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Ultrastructural features of chilling‐injury in Episcia reptans
Author(s) -
MURPHY COLETTE,
WILSON J. M.
Publication year - 1981
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/1365-3040.ep11611230
Subject(s) - ultrastructure , chloroplast , cytoplasm , mitochondrion , swelling , botany , biology , microbiology and biotechnology , vascular bundle , chemistry , biochemistry , pathology , medicine , gene
. Chilling the leaves of the extremely chill‐sensitive plant Episcia reptans for only a few hours at 5°C causes ultrastructural changes such as swelling and disorganization of chloroplasts and mitochondria, and vesiculation of cytoplasmic membranes. Rewarming plants after 5–6 h chilling causes further deterioration in chloroplast and mitochondrial structure and the appearance of fibrous material in the cytoplasm of epidermal, mesophyll and vascular cells. The nature of the deposit is not known but it may be the cause of the rapid development of chilling‐injury on return of plants to the warmth.