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25 January 2008 Protocorm-like body (PLB) formation and plant regeneration from the callus culture of Dendrobium candidum Wall ex Lindl
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Abstract

An efficient system was established for a higher frequency of protocorm-like body (PLB) formation from the callus of Dendrobium candidum Wall ex Lindl. The calluses were induced from longitudinally bisected segments of protocorms and subcultured two times every 40d on Murashige and Skoog medium with macronutrients at half strength, micronutrients at full strength, 2% sucrose, and with 8.8μM 6-Benzylaminopurine. PLB formation was achieved when calluses were transferred onto the same basal medium without any plant growth regulators. PLBs developed into intact plantlets about 2cm in height and with four roots when on basal medium with 2.7μM 1-naphthaleneacetic acid. Plantlets were transplanted into vermiculite with a 95% survival rate in a greenhouse. Histological observations proved that globular somatic embryos could be produced from the inside and surface of the embryogenic callus during PLB formation.

Peng Zhao, Fei Wu, Fo-Sheng Feng, and Wan-Jun Wang "Protocorm-like body (PLB) formation and plant regeneration from the callus culture of Dendrobium candidum Wall ex Lindl," In Vitro Cellular and Developmental Biology - Plant 44(3), 178-185, (25 January 2008). https://doi.org/10.1007/s11627-007-9101-2
Received: 27 November 2006; Accepted: 6 November 2007; Published: 25 January 2008
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