Abstract
In vitro grown inflorescences of Bambusa edulis were used to investigate the process of vegetative shoot growth in detail. The findings revealed that auxins and ACC could be significant growth regulators in this process. Overall, auxins [NAA, indolebutyric acid (IBA), and 2,4-dichlorophenoxyacetic acid (2,4-D)] induced inflorescences to grow vegetative shoots. However, the efficiency of shoot regeneration varied. A greater percentage (27.3–34.5) of inflorescences in the 5 mg l−1 NAA, 10 mg l−1 NAA, and 1 mg l−1 2,4-D treatments formed more vegetative shoots than those exposed to other treatments. IBA promoted shoot regeneration less effectively than NAA and 2,4-D. Fifty percent of regenerated vegetative shoots flowered after 2 months when the medium was supplemented with 5 mg l−1 NAA. All shoots that received 1 mg l−1 1-amino-cyclopropane-1-carboxylic acid (ACC) flowered in 5 mg l−1 NAA medium. Rooted plantlets were used to examine their survival following in vitro flowering. All plantlets with vegetative shoots, even those with inflorescences, survived and grew.
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Abbreviations
- ACC:
-
1-amino-cyclopropane-1-carboxylic acid
- 2,4-D:
-
2,4-dichlorophenoxyacetic acid
- IBA:
-
indolebutyric acid
- MS:
-
Murashige and Skoog basal medium
- NAA:
-
naphthaleneacetic acid
- TDZ:
-
thidiazuron
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Lin, CS., Lin, CC. & Chang, WC. Shoot regeneration, re-flowering and post flowering survival in bamboo inflorescence culture. Plant Cell Tiss Organ Cult 82, 243–249 (2005). https://doi.org/10.1007/s11240-005-0883-9
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DOI: https://doi.org/10.1007/s11240-005-0883-9