TY - JOUR
T1 - Cold‐acclimation induced changes in freezing tolerance and translatable RNA content in Citrus grandis and Poncirus trifoliata
AU - Durham, Richard E.
AU - Moore, Gloria A.
AU - Haskell, Dale
AU - Guy, Charles L.
PY - 1991/8
Y1 - 1991/8
N2 - Cold‐acclimation‐induced changes in freezing tolerance and translatable RNA content were compared in seedlings of a relatively cold sensitive citrus species, Citrus grandis L. Osb. cv. Thong Dee (pummelo), and the cold‐hardy citrus relative, Poncirus trifoliata L. Raf. cv. Pomeroy (trifoliate orange). Cold acclimation of pummelo (10 days at 15°C followed by 4 weeks at 10°/5°C, day/night) resulted in a decrease in LT50 from −6 to −8°C, while in trifoliate orange (acclimated for 7 weeks at 5°C), the LT50 decreased from −9 to −18°C. Qualitative changes in the in vitro translation profile, revealed by two‐dimensional gel electrophoresis, were observed following cold acclimation in both species. An mRNA for a large polypeptide (ca 160 kDa) was detected following cold acclimation of trifoliate orange. A similar change was not observed in pummelo following cold acclimation.
AB - Cold‐acclimation‐induced changes in freezing tolerance and translatable RNA content were compared in seedlings of a relatively cold sensitive citrus species, Citrus grandis L. Osb. cv. Thong Dee (pummelo), and the cold‐hardy citrus relative, Poncirus trifoliata L. Raf. cv. Pomeroy (trifoliate orange). Cold acclimation of pummelo (10 days at 15°C followed by 4 weeks at 10°/5°C, day/night) resulted in a decrease in LT50 from −6 to −8°C, while in trifoliate orange (acclimated for 7 weeks at 5°C), the LT50 decreased from −9 to −18°C. Qualitative changes in the in vitro translation profile, revealed by two‐dimensional gel electrophoresis, were observed following cold acclimation in both species. An mRNA for a large polypeptide (ca 160 kDa) was detected following cold acclimation of trifoliate orange. A similar change was not observed in pummelo following cold acclimation.
KW - Citrus
KW - Citrus grandis
KW - Poncirus trifoliata
KW - fruit crop
KW - hardiness
KW - low temperature
KW - stress proteins
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U2 - 10.1111/j.1399-3054.1991.tb02941.x
DO - 10.1111/j.1399-3054.1991.tb02941.x
M3 - Article
AN - SCOPUS:84989725925
SN - 0031-9317
VL - 82
SP - 519
EP - 522
JO - Physiologia Plantarum
JF - Physiologia Plantarum
IS - 4
ER -