Phytohormones and Cold Stress Tolerance

Lado, Joanna; Rey, Florencia; Manzi, Matías

doi:10.1007/978-981-19-4941-8_9

Plant Hormones and Climate Change 2023

DOI: 10.1007/978-981-19-4941-8_9

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Phytohormones and Cold Stress Tolerance

Joanna Lado¹,

Florencia Rey²,

Matías Manzi³

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2024

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Molecular Mechanisms Underlying Freezing Tolerance in Plants: Implications for Cryopreservation

Białoskórska,

Rucińska,

Boczkowska

2024

IJMS

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Cryopreservation is a crucial technique for the long-term ex situ conservation of plant genetic resources, particularly in the context of global biodiversity decline. This process entails freezing biological material at ultra-low temperatures using liquid nitrogen, which effectively halts metabolic activities and preserves plant tissues over extended periods. Over the past seven decades, a plethora of techniques for cryopreserving plant materials have been developed. These include slow freezing, vitrification, encapsulation dehydration, encapsulation–vitrification, droplet vitrification, cryo-plates, and cryo-mesh techniques. A key challenge in the advancement of cryopreservation lies in our ability to understand the molecular processes underlying plant freezing tolerance. These mechanisms include cold acclimatization, the activation of cold-responsive genes through pathways such as the ICE–CBF–COR cascade, and the protective roles of transcription factors, non-coding RNAs, and epigenetic modifications. Furthermore, specialized proteins, such as antifreeze proteins (AFPs) and late embryogenesis abundant (LEA) proteins, play crucial roles in protecting plant cells during freezing and thawing. Despite its potential, cryopreservation faces significant challenges, particularly in standardizing protocols for a wide range of plant species, especially those from tropical and subtropical regions. This review highlights the importance of ongoing research and the integration of omics technologies to improve cryopreservation techniques, ensuring their effectiveness across diverse plant species and contributing to global efforts regarding biodiversity conservation.

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Molecular Mechanisms Underlying Freezing Tolerance in Plants: Implications for Cryopreservation

Białoskórska,

Rucińska,

Boczkowska

2024

IJMS

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show abstract

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Phytohormones and Cold Stress Tolerance

Cited by 1 publication

References 82 publications

Molecular Mechanisms Underlying Freezing Tolerance in Plants: Implications for Cryopreservation

Molecular Mechanisms Underlying Freezing Tolerance in Plants: Implications for Cryopreservation

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