marcescent

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marcescent

[mär′ses·ənt]
(botany)
Withering without falling off.
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Transferable resistance to cephotaxime, cefoxitin, cefamandole and cefuroxime in clinical isolates of Klebsiella pneumonia and Serratia marcescence. Infection 1983; 11: 315-7.
ABSTRACT: Presence of marcescent leaves during winter is a common phenomenon in northern-temperate deciduous forests across the Holarctic, but the ecological significance of marcescence on woody vegetation has received little attention.
Marcescence is a juvenile trait in young trees or lower branches of larger trees (Schaffalitzky de Muckadell 1962), where leaves are retained up to a height of about 3 m during the entire winter, and not shed until spring.