Frost-resistance and lipid composition of cold-hardened needles of chilean conifers

Latsague, Mirtha; Acevedo, H. Carhuancho; Fernández, Julio; Romero, Magdalena; Cristi, Raul; Alberdi, Miren

doi:10.1016/0031-9422(92)83698-x

Cited by 12 publications

(3 citation statements)

References 25 publications

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“…Similarly, chilling‐resistant cucumbers ( Cucumis sativus L.) and sweet peppers ( Capsicum annuum L.) have a greater amount of 18‐carbon unsaturated fatty acids than saturated fatty acids (Wang and Baker, 1979). Even findings from studies of freeze‐tolerant species reveal alterations in the degree of fatty acid saturation, but as part of a more complex response involving changes in membrane lipid composition (not observed in the present study), biosynthesis of osmoprotectants and hydrophilic proteins (Gerloff et al, 1966; Latsague et al, 1992; Palta et al, 1993). Furthermore, mechanistic investigations in cyanobacteria, protozoa, and plants confirm roles for fatty acid desaturation and acyl‐lipid desaturases in cold adaptation (Cossins, 1994; Nishida and Murata, 1996; Tasaka et al, 1996).…”

Section: Resultscontrasting

confidence: 43%

Changes in Membrane Polar Lipid Fatty Acids of Seashore Paspalum in Response to Low Temperature Exposure

Powell

Duncan

et al. 2002

Crop Science

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ters, however, these organs can be killed when the frost zone moves below the rhizome layer. Even during rela-Seashore paspalum (Paspalum vaginatum Sw.) is a warm-season tively mild winters, the crowns and rhizomes are suscepturfgrass, best known for its superior salt tolerance. Plants are subject tible to injury due to the cold. Reestablishment of damto injury during winter conditions along the northern boundary of aged turf is expensive both in terms of labor and plant their zone of adaptation. New cultivars that are more tolerant to low temperatures are needed for use in the transition zone. Cold material. Thus, a more complete understanding of the tolerance has been correlated with the degree of unsaturation in tolerance of warm season grasses to low temperatures membrane lipid fatty acids. Unsaturated fatty acids are thought to is needed to improve their utility and extend their range. aid in maintaining membranes in a fluid state necessary for biological Whereas most temperate perennial plants can survive functioning (homeophasic adaptation). The primary objective was extensive exposure to subfreezing conditions, most tropto characterize fatty acid composition of membrane lipids in three ical and a number of subtropical plants have little or no genotypes differing in cold tolerance. A second objective was to invescapacity to withstand freezing temperatures. A plant's tigate changes in fatty acid content in these genotypes during exposure ability to alter its physiology in response to low temperato low temperatures. Cold-treated plants were exposed to a 10-h ture, such that it can survive otherwise lethal temperaphotoperiod at 8؇/4؇C day/night temperatures and light intensity of tures, is called cold acclimation (hardening). The pro-250 mol m Ϫ2 s Ϫ1 photosynthetic photon flux density for 3 wk. Rhizomes and crowns were harvested at 7-d intervals. Total lipids were cess of cold acclimation occurs seasonally when plants extracted and the polar lipids separated by thin-layer chromatography. are exposed to low, nonfreezing temperatures beforeFatty acids were identified by gas chromatography (GC) and mass the onset of winter (Levitt, 1980). Some C4 grasses have spectroscopy. In all three genotypes, the two saturated fatty acids, been shown to cold acclimate (Anderson et al., 1988, palmitic acid and stearic acid, did not change during cold treatment. 1993). The biochemical changes accompanying acclima-The triunsaturated linolenic acid increased significantly during low tion to low temperature include alterations in soluble temperature exposure. The magnitude of change was greater in the carbohydrate content, synthesis, and conformation of finer-textured and more cold-tolerant PI 509018-1 ('SeaIsle1') than in proteins and changes in membrane lipid composition the intermediately cold-tolerant 'Adalayd' or in the cold-susceptible, and fatty acid saturation (Li, 1984; Sakai and Larcher, coarse-textured PI 299042. These findings suggest that accumulation 1987; Hallgren and Oquist, 1990). Many of the new of linolenic ac...

