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Bodhipadma Kitti Noichinda Sompoch Padyencheun Winan Khunthacharoen Theerapong Chikhunthod Utorn Leung David W. M. 《Plant Cell, Tissue and Organ Culture》2011,105(3):465-469
The shoots developed from both the shoot tip and nodal explants of feathered amaranth (Celosia argentea var. plumosa—feathered cockscomb or plumed cockscomb) after 8 weeks of culture in the presence of either paclobutrazol or benzyladenine
(BA) were shorter than those developed on basal Murashige and Skoog (MS) medium (Physiol Plant, 15:473–497, 1962) alone. However, this retarding effect was more pronounced in the nodal explant culture. Shoot tip explants from 2-week-old
seedlings were more adversely affected by 0.85 or 1.7 μM paclobutrazol than those from older seedlings. In contrast, regardless
of preculture duration investigated nodal explants did not exhibit different response to three different concentrations of
paclobutazol. The response to 2.2 or 4.4 μM BA appeared to be largely independent of the age of the shoot tip explants or
preculture treatment of nodal explants. Shoots developed from nodal explants produced a higher number of terminal inflorescence
than those from shoot tip explants. Moreover, only lateral shoots from nodal explant culture formed inflorescence. Increased
preculture duration on basal MS medium could generally lessen the inhibitory effect of lower concentrations of paclobutazol
or BA on terminal or lateral inflorescence formation in nodal explant culture. 相似文献
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