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Title: Vitrification-based cryopreservation of Dendrobium cruentum Rchb. F. Seeds
Authors: S. Prasongsom
K. Thammasiri
J. Narangajavana
S. Thitamadee
N. Chuenboonngarm
N. Panvisavas
Mahidol University
Keywords: Agricultural and Biological Sciences
Issue Date: 1-Jan-2019
Citation: Acta Horticulturae. Vol.1234, (2019), 157-166
Abstract: © 2019 International Society for Horticultural Science. All Rights Reserved. Dendrobium cruentum Rchb. f. is one of the epiphytic orchids originated from southwestern Thailand. It faces extinction. The cultivation of this species was successful but there is a problem for long-term storage. Meanwhile, cryopreservation is a potential technique for long-term conservation of several biological germplasm based on plant tissue at ultra-low temperature of liquid nitrogen (LN, -196°C). The vitrification technique is the use of a plant vitrification solution especially PVS2 to provide a glassy state of plant materials. Under the ultra-low temperature, Tg, Tm and Tc were observed. From the experiment, encapsulation-vitrification and V cryo-plate methods were used by using 2% sodium alginate with various exposure times (0, 30, 60, 90 and 120 min) to determine the different water content. The maximum germination percentage (68.1%) was observed in V cryo-plate method with 60 min exposure time of PVS2 solution, while the encapsulation-vitrification method showed lower germination percentage (21.6%) under the same conditions.
ISSN: 24066168
Appears in Collections:Scopus 2019

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