A Pilot Study on Internode Elongation in a Paleotropical Bamboo, Dendrocalamus latiflorus (Poaceae: Bambusoideae)

Abstract

Abstract:

The rapid growth of bamboo culms at the juvenile stage is still an unresolved scientific issue in grass biology. In this study, we selected the eighth node as the standard node to investigate internode development in the paleotropical bamboo species, Dendrocalamus latiflorus. An elongation curve and anatomical features of the eighth internode were determined using statistical methods and a paraffin section technique, respectively. Internode elongation was found to show a “slowfast” trend. During early stages of internode development, most cells divided quickly, but then gradually stopped dividing before elongating in a topdown orientation between the nodes. Finally, cells forming the internode stopped elongating and became mature. This is the first report on internode development of a largesized paleotropical bamboo species, and should promote further research on rapid growth of bamboo shoots.

Key words: Dendrocalamus latiflorus, Internode, Elongation curve, Anatomy, Fast growth

CLC Number:

Q 944

Li-Xia, GUO Zhen-Hua. A Pilot Study on Internode Elongation in a Paleotropical Bamboo, Dendrocalamus latiflorus (Poaceae: Bambusoideae)[J]. Plant Diversity, 2014, 36(01): 22-28.

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