abscisic acid (ABA)
基礎(chǔ)科學(xué)

        A plant hormone,firstisolated from sycamore,that functions chieflyas a growth inhibitor. It promotes abscission(shedding) of flowers and fruits,induces dor-mancy of buds and seeds,and causes closureof leaf pores (stomata). Formerly it was knownas abscisin......（本文共 316 字）     [閱讀本文] >>