Galactomannan hydrolyzing activity develops during priming in the micropylar endosperm tip of tomato seeds

Development of galactomannan hydrolyzing activity was followed in seeds of tomato [Lycopersicon esculentum (L..) Mill. cv. Toyonishiki] during priming and germination. The activity developed in seeds that were being primed in polyethylene glycol (-0.8 MPa). The activity was detected exclusively in the endosperm portion just adjacent to the radicle tip. Part of the activity remained active after desiccation of the primed seeds

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