Descripción
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The expression of these eight MAN genes has been systematically explored in diVerent organs of this plant and only four of them (AtMAN7, AtMAN6, AtMAN2 and AtMAN5) are expressed in the germinating seeds. Moreover, in situ hybridization analysis shows that their transcript accumulation is restricted to the micropylar endosperm and to the radicle and this expression disappears soon after radicle emergence. T-DNA insertion mutants in these genes (K.O. MAN7, K.O. MAN6, K.O. MAN5), except that corresponding to AtMAN2 (K.O. MAN2), germinate later than the wild type (Wt). K.O. MAN6 is the most aVected in the germination time course with a t50 almost double than that of the Wt. These data suggest that AtMAN7, AtMAN5 and specially AtMAN6 are important for the germination of A. thaliana seeds by facilitating the hydrolysis of the mannan-rich endosperm cell walls. | |
Internacional
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Si |
JCR del ISI
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Si |
Título de la revista
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PLANTA |
ISSN
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0032-0935 |
Factor de impacto JCR
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3,372 |
Información de impacto
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Volumen
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DOI
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Número de revista
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Desde la página
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25 |
Hasta la página
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36 |
Mes
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SEPTIEMBRE |
Ranking
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