanaltermorphologicalandphysiologicaltraitsofleymuschinensistrintzvelevunderroomandhightemperatures
_version_	1714205355316084736

Exogenous application of brassinolide can alter morphological and physiological traits of Leymus chinensis (Trin.) Tzvelev under room and high temperatures

Ejemplares similares