作者: William P. Jacobs
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摘要: A decades-long study of hormone production, transport, developmental actions, and hormonal interactions in the green shoots mature plants has exploited a clone Coleus blumei. To obtain data both quantitative reproducible, we greatly increased sample size over classical anatomical models, initiated round-the-clock collections, countered that workload by clearing staining organs rather than embedding serially sectioning them. Major events occurred at night. The control normal differentiation regeneration tracheary cells sieve-tube members indole-3-acetic acid (IAA) cytokinins fibers IAA gibberellic have been major findings from this approach. LAA leaf blade controls timing abscission. As ages, ability petiole to transport abscission zone declines, with abscisic (ABA) decreasing down concomitantly increasing conjugation aspartic acid. Evidence for barriers was found nodes zones.