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Section: Resultscontrasting

confidence: 43%

Changes in Membrane Polar Lipid Fatty Acids of Seashore Paspalum in Response to Low Temperature Exposure

Powell

Duncan

et al. 2002

Crop Science

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“…Hence, it is unlikely that phospholipids accumulated due to P storage. Instead, phospholipid accumulation in poplar twigs can be associated with frost hardening ( Yoshida and Sakai, 1973 ; Latsague et al, 1992 ; Moellering et al, 2010 ). Moreover, it has to be taken into account that PC and PE are major extraplastidic lipids ( Nakamura, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

Metabolome and Lipidome Profiles of Populus × canescens Twig Tissues During Annual Growth Show Phospholipid-Linked Storage and Mobilization of C, N, and S

et al. 2018

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The temperate climax tree species Fagus sylvatica and the floodplain tree species Populus × canescens possess contrasting phosphorus (P) nutrition strategies. While F. sylvatica has been documented to display P storage and mobilization (Netzer et al., 2017), this was not observed for Populus × canescens (Netzer et al., 2018b). Nevertheless, changes in the abundance of organic bound P in gray poplar trees indicated adaptation of the P nutrition to different needs during annual growth. The present study aimed at characterizing seasonal changes in metabolite and lipid abundances in gray poplar and uncovering differences in metabolite requirement due to specific needs depending on the season. Seasonal variations in the abundance of (i) sugar-Ps and phospholipids, (ii) amino acids, (iii) sulfur compounds, and (iv) carbon metabolites were expected. It was hypothesized that seasonal changes in metabolite levels relate to N, S, and C storage and mobilization. Changes in organic metabolites binding Pi (Porg) are supposed to support these processes. Variation in triacylglycerols, in sugar-phosphates, in metabolites of the TCA cycle and in the amino acid abundance of poplar twig buds, leaves, bark, and wood were found to be linked to changes in metabolite abundances as well as to C, N, and S storage and mobilization processes. The observed changes support the view of a lack of any P storage in poplar. Yet, during dormancy, contents of phospholipids in twig bark and wood were highest probably due to frost-hardening and to its function in extra-plastidic membranes such as amyloplasts, oleosomes, and protein bodies. Consistent with this assumption, in spring sugar-Ps increased when phospholipids declined and poplar plants entering the vegetative growth period and, hence, metabolic activity increases. These results indicate that poplar trees adopt a policy of P nutrition without P storage and mobilization that is different from their N- and S-nutrition strategies.

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“…The small difference in composition of unsaturated fatty acid could lead to great changes in the phase transition temperature of membrane lipid. Afterwards it was found that a lot of plants had strong cold resistance by increasing the ratio of unsaturated fatty acids such as Hexadecanoic acid, (Z,Z)-9,12-Octadecadienoic acid, and (Z,Z,Z)-9,12,15-Octadecatrienoic acid in total fat [6] . There was a positive correlation between the increase of IUFA and cold resistance [7,8] .…”

Section: Introductionmentioning

confidence: 99%

Relations between Cold Resistance and Composition and Content of Fatty Acids in Leaves of <i>Toona sinensis</i> from Different Provenances

Wang

Yang

2013

AMR

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The annual seedlings of ten Toona Sinensis provenances were selected for the study of the relationship between cold resistance and fatty acid composition and content of leaves. The results indicated that the fatty acid composition was the same among different provenances. The main ones were Dodecanoic acid, Hexadecanoic acid, (Z,Z)-9,12-Octadecadienoic acid, (Z,Z,Z)-9,12,15-Octadecatrienoic acid, Octadecanoic acid and Eicosanoic acid. But there were evident differences in fatty acid content and index of unsaturated fatty acid (IUFA) among different provenances. The content of unsaturated fatty acid and the IUFA was smaller in southern provenances of Xiapu of Fujian, Qianxinan of Guizhou and Dongkou of Hunan than those of the other provenances from north .The fatty acid content and IUFA were higher in provenances whose cold resistance were stronger. And the results showed that the fatty acid content and IUFA had a positive correlation with cold resistance of Toona sinensis.

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Frost-resistance and lipid composition of cold-hardened needles of chilean conifers

Cited by 12 publications

References 25 publications

Changes in Membrane Polar Lipid Fatty Acids of Seashore Paspalum in Response to Low Temperature Exposure

Changes in Membrane Polar Lipid Fatty Acids of Seashore Paspalum in Response to Low Temperature Exposure

Metabolome and Lipidome Profiles of Populus × canescens Twig Tissues During Annual Growth Show Phospholipid-Linked Storage and Mobilization of C, N, and S

Relations between Cold Resistance and Composition and Content of Fatty Acids in Leaves of <i>Toona sinensis</i> from Different Provenances

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