Plant Antifreeze Proteins

Wisniewski, Michael; Willick, Ian R.; Duman, John G.; Livingston, David P.; Newton, Samuel S.

doi:10.1007/978-3-030-41929-5_7

Cited by 7 publications

(9 citation statements)

References 170 publications

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“…Molecular adjustments include alterations in lipid and sugar composition but also in expression of compounds (proteins/genes) and transcription factors [ 12 , 15 , 16 , 17 , 18 ]. Especially during freezing stress, several plants produce or activate antifreeze proteins in order to support freezing tolerance and avoid intracellular freezing [ 11 , 13 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Fusion of Mitochondria to 3-D Networks, Autophagy and Increased Organelle Contacts are Important Subcellular Hallmarks during Cold Stress in Plants

Steiner

Buchner

Andosch

et al. 2020

IJMS

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Low temperature stress has a severe impact on the distribution, physiology, and survival of plants in their natural habitats. While numerous studies have focused on the physiological and molecular adjustments to low temperatures, this study provides evidence that cold induced physiological responses coincide with distinct ultrastructural alterations. Three plants from different evolutionary levels and habitats were investigated: The freshwater alga Micrasterias denticulata, the aquatic plant Lemna sp., and the nival plant Ranunculus glacialis. Ultrastructural alterations during low temperature stress were determined by the employment of 2-D transmission electron microscopy and 3-D reconstructions from focused ion beam–scanning electron microscopic series. With decreasing temperatures, increasing numbers of organelle contacts and particularly the fusion of mitochondria to 3-dimensional networks were observed. We assume that the increase or at least maintenance of respiration during low temperature stress is likely to be based on these mitochondrial interconnections. Moreover, it is shown that autophagy and degeneration processes accompany freezing stress in Lemna and R. glacialis. This might be an essential mechanism to recycle damaged cytoplasmic constituents to maintain the cellular metabolism during freezing stress.

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Section: Introductionmentioning

confidence: 99%

Fusion of Mitochondria to 3-D Networks, Autophagy and Increased Organelle Contacts are Important Subcellular Hallmarks during Cold Stress in Plants

Steiner

Buchner

Andosch

et al. 2020

IJMS

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“…Plant ‘antifreeze proteins’ (AFPs; also called ‘ice‐binding proteins’) are proteins secreted to the apoplast, where they adsorb to ice crystals and prevent their growth, avoiding the harmful effects of freezing. AFPs are expressed in cold‐acclimated plants (Griffith & Yaish, 2004), and some are homologous to pathogenesis‐related (PR) proteins, providing dual protection against freezing and pathogens (Wisniewski et al, 2020). NaHS‐primed avocado trees exhibited more prominent up‐regulation of more PR genes, two of which encode homologues of a basic chitinase ( HCHIB ).…”

Section: Discussionmentioning

confidence: 99%

Priming avocado with sodium hydrosulfide prior to frost conditions induces the expression of genes involved in protection and stress responses

Tiwari,

Bussi,

Kamara

et al. 2024

Physiologia Plantarum

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Priming plants with chemical agents has been extensively investigated as a means for improving their tolerance to many biotic and abiotic stresses. Earlier, we showed that priming young avocado (Persea americana Mill cv. ‘Hass’) trees with sodium hydrosulfide (NaHS), a donor of hydrogen sulfide, improves the response of photosynthesis to simulated frost (cold followed by high light) conditions. In the current study, we performed a transcriptome analysis to gain insight into the molecular response of avocado ‘Hass’ leaves to frost, with or without NaHS priming. The analysis revealed 2144 (down‐regulated) and 2064 (up‐regulated) differentially expressed genes (DEGs) common to both non‐primed and primed trees. Non‐primed trees had 697 (down) and 559 (up) unique DEGs, while primed trees exhibited 1395 (down) and 1385 (up) unique DEGs. We focus on changes in the expression patterns of genes encoding proteins involved in photosynthesis, carbon cycle, protective functions, biosynthesis of isoprenoids and abscisic acid (ABA), as well as ABA‐regulated genes. Notably, the differential expression results depict the enhanced response of primed trees to the frost and highlight gene expression changes unique to primed trees. Amongst these are up‐regulated genes encoding pathogenesis‐related proteins, heat shock proteins, enzymes for ABA metabolism, and ABA‐induced transcription factors. Extending the priming experiments to field conditions, which showed a benefit to the physiology of trees following chilling, suggests that it can be a possible means to improve trees' response to cold stress under natural winter conditions.

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“…One would think that this is the primary cause of freezing injury. Yet freezing-tolerant herbaceous plants experience lethal injury at −10 to −30°C from equilibrium freezing-induced dehydration ( Olien 1974 , Olien and Smith 1977 , Olien and Livingston 2006 , Wisniewski et al. 2020 ).…”

Section: Ice Nucleation and The Role Of The Cell Wall In Tolerating Freezing Dehydration Injurymentioning

confidence: 99%

“…Intracellular water molecules will diffuse along the sugar osmotic gradient, through the hydrated cell-wall matrix and QLL toward the extracellular ice aggregate ( Wisniewski et al. 2014 , 2020 ). Prolonged dehydration at sub-zero temperatures can weaken cellular integrity through shifts in redox chemistry, protein and lipid denaturation (see review by Arora 2018 ).…”

Section: Ice Nucleation and The Role Of The Cell Wall In Tolerating Freezing Dehydration Injurymentioning

confidence: 99%

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Responses of the Plant Cell Wall to Sub-Zero Temperatures: A Brief Update

Takahashi

Willick

Kasuga

et al. 2021

Plant and Cell Physiology

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Our general understanding of plant responses to sub-zero temperatures focuses on mechanisms that mitigate stress to the plasma membrane. The plant cell wall receives comparatively less attention and questions surrounding its role in mitigating freezing injury remains unresolved. Despite recent molecular discoveries that provide insight into acclimation responses, the goal of reducing freezing injury in herbaceous and woody crops remains elusive. This is likely due to the complexity associated with adaptations to low temperatures. Understanding how leaf cell walls of herbaceous annuals promote tissue tolerance to ice does not necessarily lead to understanding how meristematic tissues are protected from freezing by tissue-level barriers formed by cell walls in overwintering tree buds. In this mini-review, we provide an overview of biological ice nucleation and explain how plants control the spatiotemporal location of ice formation. We discuss how sugars and pectin side chains alleviate adhesive injury that develops at sub-zero temperatures between the matrix polysaccharides and ice. The importance of site-specific cell wall elasticity to promote tissue expansion for ice accommodation and control of porosity to impede ice growth and promote supercooling will be presented. How specific cold-induced proteins modify plant cell walls to mitigate freezing injury will also be discussed. The opinions presented in this report emphasize the importance of a plant’s developmental physiology when characterizing mechanisms of freezing survival.

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Plant Antifreeze Proteins

Cited by 7 publications

References 170 publications

Fusion of Mitochondria to 3-D Networks, Autophagy and Increased Organelle Contacts are Important Subcellular Hallmarks during Cold Stress in Plants

Fusion of Mitochondria to 3-D Networks, Autophagy and Increased Organelle Contacts are Important Subcellular Hallmarks during Cold Stress in Plants

Priming avocado with sodium hydrosulfide prior to frost conditions induces the expression of genes involved in protection and stress responses

Responses of the Plant Cell Wall to Sub-Zero Temperatures: A Brief Update

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