Cellular localization of the invertase, proteinaceous inhibitor and lectin from potato tubers

Autor:	Antonio Rodolfo Sampietro, María Inés Isla, Darı́o Patricio Leal, Marta Amelia Vattuone
Rok vydání:	1992
Předmět:	chemistry.chemical_classification Sucrose food and beverages Lectin Fructose Plant Science General Medicine Horticulture Biology Solanum tuberosum Biochemistry chemistry.chemical_compound Enzyme Agglutinin Invertase chemistry biology.protein Molecular Biology Cellular localization
Zdroj:	Phytochemistry. 31:1115-1118
ISSN:	0031-9422
DOI:	10.1016/0031-9422(92)80244-9
Popis:	The activity of the acid β- d -fructofuranoside fructohydrolase from Solanum tuberosum is thought to be modulated by a proteinaceous inhibitor. However, the invertase is also inhibited by the S. tuberosum agglutinin, and fructose is able to modulate the enzyme activity in vitro . These facts cast doubt on the physiological role of the proteinaceous inhibitor. The present paper shows that the soluble acid invertase from S. tuberosum and most of the cell sucrose occur in vacuoles together with fructose and glucose. The proteinaceous inhibitor and the lectin were found together in the partially digested cell wall. From these results an in vivo action of the proteinaceous inhibitor upon the soluble acid invertase is unlikely.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7529b67bfb05940a642ee47e4e955fc3 https://doi.org/10.1016/0031-9422(92)80244-9 Zobrazit plný text záznamu