Ex situ conservation of the endangered species Androcalva perlaria (Malvaceae) by micropropagation and cryopreservation

Whiteley, Susan E.; Bunn, Eric; Menon, Akshay; Mancera, Ricardo L.; Turner, Shane R.

doi:10.1007/s11240-016-0955-z

Cited by 21 publications

(7 citation statements)

References 25 publications

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“…For example, in the case of Androcalva perlaria CF Wilkins, an endangered species from Australia, and the palm tree Phoenix reclinata Jacq., which both presented a regeneration capacity of 70% after cryopreservation. 218,219 Touchell and Dixon (1994) 220 also showed that it is possible to preserve some seeds of the Australian flora at a temperature of -20/-80 C. These kind of studies can serve as a basis for the establishment of cryopreservation banks, which would preserve plant genetic resources of endangered or economically important native species.…”

Section: Cold Acclimationsignaling and Acquisition Of Freezing Tolerancementioning

confidence: 98%

Rapid responses of plants to temperature changes

et al. 2017

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Temperature is one of the main environmental factors that affect plant metabolism. Considering that plants are sessile, their survival depends on the efficient activation of resistance responses to thermal stress. In this comprehensive review, we discuss recent work on rapid biochemical and physiological adjustments, herein referred to as those occurring during the first few hours or a few days after the beginning of the change in the ambient temperature. The short-term metabolic modulation after plant exposure to heat and cold, including chilling and freezing, is discussed. Effects on photosynthesis, cell membranes, antioxidant system, production of heat shock proteins and nitric oxide, as well as an overview of signaling events to heat or cold stress are presented. In addition, we also discuss the acclimation process that occurs when the plant acquires resistance to an increase or decrease in temperature, adjusting its homeostasis and steady-state physiology to the new temperatures. Finally, we present studies with tropical plants that aim at elucidating the effects of temperature and the identification of the resilience levels of these plants to the expected climate changes, and which seek the development of techniques for germplasm conservation of endangered species.

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Section: Cold Acclimationsignaling and Acquisition Of Freezing Tolerancementioning

confidence: 98%

Rapid responses of plants to temperature changes

et al. 2017

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“…The addition of growth regulators to recovery media is common for cryopreservation of many Australian species (Touchell et al 2002;Menon et al 2012;Whiteley et al 2016). Shoot tips of Grevillea scapigera, for example, fully recovered only in the presence of zeatin whereas, in the same study, Anigozanthos viridis showed greatest recovery levels with the addition of choline chloride (Touchell et al 2002).…”

Section: Recovery Mediummentioning

confidence: 94%

Current issues in plant cryopreservation and importance for ex situ conservation of threatened Australian native species

et al. 2019

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An alarming proportion of Australia’s unique plant biodiversity is under siege from a variety of environmental threats. Options for in situ conservation are becoming increasingly compromised as encroaching land use, climate change and introduced diseases are highly likely to erode sanctuaries regardless of best intentions. Ex situ conservation is currently limited to botanic garden living collections and seed banking, with in vitro and cryopreservation technologies still being developed to address ex situ conservation of species not amenable to conventional storage. Cryopreservation (storage in liquid nitrogen) has been used successfully for long-term biosecure storage of shoot tips of several species of threatened Australian plants. We present a case for building on this research and fostering further development and utilisation of cryopreservation as the best means of capturing critical germplasm collections of Australian species with special storage requirements (e.g. recalcitrant-seeded taxa and species with short-lived seeds) that currently cannot be preserved effectively by other means. This review highlights the major issues in cryopreservation that can limit survival including ice crystal damage and desiccation, toxicity of cryoprotective agents, membrane damage, oxidative stress and mitochondrial function. Progress in understanding and mitigating these stresses is vital for advancing cryopreservation for conservation purposes.

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“…[141], cherry birch (Betula lenta L.) [142], and the critically endangered pearl-like androcalva (Androcalva perlaria Wilk.) [143]. Recently, Streambank lupine (Lupinus rivularis Lindl.…”

Section: Micropropagation and Cryopreservation Methodsmentioning

confidence: 99%

In Vitro Technology in Plant Conservation: Relevance to Biocultural Diversity

Kulak

Longboat

Brunet

et al. 2022

Plants

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Plant diversity is critical to the functioning of human societies, and evidence shows that plant conservation success is driven by integrative approaches that include social and biological factors. Plants have a unique capacity to reproduce asexually, and propagation practices can yield large numbers of plantlets. These plantlets can be used in several ways to fulfil conservation goals including the repopulation of regions with declining densities of threatened species that hold cultural meaning. However, the potential of in vitro technologies in the conservation of plants that hold cultural meaning is understudied. In this paper we focus upon the roles of in vitro technologies in the conservation of plants relevant to biocultural environments and provide an overview of potential knowledge gaps at the interface of in vitro and plants used traditionally, including those meaningful to Indigenous Peoples. We conclude that in vitro technologies can be powerful tools in biocultural conservation if they are deployed in a manner respectful of the socio-cultural context in which plants play a role, but that further research is needed in this regard. We suggest several epistemological points to facilitate future research.

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Ex situ conservation of the endangered species Androcalva perlaria (Malvaceae) by micropropagation and cryopreservation

Cited by 21 publications

References 25 publications

Rapid responses of plants to temperature changes

Rapid responses of plants to temperature changes

Current issues in plant cryopreservation and importance for ex situ conservation of threatened Australian native species

In Vitro Technology in Plant Conservation: Relevance to Biocultural Diversity

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