Cold Acclimation and Freezing Tolerance (A Complex Interaction of Light and Temperature)

Gray, Gordon R.; Chauvin, L.-P.; Sarhan, Fathey; Hüner, Norman P. A.

doi:10.1104/pp.114.2.467

Cited by 243 publications

(202 citation statements)

References 29 publications

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“…The growth and morphology of cold-treated plants appear sensitive to the redox state of PSII, and it has been speculated that this is mediated by hormones (Gray et al, 1997;Huner et al, 1998;Rapacz, 2002). We propose that SA is one hormone making a significant contribution to lowtemperature growth inhibition.…”

Section: Discussionmentioning

confidence: 99%

Salicylate Accumulation Inhibits Growth at Chilling Temperature in Arabidopsis

et al. 2004

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The growth of Arabidopsis plants in chilling conditions could be related to their levels of salicylic acid (SA). Plants with the SA hydroxylase NahG transgene grew at similar rates to Col-0 wild types at 23°C, and growth of both genotypes was slowed by transfer to 5°C. However, at 5°C, NahG plants displayed relative growth rates about one-third greater than Col-0, so that by 2 months NahG plants were typically 2.7-fold larger. This resulted primarily from greater cell expansion in NahG rosette leaves. Specific leaf areas and leaf area ratios remained similar in both genotypes. Net assimilation rates were similar in both genotypes at 23°C, but higher in NahG at 5°C. Chlorophyll fluorescence measurements revealed no PSII photodamage in chilled leaves of either genotype. Col-0 shoots at 5°C accumulated SA, particularly in glucosylated form. SA in NahG shoots showed similar tendencies at 5°C, but at greatly depleted levels. Catechol was not detected as a metabolite of the NahG transgene product. We also examined growth and SA levels in SA signaling and metabolism mutants at 5°C. The partially SAinsensitive npr1 mutant displayed growth intermediate between NahG and Col-0, while the SA-deficient eds5 mutant behaved like NahG. In contrast, the cpr1 mutant at 5°C accumulated very high levels of SA and its growth was much more inhibited than wild type. At both temperatures, cpr1 was the only SA-responsive genotype in which oxidative damage (measured as thiobarbituric acid-reactive substances) was significantly different from wild type.Salicylic acid (SA) has received much attention due to its association with economically important plant responses to disease and other stresses. Detailed evidence implicates SA in PR gene expression, systemic acquired resistance, and the hypersensitive response (Kunkel and Brooks, 2002). SA also seems to be involved in responses to abiotic stresses, such as ozone (Sharma et al., 1996;Rao and Davis, 1999;Koch et al., 2000), salt and osmotic stress (Borsani et al., 2001;Molina et al., 2002;Shim et al., 2003), UV-B (Surplus et al., 1998), drought (Senaratna et al., 2000Nemeth et al., 2002), paraquat (Kim et al., 2003, and heat (Dat et al., 1998a(Dat et al., , 1998b(Dat et al., , 2000Lopez-Delgado et al., 1998a;Senaratna et al., 2000;Larkindale and Knight, 2002; Clarke et al., 2004). Stress-influenced developmental transitions, including flowering (Hatayama and Takeno, 2003;Martinez et al., 2004), tuberization (Lopez-Delgado and Scott, 1997), and senescence (Morris et al., 2000), may also involve SA.Cold is one of the most important limitations to crop productivity and species distribution. Freezing (subzero) or chilling (low positive) temperatures can cause injury or reduced growth depending on the cold tolerance of the species (Schneider et al., 1995;Pearce, 1999;Humphreys et al., 2003). Recent studies describe potentially valuable effects of salicylate treatment on cold tolerance in maize, rice, and wheat (Janda et al., 1999;Szalai et al., 2000;Kang and Saltveit, 2002;Tasgin et al., 200...

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Section: Discussionmentioning

confidence: 99%

Salicylate Accumulation Inhibits Growth at Chilling Temperature in Arabidopsis

et al. 2004

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“…A fall in temperature can reduce the fluidity of membranes, and this appears to be an effective direct sensor of cold in cyanobacteria. Another possibility is that, in light, photosynthetic cells may sense cold through an effect on photosystem II excitation pressure (Gray et al, 1997;Huner et al, 1998). Molecular studies have shown that cold acclimation in higher plants is complex involving multiple regulatory pathways (Fowler and Thomashow, 2002), furthermore while some of the signal transduction pathways interact, others are independent (Xin and Browse, 2000).…”

Section: Plant Cold Tolerancementioning

confidence: 99%

Biotechnological implications from abscisic acid (ABA) roles in cold stress and leaf senescence as an important signal for improving plant sustainable survival under abiotic-stressed conditions

