Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.plaphy.2016.03.014 |
Phenolic compounds as indicators of drought resistance in shrubs from. Patagonian shrublands (Argentina) | |
Celeste Varela, M.1; Arslan, Idris2; Reginato, Mariana A.1; Cenzano, Ana M.3; Virginia Luna, M.1 | |
通讯作者 | Virginia Luna, M. |
来源期刊 | PLANT PHYSIOLOGY AND BIOCHEMISTRY
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ISSN | 0981-9428 |
出版年 | 2016 |
卷号 | 104页码:81-91 |
英文摘要 | Plants exposed to drought stress, as usually occurs in Patagonian shrublands, have developed different strategies to avoid or tolerate the lack of water during their development. Production of phenolic compounds (or polyphenols) is one of the strategies used by some native species of adverse environments to avoid the oxidative damage caused by drought. In the present study the relationship between phenolic compounds content, water availability and oxidative damage were evaluated in two native shrubs: Larrea divaricata (evergreen) and Lycium chilense (deciduous) of Patagonian shrublands by their means and/or by multivariate analysis. Samples of both species were collected during the 4 seasons for the term of 1 year. Soil water content, relative water content, total phenols, flavonoids, flavonols, tartaric acid esters, fiavan-3-ols, proanthocyanidins, antioxidant capacity and lipid peroxidation were measured. According to statistical univariate analysis, L. divaricata showed high production of poly phenols along the year, with a phenolic compound synthesis enhanced during autumn (season of greatest drought), while L chilense has lower production of these compounds without variation between seasons. The variation in total phenols along the seasons is proportional to the antioxidant capacity and inversely proportional to lipid peroxidation. Multivariate analysis showed that, regardless their mechanism to face drought (avoidance or tolerance), both shrubs are well adapted to semi-arid regions and the phenolic compounds production is a strategy used by these species living in extreme environments. The identification of polyphenol compounds showed that L divaricata produces different types of flavonoids, particularly bond with sugars, while L chilense produces high amount of non-flavonoids compounds. Synthesis: These results suggest that flavonoid production and accumulation could be a useful indicator of drought tolerance in native species. (C) 2016 Elsevier Masson SAS. All rights reserved. |
英文关键词 | Plant development and life-history traits Ecophysiology Polyphenols Antioxidant capacity Lipid peroxidation Drought stress |
类型 | Article |
语种 | 英语 |
国家 | Argentina ; Turkey |
收录类别 | SCI-E |
WOS记录号 | WOS:000378360500009 |
WOS关键词 | PERENNIAL GRASSES ; MASS-SPECTROMETRY ; ARIDITY GRADIENT ; PLANT ; RESPONSES ; STRESS ; WATER ; STRATEGIES ; TRAITS ; POLYPHENOLS |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/195552 |
作者单位 | 1.Univ Nacl Rio Cuarto, Fac Cs Exactas Fis Quim & Nat, Lab Fisiol Vegetal, Rio Cuarto, Argentina; 2.Pamukkale Univ, Fac Technol, Biomed Engn, TR-20200 Denizli, Turkey; 3.Consejo Nacl Invest Cient & Tecn, Ctr Nacl Patagon, Inst Estudio Ecosistemas Continentales Patagon, Lab Ecofisiol & Bioquim Vegetal, Blvd Brown 2915, RA-9120 Puerto Madryn, Chubut, Argentina |
推荐引用方式 GB/T 7714 | Celeste Varela, M.,Arslan, Idris,Reginato, Mariana A.,et al. Phenolic compounds as indicators of drought resistance in shrubs from. Patagonian shrublands (Argentina)[J],2016,104:81-91. |
APA | Celeste Varela, M.,Arslan, Idris,Reginato, Mariana A.,Cenzano, Ana M.,&Virginia Luna, M..(2016).Phenolic compounds as indicators of drought resistance in shrubs from. Patagonian shrublands (Argentina).PLANT PHYSIOLOGY AND BIOCHEMISTRY,104,81-91. |
MLA | Celeste Varela, M.,et al."Phenolic compounds as indicators of drought resistance in shrubs from. Patagonian shrublands (Argentina)".PLANT PHYSIOLOGY AND BIOCHEMISTRY 104(2016):81-91. |
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