Plant low‐temperature tolerance and its cellular mechanisms

Kawamura, Yukio; Uemura, Matsuo

doi:10.1002/9781118764374.ch5

Cited by 7 publications

(9 citation statements)

References 136 publications

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“…In primordial cells close to the crown tissue, an accumulation of amorphous starch and of di, tri and tetrasaccharides was detected. Accumulation of sugars such as glucose, fructose, sucrose, and raffinose during cold acclimation of plants is well documented (Kawamura & Uemura, ). In addition, the accumulation of raffinose and fructose‐based oligosaccharides has been correlated to increased freezing tolerance (Kawamura & Uemura, ; Livingston et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…Accumulation of sugars such as glucose, fructose, sucrose, and raffinose during cold acclimation of plants is well documented (Kawamura & Uemura, ). In addition, the accumulation of raffinose and fructose‐based oligosaccharides has been correlated to increased freezing tolerance (Kawamura & Uemura, ; Livingston et al, ). For needles of P. abies , frost hardening and dehardening correlated with an increase and decrease of sugar levels, respectively (Aronsson et al, ; DeHayes, ; Ogren et al, ).…”

Section: Discussionmentioning

confidence: 99%

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Complex bud architecture and cell‐specific chemical patterns enable supercooling of Picea abies bud primordia

Kuprian

Munkler

Resnyak

et al. 2017

Plant Cell & Environment

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Bud primordia of Picea abies, despite a frozen shoot, stay ice free down to −50 °C by a mechanism termed supercooling whose biophysical and biochemical requirements are poorly understood.Bud architecture was assessed by 3D—reconstruction, supercooling and freezing patterns by infrared video thermography, freeze dehydration and extraorgan freezing by water potential measurements, and cell‐specific chemical patterns by Raman microscopy and mass spectrometry imaging.A bowl‐like ice barrier tissue insulates primordia from entrance by intrinsic ice. Water repellent and densely packed bud scales prevent extrinsic ice penetration. At −18 °C, break‐down of supercooling was triggered by intrinsic ice nucleators whereas the ice barrier remained active. Temperature‐dependent freeze dehydration (−0.1 MPa K−1) caused accumulation of extraorgan ice masses that by rupture of the shoot, pith tissue are accommodated in large voids. The barrier tissue has exceptionally pectin‐rich cell walls and intercellular spaces, and the cell lumina were lined or filled with proteins, especially near the primordium. Primordial cells close to the barrier accumulate di, tri and tetrasaccharides.Bud architecture efficiently prevents ice penetration, but ice nucleators become active inside the primordium below a temperature threshold. Biochemical patterns indicate a complex cellular interplay enabling supercooling and the necessity for cell‐specific biochemical analysis.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Complex bud architecture and cell‐specific chemical patterns enable supercooling of Picea abies bud primordia

Kuprian

Munkler

Resnyak

et al. 2017

Plant Cell & Environment

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“…Tolerance to freezing involves avoiding the damage caused by extra-cellular ice formation (Kawamura and Uemura 2014). Lenné et al (2010) showed that some desiccation-tolerant bryophytes may avoid the formation of ice by rapid dehydration.…”

Section: Hardening and Responses To Winter Conditions In Relation To mentioning

confidence: 99%

“…Such tests have been conducted at very low temperature (−80°C; Segreto et al 2010) or have examined the responses of cells (Balagurova et al 1996) rather than with whole plants at realistic temperatures (including a recovery period). To gain an ecological understanding, it may be of greater interest to determine the effects of freezing before winter, when the plants are still growing, than to consider the potential effects of the temperature of the coldest month of the year (Sakai and Larcher 1987;Kawamura and Uemura 2014).…”

Section: Introductionmentioning

confidence: 99%

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The effects of winter stress on Sphagnum species with contrasting macro- and microdistributions

Campbell

Rydin

2019

Journal of Bryology

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Introduction. Sphagnum L. forms much of the ground cover in northern peatlands. Different species show affinities for bioclimatic regions in Europe (oceanic/continental; northern/ southern) and species-specific tolerance of winter conditions can be a factor explaining their distribution. Methods. We focussed on low temperature in a series of experiments and tested (1) the innate ability of a selection of Sphagnum species to tolerate low temperature in relation to their microtopographic (wetness) and geographical (climate) distribution; (2) the rate of cold tolerance acquisition; and (3) the ability of species to survive a range of low temperature once cold hardened. Key results. Our experiments showed that maximal PSII efficiency (F v /F m , chlorophyll fluorescence), growth rates and survival were all negatively affected by sub-zero temperatures. Environmental conditions associated with the onset of winter (colder nights and shorter days) triggered the acquisition of cold tolerance in Sphagnum. Conclusions. The results were not unequivocal, but species associated with colder climates were generally more tolerant of sub-zero conditions. Species associated with the wettest and driest ends of the wetness gradient were more consistent in their responses than those in between, with wetter-dwelling species being less sensitive to sub-zero temperature than species found in drier microhabitats. Overall, our results suggest that adaptation to winter conditions contribute to the current distribution patterns of Sphagnum species.

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Growing‐season climate as an explanation of spatial variations in temperature sensitivity of green‐up on Tibetan Plateau

Yang,

Jiang,

Huang

et al. 2024

Ecosphere

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Temperature sensitivity (TS) of the green‐up date (GUD) of plants is crucial for the prediction of grassland phenology that is important for animal husbandry and pasture management. Spatial variations in the TS are known to reflect interannual temperature variability and/or accumulated precipitation preceding the GUD (pre‐GUD). However, whether spatial TS variations are related to the interaction between pre‐GUD temperature variability and precipitation, which is a potential indicator of frost risk, remains unclear. Furthermore, because the interaction between interannual temperature variability and accumulated precipitation following the GUD (post‐GUD) can exert selection pressure on the plant life cycle, it may also be involved in shaping the spatial TS pattern. Using long‐term ground observations of GUD on the Tibetan Plateau, we show that TS is more negative (greater GUD advance per unit temperature increase) in areas with more pre‐GUD precipitation and low pre‐GUD interannual temperature variability, but less negative in areas with more pre‐GUD precipitation and high pre‐GUD interannual temperature variability. This result is likely because more pre‐GUD precipitation facilitates sprout and leaf development under stable temperature conditions, whereas it increases frost risk when the temperature variability is high. In contrast, TS magnitude decreases with increases in post‐GUD precipitation in areas where post‐GUD interannual temperature variability is low, but increases with post‐GUD precipitation in areas where post‐GUD interannual temperature variability is high. We speculate that because hydrothermal demands for leaf growth from the onset of green‐up to maturity are more easily fulfilled when interannual temperature variability is lower and precipitation is higher, green‐up need not be sensitive to pre‐GUD temperature. In contrast, high post‐GUD precipitation likely aggravates low‐temperature constraints on leaf growth when temperature variability is high, resulting in greater TS to maximize growing season length. These results suggest that spatial TS variations on the Tibetan Plateau are likely associated with adaptations of leaf‐out phenology to background pre‐GUD climatic conditions together with selection pressure from post‐GUD conditions.

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Plant low‐temperature tolerance and its cellular mechanisms

Cited by 7 publications

References 136 publications

Complex bud architecture and cell‐specific chemical patterns enable supercooling of Picea abies bud primordia

Complex bud architecture and cell‐specific chemical patterns enable supercooling of Picea abies bud primordia

The effects of winter stress on Sphagnum species with contrasting macro- and microdistributions

Growing‐season climate as an explanation of spatial variations in temperature sensitivity of green‐up on Tibetan Plateau

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