The alternative pathway in cucumber seedlings under low temperature stress was enhanced by salicylic acid

Tao, Lei; Hong, Feng; Sun, Xin; Dai, Qilin; Zhang, Fan; Huang, Liang; Lin, Honghui

doi:10.1007/s10725-009-9416-6

Cited by 67 publications

(26 citation statements)

References 54 publications

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“…For example, exogenous SA treatment could improve chilling tolerance in maize (Janda et al 1999;Horvath et al 2002), tomato (Ding et al 2002), banana (Kang et al 2003), winter wheat (Tasgin et al 2006;Esim and Atici 2015), guayule (Sundar et al 2004), red globe grape (Li et al 2005), Brassica juncea (Setia et al 2006), radish (Biao, 2006), cucumber (Xia et al 2007;Lei et al 2010), grass (Wang et al 2009a) and barley (Mutlu et al 2013a(Mutlu et al , 2013b. Recently, some researchers carried out on winter wheat (Tasgin et al 2006) and watermelon (Yang et al 2008) demonstrated that exogenous SA treatment could be involved in cold tolerance by regulating the activities of antioxidant enzymes.…”

Section: Introductionmentioning

confidence: 99%

Exogenous salicylic acid alleviates cold damage by regulating antioxidative system in two barley (Hordeum vulgareL.) cultivars

Mutlu

Atıcı

Nalbantoğlu

et al. 2016

Frontiers in Life Science

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In this work, the time-dependent effect of exogenous salicylic acid (SA) applied before cold stress was investigated on the regulation of antioxidative respond mechanisms in two barley (Hordeum vulgare L.) cultivars (Akhisar and Tokak) differed in cold tolerance. SA (0.1 mM) was applied to 7-days old barley seedlings growing under control conditions (20/18°C). After this application, the seedlings were transferred to cold conditions (7/5°C) at different times (7, 14, 21 and 28 days) for 3 days. Then, the contents of malondialdehyde (MDA), hydrogen peroxide (H 2 O 2 ) and the activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT) and peroxidase (POX) were determined in the leaves (control, cold and SA + cold) from the seedlings harvested at 10, 17, 24 and 31 days. Moreover, the effect of cold stress was evaluated on the endogenous SA level at the both cultivars by comparing to control plants. The MDA content increased in the cold treatment while it decreased in the SA treatment at all the days studied at the both cultivars. The SA + cold treatment could have a variable effect on H 2 O 2 content at the tolerant barley (Tokak) while decreased its content at the sensitive cultivar (Akhisar). The SA + cold treatment could increase the activities of POX and SOD at both cultivars, but it increased the CAT activity at the tolerant cultivar while decreased at the sensitive cultivar. In addition, the content of endogenous SA was decreased by cold stress at all the days studied at the barley cultivars as compared to control plants. The results show that the SA treatment could be effective on the regulation of the parameters studied at cold conditions until 31 days after SA application, and the importance of exogenous SA treatment before cold stress. It was concluded that exogenous and endogenous SA could play an ameliorating role on cold tolerance by regulating reactive oxygen species and the activities of antioxidative enzymes in both cold-sensitive and cold-tolerant cultivars of barley. ARTICLE HISTORY

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Section: Introductionmentioning

confidence: 99%

Exogenous salicylic acid alleviates cold damage by regulating antioxidative system in two barley (Hordeum vulgareL.) cultivars

Mutlu

Atıcı

Nalbantoğlu

et al. 2016

Frontiers in Life Science

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“…Pretreatment of hybrid corn seeds with exogenous SA considerably improved seedling emergence, root and shoot length, and seedling fresh and dry weight, all compared with the controls, both at optimal temperatures and under cold stress temperatures (Farooq et al 2008). Finally, exogenously applied SA alleviated the cold stress effect on growth of cucumber seedlings (Lei et al 2010). Thus, there is a plethora of examples where a pre-treatment with exogenous SA has reduced the negative effects of cold stress on plant growth and metabolism.…”

Section: Temperature and Endogenous Salicylic Acid Levelsmentioning

confidence: 91%

Interplay Between Environmental Signals and Endogenous Salicylic Acid Concentration

et al. 2013

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Salicylic acid (SA), a naturally occurring plant hormone, is primarily associated with the induction or activation of defence mechanism responses by higher plants when they are attacked by pathogens. Attack of these plants by pathogens rapidly triggers changes in a wide range of the plant's metabolic pathways which in turn are followed by modifications in the plant's growth and development. There are a number of references in the recent literature where SA was applied to plants that are being subjected to changes in environmental signaling without the involvement of pathogens. In these examples, SA appears to be functioning as a hormone. Significant changes (usually positive) in shoot growth and photosynthesis occur when SA is applied at low concentrations to plants subjected to environmental stresses. In this review we focused on the interplay between changes in endogenous SA concentrations and key environmental signals, i.e. light intensity and quality, temperature, soil water availability and carbon dioxide levels. In doing so, we evaluated the concept that endogenous SA functions as an important signaling hormone in the plant's growth response to a changing environment, even in the absence of pathogen attack.

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“…For light and dark treatments, soybean plants were divided into two groups and grown under continuous light or in complete darkness for 12 h, respectively, in growth chambers. Different organs, including roots, stems, leaves, flowers and pods were collected to extract total RNA as described by Lei et al (2010).…”

Section: Methodsmentioning

confidence: 99%

Identification and Characterization of Two Paralogous Plastid Terminal Oxidase Genes in Soybean

Sun¹,

Lei²,

Du³

et al. 2015

IJAB

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Plastid terminal oxidase (PTOX) is a plastoquinol oxidase, which plays several important roles in plants. Previous studies suggested that PTOX is encoded by a single gene with only one copy in higher plants. Here we report the identification of two possible paralogous PTOX genes on different chromosomes of soybean, both of which are highly homologous to known PTOX genes in other species. These two paralogs have quite different introns and nearly the same exons and were predicted to encode membrane protein with chloroplast transit peptide. The deduced PTOX protein encoded by both paralogs were proposed to be functional, since the existence of highly conserved amino acid sites necessary for a typical PTOX, including six iron-binding sites and Exon 8 domain. Moreover, soybean PTOX also exhibit clear sequence similarity to alternative oxidase (AOX). Organ-specific expression analysis showed high transcript levels of soybean PTOX in stems, leaves and flowers, while the levels in pods and roots were relatively low. In addition, a light-inducible character was also suggested for soybean PTOX in the present study.

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The alternative pathway in cucumber seedlings under low temperature stress was enhanced by salicylic acid

Cited by 67 publications

References 54 publications

Exogenous salicylic acid alleviates cold damage by regulating antioxidative system in two barley (Hordeum vulgareL.) cultivars

Exogenous salicylic acid alleviates cold damage by regulating antioxidative system in two barley (Hordeum vulgareL.) cultivars

Interplay Between Environmental Signals and Endogenous Salicylic Acid Concentration

Identification and Characterization of Two Paralogous Plastid Terminal Oxidase Genes in Soybean

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