Foliar application of methyl jasmonate induced physio-hormonal changes in Pisum sativum under diverse temperature regimes

Copyright © 2015 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 96(2015) vom: 16. Nov., Seite 406-16
1. Verfasser: Shahzad, Raheem (VerfasserIn)
Weitere Verfasser: Waqas, Muhammad, Khan, Abdul Latif, Hamayun, Muhammad, Kang, Sang-Mo, Lee, In-Jung
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Abiotic factors Biotic factors Global climate change Growth and defense tradeoff Hormonal regulation MeJA Plant breeding Stress mehr... Acetates Cyclopentanes Oxylipins Plant Growth Regulators methyl jasmonate 900N171A0F
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245 1 0 |a Foliar application of methyl jasmonate induced physio-hormonal changes in Pisum sativum under diverse temperature regimes 
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520 |a Copyright © 2015 Elsevier Masson SAS. All rights reserved. 
520 |a Global climate change brings with it unwarranted shifts in both abiotic (heat stress, cold stress, wind, precipitation) and biotic (pathogens, pests) environmental factors, thus posing a threat to agricultural productivity across the world. In plants, lodging due to storms or herbivory causes wounding stress and consequently enhances endogenous jasmonates. In response, the plant growth is arrested as plant defense is prioritized. We pre-treated pea plants with elevated methyl jasmonate (MeJA) levels i.e. 50 μM, 100 μM and 200 μM under controlled growth chamber conditions. The pre-treated plants were then kept at 40 °C (heat stress--HS), 4 °C (cold stress--CS) and 20 °C (optimum/control temperature--OT) for 72 h. The effect of such treatments on plant growth attributes, photosynthesis, stomatal conductance, cell death rate, and regulation of endogenous hormones were observed. Elevated MeJA application hindered plant growth attributes under HS, CS and OT conditions. Moreover, elevated MeJA levels lowered the rate of photosynthesis and stomatal conductance, induced stomatal closure, caused higher cells mortality in leaves under HS, CS, and OT conditions. Endogenous ABA contents significantly declined in all MeJA treatments under HS and OT, but increased under CS conditions. Exogenous MeJA enhanced endogenous jasmonic acid contents of pea plants, but altered endogenous salicylic acid contents under varying temperatures. Current study shows that higher concentrations of exogenous MeJA strengthen plant defense mechanism by hindering plant growth under stress conditions 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Abiotic factors 
650 4 |a Biotic factors 
650 4 |a Global climate change 
650 4 |a Growth and defense tradeoff 
650 4 |a Hormonal regulation 
650 4 |a MeJA 
650 4 |a Plant breeding 
650 4 |a Stress 
650 7 |a Acetates  |2 NLM 
650 7 |a Cyclopentanes  |2 NLM 
650 7 |a Oxylipins  |2 NLM 
650 7 |a Plant Growth Regulators  |2 NLM 
650 7 |a methyl jasmonate  |2 NLM 
650 7 |a 900N171A0F  |2 NLM 
700 1 |a Waqas, Muhammad  |e verfasserin  |4 aut 
700 1 |a Khan, Abdul Latif  |e verfasserin  |4 aut 
700 1 |a Hamayun, Muhammad  |e verfasserin  |4 aut 
700 1 |a Kang, Sang-Mo  |e verfasserin  |4 aut 
700 1 |a Lee, In-Jung  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Plant physiology and biochemistry : PPB  |d 1991  |g 96(2015) vom: 16. Nov., Seite 406-16  |w (DE-627)NLM098178261  |x 1873-2690  |7 nnns 
773 1 8 |g volume:96  |g year:2015  |g day:16  |g month:11  |g pages:406-16 
856 4 0 |u http://dx.doi.org/10.1016/j.plaphy.2015.08.020  |3 Volltext 
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