Xue-Xuan

Shao²,

et al. 2010

Critical Reviews in Biotechnology

114

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Successful adaptation of a plant species is dependent upon the programming of critical growth stages so that the plant can capitalize on favorable weather periods during the growing season (Dominique and Andrew, 2010). Plants have evolved a variety of adaptive mechanisms that allow them to optimize growth and development while coping with environmental stresses. These mechanisms include seed and bud dormancy, photoperiod sensitivity, and low-temperature response and others (Fowler et al., 1999;Caius, 2010;Clint and Malcolm, 2007). Seed dormancy delays germination until after the embryo has gone through an after-ripening period. The overwinter survival of buds of many temperate zone trees and shrubs is dependent on a dormancy stage that starts in the late summer or early fall and ends after exposure to an extended period of cold or increasing day length in the spring. In addition to trees, many other dicots and grasses have a photoperiod response that can advance or delay flowering. Vernalization is a requirement for growth at low temperatures before a plant will flower. Most winter annual and biennial plants have a vernalization requirement. Low-temperature acclimation is an ability of plants to cold acclimate when exposed to gradually decreasing temperatures below a specific threshold. This is the most common mechanism that plants have evolved for adapting to low-temperature stress and examples of plants with the capacity to cold harden can be found in most species (Fowler et al., 1999;Nilson and Assmann, 2007;von Caemmerer and Baker, 2007;David and Jacqueline, 2010 AbstractIn the past few years, the signal transduction of the plant hormone abscisic acid (ABA) has been studied extensively and has revealed an unanticipated complex. ABA, characterized as an intracellular messenger, has been proven to act a critical function at the heart of a signaling network operation. It has been found that ABA plays an important role in improving plant tolerance to cold, as well as triggering leaf senescence for years. In addition, there have been many reports suggesting that the signaling pathways for leaf senescence and plant defense responses may overlap. Therefore, the objective was to review what is known about the involvement of ABA signaling in plant responses to cold stress and regulation of leaf senescence. An overview about how ABA is integrated into sugars and reactive oxygen species signaling pathways, to regulate plant cold tolerance and leaf senescence, is provided. These roles can provide important implications for biotechnologically improving plant cold tolerance.

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“…It is well documented that cold hardening and the light intensity during the cold phase have pivotal roles in the acclimation and development of frost hardiness. However, this strongly depends on the length and severity of the stress (Gray et al, 1997;Janda et al, 2014). It is still not clear how water deprivation and light intensity affect the efficiency of carbon and nitrogen assimilation, and sucrose degradation under cold conditions.…”

Section: Introductionmentioning

confidence: 99%

Reduced light and moderate water deficiency sustain nitrogen assimilation and sucrose degradation at low temperature in durum wheat

Majláth

Darkó

Palla

et al. 2016

Journal of Plant Physiology

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(I. Majláth). 2 SUMMARYThe rate of carbon and nitrogen assimilation is highly sensitive to stress factors, such as low temperature and drought. Little is known about the role of light in the simultaneous effect of cold and drought. The present study thus focused on the combined effect of mild water deficiency and different light intensities during the early cold hardening in durum wheat (Triticum turgidum ssp. durum L.) cultivars with different levels of cold sensitivity. The results showed that reduced illumination decreased the undesirable effects of photoinhibition in the case of net photosynthesis and nitrate reduction, which may help to sustain these processes at low temperature. Mild water deficiency also had a slight positive effect on the effective quantum efficiency of PSII and the nitrate reductase activity in the cold. Glutamine synthesis was affected by light rather than by water deprivation during cold stress. The invertase activity increased to a greater extent by water deprivation, but an increase in illumination also had a facilitating effect on this enzyme. This suggests that both moderate water deficiency and light have an influence on nitrogen metabolism and sucrose degradation during cold hardening. A possible rise in the soluble sugar content caused by the invertase may compensate for the decline in photosynthetic carbon assimilation indicated by the decrease in net photosynthesis. The changes in the osmotic potential can be also correlated to the enhanced level of invertase activity. Both of them were regulated by light at normal water supply, but not at water deprivation in the cold. However, changes in the metabolic enzyme activities and osmotic adjustment could not be directly contributed to the different levels of cold tolerance of the cultivars in the early acclimation period.

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Cold Acclimation and Freezing Tolerance (A Complex Interaction of Light and Temperature)

Cited by 243 publications

References 29 publications

Salicylate Accumulation Inhibits Growth at Chilling Temperature in Arabidopsis

Salicylate Accumulation Inhibits Growth at Chilling Temperature in Arabidopsis

Biotechnological implications from abscisic acid (ABA) roles in cold stress and leaf senescence as an important signal for improving plant sustainable survival under abiotic-stressed conditions

Reduced light and moderate water deficiency sustain nitrogen assimilation and sucrose degradation at low temperature in durum wheat

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