Correlation between the Circadian Rhythm of Resistance to Extreme Temperatures and Changes in Fatty Acid Composition in Cotton Seedlings

Rikin, Arnon; Dillwith, Jack W.; Bergman, D. K.

doi:10.1104/pp.101.1.31

Cited by 71 publications

(37 citation statements)

References 13 publications

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“…Interestingly, cotton was found to be more tolerant of chilling stresses given during the dark phase than it was of those given during the light phase (Rikin et al, 1993). Further analysis indicated a correlation between the chilling-tolerant phase and changes in fatty acid composition (Rikin et al, 1993). Thus, the circadian clock appears to be regulating lipid content, which is likely to affect membrane structure.…”

Section: Temperature Stressesmentioning

confidence: 98%

Coordination of Plant Metabolism and Development by the Circadian Clock.

Kreps

Kay

1997

Plant Cell

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Section: Temperature Stressesmentioning

confidence: 98%

Coordination of Plant Metabolism and Development by the Circadian Clock.

Kreps

Kay

1997

Plant Cell

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“…Circadian rhythms in chilling and freezing tolerance have also been described for several plant species, including cotton (Gossypium hirsutum; Rikin et al, 1993) and soybean (Glycine max; Couderchet and Koukkari, 1987). In both these species, the clock regulates development of a low temperature-resistant phase that peaks at the end of the light phase.…”

mentioning

confidence: 93%

Low Temperature Induction of Arabidopsis CBF1, 2, and 3 Is Gated by the Circadian Clock

2005

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Exposing Arabidopsis (Arabidopsis thaliana) plants to low temperature results in rapid induction of CBF1, 2, and 3 (CBF1-3; also known as DREB1B, C, and A, respectively), which encode transcriptional activators that induce expression of a battery of genes that increase plant freezing and chilling tolerance. Recently, it has been shown that basal levels of CBF3 transcripts and those of certain CBF-regulated genes exhibit circadian cycling. Here, we further explored the regulation of CBF1-3 by the circadian clock. The results indicated that the extent to which CBF1-3 transcripts accumulated in response to low temperature was dependent on the time of day that the plants were exposed to low temperature and that this was regulated by the circadian clock. The highest and lowest levels of cold-induced CBF1-3 transcript accumulation occurred at 4 and 16 h after subjective dawn, respectively. An analysis of CBF2 promoter-reporter gene fusions indicated that this control included transcriptional regulation. In addition, the cold responsiveness of RAV1 and ZAT12, genes that are cold induced in parallel with CBF1-3, was also subject to circadian regulation. However, whereas the maximum level of cold-induced RAV1 transcript accumulation occurred at the same time of day as did CBF1-3 transcripts, that of ZAT12 was in reverse phase, i.e. the highest level of coldinduced ZAT12 transcript accumulation occurred 16 h after subjective dawn. These results indicate that cold-induced expression of CBF1-3, RAV1, and ZAT12 is gated by the circadian clock and suggest that this regulation likely occurs through at least two nonidentical (though potentially overlapping) signaling pathways.Many plants have the ability to sense low temperature and respond by activating mechanisms that lead to an increase in freezing tolerance, an adaptive response known as cold acclimation (Thomashow, 1999;Smallwood and Bowles, 2002). At present, the best understood genetic system that has a role in cold acclimation is the Arabidopsis (Arabidopsis thaliana) CBF coldresponse pathway (Thomashow, 2001). Exposing Arabidopsis plants to low temperature results in rapid induction of a small family of transcriptional activators known either as CBF1, 2, and 3 (CBF1-3; Stockinger et al., 1997;Gilmour et al., 1998;Medina et al., 1999) or as DREB1B, C, and A, respectively (Liu et al., 1998). These transcription factors, which belong to the AP2/ERF domain family of DNA-binding proteins (Riechmann and Meyerowitz, 1998), recognize a cis-acting regulatory element known as the C-repeat/dehydration response element (CRT/DRE; Baker et al., 1994;Yamaguchi-Shinozaki and Shinozaki, 1994;Stockinger et al., 1997) that is present in the promoters of many cold-inducible genes such as COR15A and COR78 (also known as RD29A and LTI78). Transgenic plants overexpressing CBF1, 2, or 3 constitutively express CBFtargeted cold-induced genes, the CBF regulon, and exhibit an increase in freezing tolerance that is independent of a cold stimulus (Jaglo-Ottosen et al., 1998;Liu et al., 1998).Transc...

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“…Arabidopsis mutants deficient in activity of chloroplast fatty acid W-9 desaturase accumulate large amounts of 16:0 fatty acids, resulting in greater saturation of chloroplast lipids and in higher optimal growth temperature (Raison, 1986;Kunst et al, 1989). In other species, however, heat tolerance or tolerance differences among cultivars have been unrelated to membrane lipid saturation (Kee and Nobel, 1985;Rikin et al, 1993). In such species, a factor other than membrane stability may be limiting growth at high temperature.…”

Section: Thermal Stability Of Cell Membranesmentioning

confidence: 99%

High Temperature Control in Mediterranean Greenhouse Production: The Constraints and the Options

Pascale

Stanghellini

2011

Acta Hortic.

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In the open field, the environment is a critical determinant of crop yield and produce quality and it affects the geographical distribution of most crop species. In contrast, in protected cultivation, environmental control allows the fulfillment of the actual needs depending on the technological level. The economic optimum, however, depends on the trade-off between the costs of increased greenhouse control and increase in return, dictated by yield quantity, yield quality and production timing. Additional constraints are increasingly applied for achieving environmental targets. However, the diverse facets of greenhouse technology in different areas of the world will necessarily require different approaches to achieve an improved utilization of the available resources. Although advanced technologies to improve resource use efficiency can be developed as a joint effort between different players involved in greenhouse technology, some specific requirements may clearly hinder the development of common "European" resource management models that, conversely should be calibrated for different environments. For instance, the quantification and control of resource fluxes can be better accomplished in a relatively closed and fully automated system, such as those utilized in the glasshouse of Northern-Central Europe, compared to Southern Europe, where different typologies of semiopen/semi-closed greenhouse systems generally co-exist. Based on these considerations, innovations aimed at improving resource use efficiency in greenhouse agriculture should implement these aspects and should reinforce and integrate information obtained from different research areas concerning the greenhouse production. Advancing knowledge on the physiology of high temperature adaptation, for instance, may support the development and validation of models for optimizing the greenhouse system and climate management in the Mediterranean. Overall, a successful approach will see horticulturists, plant physiologists, engineers and economists working together toward the definition of a sustainable greenhouse system.

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Correlation between the Circadian Rhythm of Resistance to Extreme Temperatures and Changes in Fatty Acid Composition in Cotton Seedlings

Cited by 71 publications

References 13 publications

Coordination of Plant Metabolism and Development by the Circadian Clock.

Coordination of Plant Metabolism and Development by the Circadian Clock.

Low Temperature Induction of Arabidopsis CBF1, 2, and 3 Is Gated by the Circadian Clock

High Temperature Control in Mediterranean Greenhouse Production: The Constraints and the Options

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