Aspects of the cold-hardiness mechanism in plants

Alden, John; Hermann, Richard K.

doi:10.1007/bf02860300

Cited by 115 publications

(50 citation statements)

References 209 publications

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“…& Young 1981;Blanchet 1985), suggest that the seasonal change in frost tolerance of kiwifruit follows a common pattern found in many plant species (Alden & Hermann 1971;Larcher & Bauer 1981;Stanley & Warrington 1984). The plant shows maximum frost tolerance in winter, dehardens in spring and summer, and hardens again in autumn back to maximum winter frost tolerance.…”

Section: Discussionmentioning

confidence: 94%

Kiwifruit: Frost tolerance of plants in controlled frost conditions

Pyke¹,

Stanley²,

Warrington³

1986

New Zealand Journal of Experimental Agriculture

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Kiwifruit (Actinidia deliciosa (A. Chev.) C. F. Liang & A. R. Ferguson var. deliciosa) plants were subjected to controlled advective frosts in the autumn, winter, or spring and injury symptoms were recorded. The plants naturally hardened in autumn and early winter and rapidly dehardened in spring; temperatures lower than -5, -7, -6.5, and -OSC respectively in May, June, July, and September caused injury to plants of 'Hayward' cultivar, and all plants in the test population were killed at temperatures below -9°C in May and 67% were killed at -13°C in June. With respect to damage incidence and subsequent bud break, plants of'Bruno' cultivar appeared to be slightly less frost tolerant than 'Hayward' plants in May and in June but these cultivar differences were minor.

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Section: Discussionmentioning

confidence: 94%

Kiwifruit: Frost tolerance of plants in controlled frost conditions

Pyke¹,

Stanley²,

Warrington³

1986

New Zealand Journal of Experimental Agriculture

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“…If this is true, the ribosome may be altered to function at lower temperatures. The cytoplasm of the cell is greatly altered during induction of hardiness (1,23). Perhaps the ribesome must adapt to remain active in this altered cytoplasmic environment.…”

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confidence: 99%

Ribosomal Changes during Induction of Cold Hardiness in Black Locust Seedlings

Bixby

Brown²

1975

Plant Physiol.

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Protein synthesis has been implicated in the cold-hardening process. Ribosomes from cold hardy and nonhardy black locust (Robinia pseudoacacia L.) seedlings were compared to determine if cold acclimation is related to alteration of ribosomal structure. Ribosomal structure, as indicated by thermal melting profiles, appears to be altered during induction of hardiness. Two-dimensional polyacrylamide gel electrophoresis of ribosomal proteins indicates at least 17 proteins from hardy seedlings that are different from those of nonhardy seedlings. These different proteins may be partially responsible for the different thermal melting profiles observed.Plants capable of developing freezing resistance demonstrate altered metabolism during low temperature acclimation (cold hardening) (23). There have been many suggestions that protein synthesis plays a role in cold hardening (1, 4, 9, 13, 23). Among the many changes found during induction of cold hardiness are those which occur in RNA (13, 26) and protein (3, 4,9,13,26) metabolism. This study was undertaken to examine the ribosome as related to induction of cold hardiness. The objective was to determine if ribosomal structure is altered during induction of hardiness. MATERLALS AND METHODSPlant Material. Black locust seedlings (Robinia pseudoacacia L.) were grown in heat-sterilized vermiculite. Moisture was maintained relatively constant. Two-month seedlings were cold hardened as outlined in Table I. At specific points in the coldhardening regime, seedlings were placed into a programmed freezer and frozen at a rate of 6 C/hr. Samples were removed every 4 C starting at -4 and allowed to thaw overnight at 5 C. Stems were then harvested, placed into a mist chamber with a 15-hr photoperiod, allowed to recover for 7 days and visually evaluated for survival. Seedlings were considered uninjured if their bark remained green and tightly bound to the stem. The bark of injured seedlings became brown and loose. Stems were assigned a value of 1 if uninjured, 0.5 if injured with 50% or more of the stem alive and 0 if dead or more than 50% injured. Values were totaled and divided by the total number of stems to determine percent survival (31).

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“…The negative effect of temperature and its shifts in the dormant period (Fig. 2) might be explained by cold dehardening in response to thaws (Alden and Herman 1971;Cox and Stushnoff 2001), thus subjecting trees to stronger cold damage in a following drop of temperature (Hänninen 2006). Increased winter temperature can also burden dormancy and cause a depletion of nutrient reserves due to respiration (Foote and Scheadle 1976;Ögren et al 1997).…”

Section: Discussionmentioning

confidence: 99%

Effect of climatic factors on tree-ring width of <i>Populus</i> hybrids in Latvia

Šēnhofa¹,

Zeps²,

Matisons³

et al. 2016

Silva Fenn.

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Highlights• Hybrid poplar and hybrid aspen were sensitive to temperature in summer and dormant periods, but none of the tested factors were strictly limiting.• Hybrid poplar was sensitive to a higher number of climatic factors than hybrid aspen.• Temperature showed a negative correlation with tree-ring width. AbstractFast-growing hybrids of Populus L. have an increasing importance as a source of renewable energy and as industrial wood. Nevertheless, the long-term sensitivity of Populus hybrids to weather conditions and hence to possible climatic hazards in Northern Europe have been insufficiently studied, likely due to the limited age of the trees (short rotation). In this study, the climatic sensitivity of ca. 65-year-old hybrid poplars (Populus balsamifera L. × P. laurifolia Ledeb.), growing at two sites in the western part of Latvia, and ca. 55-year-old hybrid aspens (Populus tremuloides Michx. × P. tremula L.), growing in the eastern part of Latvia, have been studied using classical dendrochronological techniques. The high-frequency variation of tree-ring width (TRW) of hybrid poplar from both sites was similar, but it differed from hybrid aspen due to the diverse parental species and geographic location of the stands. Nevertheless, some common tendencies in TRW were observed for both hybrids. Climatic factors influencing TRW were generally similar for both hybrids, but their composition differed. The strength of climate-TRW relationships was similar, but the hybrid poplar was affected by a higher number of climatic factors. Hybrid poplar was sensitive to factors related to water deficit in late summer in the previous and current years. Hybrid aspen was sensitive to conditions in the year of formation of tree-ring. Both hybrids also displayed a reaction to temperature during the dormant period. The observed climate-growth relationships suggest that increasing temperatures might burden the radial growth of the studied hybrids of Populus.

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Aspects of the cold-hardiness mechanism in plants

Cited by 115 publications

References 209 publications

Kiwifruit: Frost tolerance of plants in controlled frost conditions

Kiwifruit: Frost tolerance of plants in controlled frost conditions

Ribosomal Changes during Induction of Cold Hardiness in Black Locust Seedlings

Effect of climatic factors on tree-ring width of <i>Populus</i> hybrids in Latvia

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