Impact of in vitro CO2 enrichment and sugar deprivation on acclimatory responses of Phalaenopsis plantlets to ex vitro conditions

Yoon, Yeo-Joong; Mobin, Mohammad; Hahn, Eun-Joo; Paek, Kee-Yoeup

doi:10.1016/j.envexpbot.2008.08.001

Cited by 21 publications

(9 citation statements)

References 21 publications

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“…Similar results were reported in orchids of the genus Phalaenopsis cultivated in a higher CO 2 concentration atmosphere, which showed increased biomass production (YOON et al, 2009).…”

Section: Resultssupporting

confidence: 87%

Flask sealing on in vitro seed germination and morphogenesis of two types of ornamental pepper explants

et al. 2017

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“…Similar results were reported in orchids of the genus Phalaenopsis cultivated in a higher CO 2 concentration atmosphere, which showed increased biomass production (YOON et al, 2009).…”

Section: Resultssupporting

confidence: 87%

Flask sealing on in vitro seed germination and morphogenesis of two types of ornamental pepper explants

et al. 2017

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“…This is due to the increase CO 2 concentration promotes increase photosynthesis, due to its direct effect on enzyme RUBISCO (ribulose-1.5-biphosphate carboxylase), and the decrease in relative humidity with greater gas exchanges in the tube increases significantly the rate of transpiration, and consequently the absorption of water and nutrients. According to Yoon et al (2009), in vitro CO 2 enrichment and sugar deprivation promoted most of the growth parameters during in vitro growth and ex vitro acclimatization of Phalaenopsis plantlets.…”

Section: Resultsmentioning

confidence: 99%

Acclimatization of 'VR043-43' (Vitis vinifera x Vitis rotundifolia) grapevine rootstock

Machado¹,

Biasi²,

Ritter³

et al. 2010

Sci. agric. (Piracicaba, Braz.)

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The pre-acclimatization stage can be used to improve micropropagation protocols and increase the yield of produced plants. The influence of sucrose and photon flux density (PFD) levels on the acclimatization of in vitro-grown 'VR043-43' (Vitis vinifera x Vitis rotundifolia) grapevine rootstocks was evaluated. Rooted shoots were obtained from 4-week-old in vitro shoots cultivated in QL (Quoirin and Lepoivre, 1977) culture medium supplemented with 15, 30 and 45 g L -1 of sucrose. The experiment was kept in a 25 ± 2ºC growth room, under 16-h photoperiod and PFD of 18 μmol m -2 s -1 or 43 μmol m -2 s -1 . Plants were transferred to an intermittent misting system greenhouse for 10 d followed by 20 d of once-a-day watering routine using a handheld hose. Plant height was influenced by sucrose concentration, and shoots produced on media supplemented with 30 g L -1 sucrose were the tallest (5.0 cm). The largest leaf area was obtained with 31.3 g L -1 of sucrose, under the PFD of 43 μmol m -2 s -1 (13.3 cm 2 ). Absence of sucrose in the culture medium led to a significant reduction in leaf area at both PFDs. Shoot (aerial part) dry matter was largest when 30 or 45 g L -1 of sucrose (17.5 and 16.7 mg per plant, respectively) were used. Microcuttings rooted in all sucrose concentrations tested. The highest survival percentage (100%) during ex vitro acclimatization was obtained for shoots cultured in media supplemented with 45 g L -1 of sucrose under both PFDs tested.

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“…For example, in the process of senescence, sugars are involved by causing repression of photosynthetic gene expression and activity (Pourtau et al 2006). In addition, different experiments with exogenous supply of sucrose have indicated a significant infringe of photosynthesis together with a strong decrease in the abundance, activation state and activity of Rubisco and PEPC (Yoon et al 2009;Moreira Lobo et al 2015).…”

Section: Sugars and Plant Metabolismmentioning

confidence: 99%

Exploration of Sweet Immunity to Enhance Abiotic Stress Tolerance in Plants: Lessons from CAM

2016

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The concept of 'sweet immunity' or 'sugar-enhanced defence' is based on the accumulating evidence that sweet, endogenous saccharides might act as signalling molecules that are activated by exposure to stress and hence initiate signal amplification and lead to more rapid and robust activation of defence, immunity and stress tolerance. Sugars such as glucose, fructose and sucrose have acquired important regulatory functions in evolution and are becoming more and more recognized as signalling molecules in plants controlling gene expression related to plant metabolism, stress resistance and development. This offers opportunities for 'sweet priming', defined as a physiological process that prepares plants for a faster and/or stronger defence response to future stress conditions, but does not impose the costs associated with full implementation of an induced defence

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Impact of in vitro CO2 enrichment and sugar deprivation on acclimatory responses of Phalaenopsis plantlets to ex vitro conditions

Cited by 21 publications

References 21 publications

Flask sealing on in vitro seed germination and morphogenesis of two types of ornamental pepper explants

Flask sealing on in vitro seed germination and morphogenesis of two types of ornamental pepper explants

Acclimatization of 'VR043-43' (Vitis vinifera x Vitis rotundifolia) grapevine rootstock

Exploration of Sweet Immunity to Enhance Abiotic Stress Tolerance in Plants: Lessons from CAM

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