Y
Yukio Morohashi
Researcher at Saitama University
Publications - 40
Citations - 883
Yukio Morohashi is an academic researcher from Saitama University. The author has contributed to research in topics: Endosperm & Cotyledon. The author has an hindex of 16, co-authored 40 publications receiving 845 citations. Previous affiliations of Yukio Morohashi include Tokyo University of Agriculture and Technology.
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Peroxidase activity develops in the micropylar endosperm of tomato seeds prior to radicle protrusion
TL;DR: H2O2 was formed at the expense of NADH only in the presence of Mn2+ and dinitrophenol by the extract from the micropylar endosperm in which peroxidase activity was present.
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Water stress enhances β‐amylase activity in cucumber cotyledons
TL;DR: The present paper reports that an enhancement of lated in unstressed cotyledons is reported that is in relation to the enhancement of b-amylase activity.
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Molecular cloning of a cDNA encoding a (1→4)-β-mannan endohydrolase from the seeds of germinated tomato (Lycopersicon esculentum)
TL;DR: Overall, the enzyme exhibits only 28–30% sequence identity with fungal (1→4)-β-mannanases, but more highly conserved regions, which may represent catalytic and substrate-binding domains, can be identified.
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An Endo-[beta]-Mannanase Develops Exclusively in the Micropylar Endosperm of Tomato Seeds Prior to Radicle Emergence
TL;DR: It is proposed that the enzyme develops prior to germination specifically at the micropylar region of the endosperm of the tomato, indicating that the action pattern is different between the two types of enzymes.
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Development of β‐1,3‐glucanase activity in germinated tomato seeds
TL;DR: The post-germinative beta-1, 3-glucanase activity in the micropylar endosperm portion of tomato seeds might be brought about by wounding resulting from endOSperm rupture by radicle penetration.