Mechanism of Overwintering in Trees

Arakawa, Keita; Kasuga, Jun; Takata, Naoki

doi:10.1007/978-981-13-1244-1_8

Cited by 11 publications

(9 citation statements)

References 135 publications

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“…In this process, plant metabolism changes as a result of hormonal changes (Fürtauer et al., 2019; Galiba & Tóth, 2017); moreover, membrane proteins and lipid compositions change, and the concentrations of metabolites (protective substances) increase (Fürtauer et al., 2019; Hoermiller et al., 2018; Larcher, 2003). Carbohydrates are among the most important metabolites because they collaborate with membranes as osmo‐protectors while protecting proteins against desiccation (Arakawa et al., 2018; Fürtauer et al., 2019; Sami et al., 2016). Cold acclimation could occur in two phases: (i) Primary‐phase or pre‐hardening, where plants are exposed to low, non‐freezing temperature for several days to weeks.…”

Section: Frost As An Abiotic Stress Factor In Plantsmentioning

confidence: 99%

Chemical products for crop protection against freezing stress: A review

Román‐Figueroa

Bravo

Paneque

et al. 2021

J Agronomy Crop Science

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Most crops of economic importance are vulnerable to environmental abiotic stresses, such as drought, extreme temperatures, and salinity (Khan et al., 2017;Piticar, 2019). Temperature is a key factor that affects plant growth and development. Sub-zero temperatures can damage and even kill crops (Piticar, 2019) due to extracellular ice formation that dehydrates cells and subsequently damages membranes (Nagao et al., 2008;Thomashow, 1999), cells disruption due to fusion between cellular and intercellular membranes can occur while the ice is formed (Takahashi et al., 2018;Thomashow, 1999). Low temperature may induce photoinhibition by producing an imbalance

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Section: Frost As An Abiotic Stress Factor In Plantsmentioning

confidence: 99%

Chemical products for crop protection against freezing stress: A review

Román‐Figueroa

Bravo

Paneque

et al. 2021

J Agronomy Crop Science

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“…For example, under short-day conditions, hardwood trees such as Silver Birch and Populus spp. develop initial provisional freezing tolerance, which increases further upon subsequent exposure to low nonfreezing and freezing temperatures [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Plant Low-Temperature Stress: Signaling and Response

et al. 2022

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Cold stress has always been a significant limitation for plant development and causes substantial decreases in crop yield. Some temperate plants, such as Arabidopsis, have the ability to carry out internal adjustment, which maintains and checks the metabolic machinery during cold temperatures. This cold acclimation process requires prior exposure to low, chilling temperatures to prevent damage during subsequent freezing stress and maintain the overall wellbeing of the plant despite the low-temperature conditions. In comparison, plants of tropical and subtropical origins, such as rice, are sensitive to chilling stress and respond differently to low-temperature stress. Plants have evolved various physiological, biochemical, and molecular mechanisms to sense and respond to low-temperature stress, including membrane modifications and cytoskeletal rearrangement. Moreover, the transient increase in cytosolic calcium level leads to the activation of many calcium-binding proteins and calcium-dependent protein kinases during low-temperature stress. Recently, mitogen-activated protein kinases have been found to regulate low-temperature signaling through ICE1. Besides, epigenetic control plays a crucial role during the cold stress response. This review primarily focuses on low-temperature stress experienced by plants and their strategies to overcome it. We have also reviewed recent progress and previous knowledge for a better understanding of plant cold stress response.

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“…Independently-evolved populations of the cavefish Astyanax mexicanus show widespread disruption of circadian clock gene rhythmicity, as well as a reduction in rhythmic transcription compared to surface-dwelling populations 12 . Activating overwintering mechanisms in trees involves an interplay between photoreceptors and the circadian clock, which is then disrupted for the duration of the winter 13 . The circadian rhythms of Svalbard reindeer are attenuated during winter months 14 , similarly to that of other Arctic mammals such as the muskox Ovibos moschatus 15 and the red fox Vulpes vulpes 16 .…”

Section: Introductionmentioning

confidence: 99%

Identification and expression of functionally conserved circadian clock genes in lichen-forming fungi

Valim

Grande

Otte

et al. 2022

Sci Rep

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Lichen-forming fungi establish stable symbioses with green algae or cyanobacteria. Many species have broad distributions, both in geographic and ecological space, making them ideal subjects to study organism-environment interactions. However, little is known about the specific mechanisms that contribute to environmental adaptation in lichen-forming fungi. The circadian clock provides a well-described mechanism that contributes to regional adaptation across a variety of species, including fungi. Here, we identify the putative circadian clock components in phylogenetically divergent lichen-forming fungi. The core circadian genes (frq, wc-1, wc-2, frh) are present across the Fungi, including 31 lichen-forming species, and their evolutionary trajectories mirror overall fungal evolution. Comparative analyses of the clock genes indicate conserved domain architecture among lichen- and non-lichen-forming taxa. We used RT-qPCR to examine the core circadian loop of two unrelated lichen-forming fungi, Umbilicaria pustulata (Lecanoromycetes) and Dermatocarpon miniatum (Eurotiomycetes), to determine that the putative frq gene is activated in a light-dependent manner similar to the model fungus Neurospora crassa. Together, these results demonstrate that lichen-forming fungi retain functional light-responsive mechanisms, including a functioning circadian clock. Our findings provide a stepping stone into investigating the circadian clock in the lichen symbiosis, e.g. its role in adaptation, and in synchronizing the symbiotic interaction.

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Mechanism of Overwintering in Trees

Cited by 11 publications

References 135 publications

Chemical products for crop protection against freezing stress: A review

Chemical products for crop protection against freezing stress: A review

Plant Low-Temperature Stress: Signaling and Response

Identification and expression of functionally conserved circadian clock genes in lichen-forming fungi

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