Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2015.04.011 |
Photoprotective response to chilling differs among high and low latitude Larrea divaricata grown in a common garden | |
Medeiros, Juliana S.1; Begaye, Ashlee2; Hanson, David T.3; Logan, Barry4; Pockman, William T.3 | |
通讯作者 | Medeiros, Juliana S. |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
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ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2015 |
卷号 | 120页码:51-54 |
英文摘要 | Cold temperatures can cause imbalances between light absorption and photosynthetic light utilization, with potential negative consequences for leaf function. Consequently, in response to chilling evergreens typically exhibit increased total pools of photoprotective xanthophyll cycle pigments and greater nocturnal retention of energy dissipating forms. This may preclude opportunistic responses to transient warmer temperatures, however, and become less beneficial as cold spells become rare and/or short-lived, for example, at the low latitude edges of warm deserts. Thus, we hypothesized intrinsic differences in the photoprotective response to chilling between low and high latitude populations of the widespread warm desert evergreen shrub Larrea divaricata. We determined leaf pigment compositions for high and low latitude plants grown in a common garden before and after 7 days of chilling (12/1 degrees C day/night). High and low latitude plants differed in pigment composition before chilling, and plants from both populations adjusted pigment compositions in response to chilling. Chilling, however, induced significantly greater nocturnal retention of xanthophyll cycle pigments as zeaxanthin and antheraxanthin in high latitude plants compared to those from low latitude. These data provide strong evidence for intrinsic differences between high and low latitude populations in their photoprotective responses to both the greenhouse growth environment and to chilling. (C) 2015 Elsevier Ltd. All rights reserved. |
英文关键词 | Monte Desert Warm desert evergreens Xanthophyll cycle pigments |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000356737400007 |
WOS关键词 | ENERGY-DISSIPATION ; XANTHOPHYLL CYCLE ; SEASONAL-CHANGES ; LUTEIN ; PHOTOSYNTHESIS ; ZEAXANTHIN ; RESOLUTION ; CLIMATE |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/188342 |
作者单位 | 1.Holden Arboretum, Kirtland, OH 44094 USA; 2.San Juan Coll, Farmington, NM 87402 USA; 3.Univ New Mexico, Albuquerque, NM 87131 USA; 4.Bowdoin Coll, Brunswick, ME 04011 USA |
推荐引用方式 GB/T 7714 | Medeiros, Juliana S.,Begaye, Ashlee,Hanson, David T.,et al. Photoprotective response to chilling differs among high and low latitude Larrea divaricata grown in a common garden[J],2015,120:51-54. |
APA | Medeiros, Juliana S.,Begaye, Ashlee,Hanson, David T.,Logan, Barry,&Pockman, William T..(2015).Photoprotective response to chilling differs among high and low latitude Larrea divaricata grown in a common garden.JOURNAL OF ARID ENVIRONMENTS,120,51-54. |
MLA | Medeiros, Juliana S.,et al."Photoprotective response to chilling differs among high and low latitude Larrea divaricata grown in a common garden".JOURNAL OF ARID ENVIRONMENTS 120(2015):51-54. |
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