About the Cover
On the Cover: In this issue, apical dominance and correlative inhibition are shown to regulate bud outgrowth in strigolactone (a novel branching inhibitor) mutants of pea (Pisum sativum; see Ferguson and Beveridge, pp. 1929–1944). Moreover, reductions in the level or transport of auxin, or in strigolactone biosynthesis gene expression, did not always correlate with bud outgrowth. In contrast, increased cytokinin biosynthesis gene expression did correlate. The technique of stem girdling, which locally kills tissues, was used to elucidate many of these findings. The cover image depicts untreated (far left) or girdled pea stems. Photo provided by Dr. Brett Ferguson (Australian Research Council Centre of Excellence for Integrative Legume Research, Brisbane, Australia).
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Copyright © 2009 by the American Society of Plant Biologists
