Peroxidase and Polyphenoloxidase Activities and Free Ninhydrin‐Positive Substances in Underground Buds of Ironweed and Leafy Spurge 1

Autor:	Francis A. Haskins, W. G. Monson
Rok vydání:	1965
Předmět:	chemistry.chemical_compound Horticulture biology chemistry Agronomy Ninhydrin biology.protein Dormancy Agronomy and Crop Science Leafy Peroxidase
Zdroj:	Agronomy Journal. 57:140-142
ISSN:	1435-0645 0002-1962
DOI:	10.2134/agronj1965.00021962005700020004x
Popis:	SynopsisPeroxidase activity in extracts of underground buds of ironweed and leafy spurge was at the lowest level during the period of dormancy in both species, and increased when dormancy was broken. Polyphenoloxidase activity of bud extracts was high for ironweed and very low for leafy spurge, and showed no relationship with dormancy in either species. Ninhydrin-positive substances generally and sulfur-containing amino acids in particular increased during the dormant period.
Databáze:	OpenAIRE
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