Invertase in leaves: conundrum or control point?

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl Adolyguadolygiad gan gymheiriaid

70 Dyfyniadau(SciVal)


The distribution and activity of invertase in mature source leaves is discussed in relation to the anabolic and catabolic processes that occur in such tissues. Anomalously high levels of extractable activity are not, at first sight, consistent with the perceived anabolic function of leaves. The mechanisms of sucrose breakdown in leaves are discussed with particular reference to the ways in which in vivo activity could be modulated by factors such as product inhibition or developmental control. The possible roles of invertase in leaves are discussed in relation to (a) the metabolism of sucrose in heterotrophic tissues (epidermis and vasculature); (b) sensing changes in assimilate abundance and transducing these into altered patterns of gene expression and (c) the metabolism of oligosaccharides based upon sucrose. Evidence is presented that indicates a significant degree of tissue-level compartmentation in the activity of invertase
Iaith wreiddiolSaesneg
Tudalennau (o-i)735-743
Nifer y tudalennau9
CyfnodolynJournal of Experimental Botany
Rhif cyhoeddi335
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - Meh 1999

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