Metabolic changes associated with cold-acclimation in contrasting cultivars of barley

Murelli, Carla; Rizza, Fulvia; Albini, Franca Marinone; Dulio, Andrea; Terzi, Valeria; Cattivelli, Luigi

doi:10.1034/j.1399-3054.1995.940113.x

Cited by 22 publications

(27 citation statements)

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“…The increase in proline content led to the decrease in osmotic potential, which might enhance the cold tolerance. However, Murelli et al (1995) and Wanner et al (1999) found no direct relationships between the cold tolerance and proline content, neither in the cold-acclimation experiment nor in a comparative study on barley varieties differing in proline content. In this study, the increase of proline content in stolons corresponded with the decrease in temperature, but it might not be an acclimation response.…”

Section: Discussionmentioning

confidence: 99%

Changes in Freezing Tolerance and its Relationship with the Contents of Carbohydrates and Proline in Overwintering Centipedegrass (Eremochloa ophiuroides(Munro) Hack.)

Cai

Wang

Cui

et al. 2004

Plant Production Science

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Section: Discussionmentioning

confidence: 99%

Changes in Freezing Tolerance and its Relationship with the Contents of Carbohydrates and Proline in Overwintering Centipedegrass (Eremochloa ophiuroides(Munro) Hack.)

Cai

Wang

Cui

et al. 2004

Plant Production Science

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“…The ABA content after 2 days of hardening and the free fatty acids composition were clearly different between the two cultivars and may explain, at least in part, the different frost-resistance capacities of Onice and Gitane (Murelli et al ., 1995) .…”

Section: Introductionmentioning

confidence: 99%

Molecular adaptation of barley to cold and drought conditions

et al. 1996

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SummaryMolecular adaptation to cold and drought involves a series of biochemical and molecular changes leading plants to improve their winter hardiness or drought resistance.We are interested to study the molecular basis of cold acclimation and drought response of barley to survive under stress. Several genes regulated by low temperatures and sometimes by drought have been isolated from the barley genome. In this review the most significant results of our recent work will be presented and discussed.The protein encoded by eDNA clone pt59 and induced in barley by cold was over-expressed in E. coli to produce the matching antibody, which in vivo recognizes a cold-induced protein of 14 kDa (CORI4). The COR14 is stored in amounts only slightly greater in the cold resistant 'Onice' than in the susceptible 'Gitane', although the former has a higher induction-temperature threshold of COR14 than the latter. This fact is an evolutionary advantage enabling the resistant varieties in the field to prepare for the cold well ahead of the susceptible ones.Two other eDNA clones, paj93 and cdr29, are regulated by low temperature and drought stress but not by exogenous ABA treatment. Indeed during the early stage of dehydration, the mRNAs are expressed before the induction of known ABA regulated genes such as dehydrins and when only a small increase occurs in ABA content. The sequence analysis revealed that paj93 encodes for a protein homologous to the cold-regulated protein COR47 of Arabi do psis, whereas cdr29 represents a plant gene homologous to yeast and mammalian sequences coding for acyl-Coenzyme A oxidase.

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“…Through the cold acclimation process, reprogramming of gene expression and various modifications in the metabolism take place (Chinnusamy et al 2010). Acclimation also causes an increase in the production of antioxidants, abscisic acid (ABA) and compatible osmolytes such as soluble sugars and proline (Lynch & Steponkus 1987;Koster & Lynch 1992;Chen et al 1993;Kishitani et al 1994;Uemura & Steponkus 1994;Murelli et al 1995;Nomura et al 1995;Dörffling et al 1997;Tao et al 1998). Denesik (2007) reported that cold treatment affects membrane fluidity resulting in an increase in the membrane rigidity.…”

Section: Cold Acclimation and Frost Stress Tolerancementioning

confidence: 99%