Lipid changes in barley seedlings subjected to water and cold stress

̃iga, Gustavo E. Zu ́n; Fernández, Julio; Cristi, Raul; Alberdi, Miren; Corcuera, Luís J.

doi:10.1016/0031-9422(90)80162-a

Cited by 28 publications

(7 citation statements)

References 28 publications

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“…The increased levels of lipid found in C. melo and Ecballium leaves, four days after rewatering, may represent increased photosynthetic production during the recovery period, either already incorporated into membrane lipids or stored as carbon reserve, as growth resumes. Few papers report a decrease of membrane polar lipids as distinct from total lipids (Klein et al, 1986;Premachandra et al, 1991;Zuniga et al, 1990). The changes in proportions of constituent FA, recorded in this study, give some indications of metabolic adjustments taking place at different water stress levels.…”

Section: Discussionsupporting

confidence: 59%

Effects of water stress and recovery periods on total lipid and fatty acids in Cucumis melo var. flexuosus (L.) Naudin and related species

Lösel¹,

Akinci²

2019

PAK.J.BOT.

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Water stress (drought) is one of the most important abiotic factors influencing plant growth parameters, accompanied by changes in biomass ratios and physiological and biochemical alterations depending on the severity and duration of drought exposure, as well as plant species. Total lipids and fatty acids (FA) are major components of the plant cell, and can be used to understand changes in cell lipid concentrations under water stress. In this study, the aim was to investigate the responses of total and fatty acids (FA) being major components of the plant cell, are required to be understood of changes of compositions of cell lipids under two water stress levels and recovery periods by rewatering of Cucurbitaceae members. Total lipid and gas liquid chromatography (GLC) analyses indicated that the species behaved differently with respect to water stress levels and recovery periods. Linolenic (18:3) and eiocosenoic acid (20:1) accounted for the biggest proportion of FA in all species. The major effect of water stress was seen in proportions of 18:3, which increased significantly in leaves of Cucurbita pepo under moderate stress (MS) and severe stress (SS) , whereas it remained unchanged in Cucumis melo under both treatments, but decreased significantly under SS in Ecballium elaterium. During recovery, further changes in FA percentages occurred at different rates in individual species. For the short recovery period determined after 2 days rewatering, the total leaf lipid content increased significantly in previously stressed plants. The effect of the longer recovery period (4d rewatering), was accompanied by a continued increase of total lipid content in all plants in previous MS and SS treatments, and was significant in MS and SS Ecballium compared to control plants.

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Section: Discussionsupporting

confidence: 59%

Effects of water stress and recovery periods on total lipid and fatty acids in Cucumis melo var. flexuosus (L.) Naudin and related species

Lösel¹,

Akinci²

2019

PAK.J.BOT.

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“…In barley these factors include genotype, salt stress, nitrogen supply, abiotic stresses such as salt, water, cold and osmotic stress, aphid infestation and heavy metal toxicity (aluminium, copper and cadmium) (Zúniga et al, 1990;Cabrera et al, 1994;Murelli et al, 1995;Olien & Clark, 1995;Teulat et al, 1997;Amer, 1999;Guo et al, 2007;Widodo et al, 2009). In barley these factors include genotype, salt stress, nitrogen supply, abiotic stresses such as salt, water, cold and osmotic stress, aphid infestation and heavy metal toxicity (aluminium, copper and cadmium) (Zúniga et al, 1990;Cabrera et al, 1994;Murelli et al, 1995;Olien & Clark, 1995;Teulat et al, 1997;Amer, 1999;Guo et al, 2007;Widodo et al, 2009).…”

Section: Factors Affecting Sugar Levels In Cropsmentioning

confidence: 99%

“…Sugar concentrations in rye and barley are affected by similar factors to those affecting sugar concentrations in wheat. In barley these factors include genotype, salt stress, nitrogen supply, abiotic stresses such as salt, water, cold and osmotic stress, aphid infestation and heavy metal toxicity (aluminium, copper and cadmium) (Zúniga et al, 1990;Cabrera et al, 1994;Murelli et al, 1995;Olien & Clark, 1995;Teulat et al, 1997;Amer, 1999;Guo et al, 2007;Widodo et al, 2009). As with wheat, the focus of most of the research has been the vegetative parts of the plant.…”

Section: Factors Affecting Sugar Levels In Cropsmentioning

confidence: 99%

Sugars in crop plants

Halford

Curtis

Muttucumaru

et al. 2010

Annals of Applied Biology

167

123

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We review current knowledge of the most abundant sugars, sucrose, maltose, glucose and fructose, in the world's major crop plants. The sucroseaccumulating crops, sugar beet and sugar cane, are included, but the main focus of the review is potato and the major cereal crops. The production of sucrose in photosynthesis and the inter-relationships of sucrose, glucose, fructose and other metabolites in primary carbon metabolism are described, as well as the synthesis of starch, fructan and cell wall polysaccharides and the breakdown of starch to produce maltose. The importance of sugars as hormone-like signalling molecules is discussed, including the role of another sugar, trehalose, and the trehalose biosynthetic pathway. The Maillard reaction, which occurs between reducing sugars and amino acids during thermal processing, is described because of its importance for colour and flavour in cooked foods. This reaction also leads to the formation of potentially harmful compounds, such as acrylamide, and is attracting increasing attention as food producers and regulators seek to reduce the levels of acrylamide in cooked food. Genetic and environmental factors affecting sugar concentrations are described.

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“…However, non-lethal levels of water loss do not always induce unsaturation. In A. thaliana, the disaturated molecular species of PE and PC increase in leaves, whereas PE and PC species containing 5 or 6 double bonds decrease (Tarazona, Feussner, & Feussner, 2015), and in barley PEs in leaves were characterized by a decrease in 18:2-and 18:3-fatty acids and an increase in 18:0-fatty acids (Zuniga, Fernandez, Cristi, Alberdi, & Corcuera, 1990).…”

Section: Figurementioning

confidence: 99%

Glycerolipid analysis during desiccation and recovery of the resurrection plant Xerophyta humilis (Bak) Dur and Schinz

Tshabuse

Farrant

Humbert

et al. 2017

Plant Cell & Environment

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Xerophyta humilis is a poikilochlorophyllous monocot resurrection plant used as a model to study vegetative desiccation tolerance. Dehydration imposes tension and ultimate loss of integrity of membranes in desiccation sensitive species. We investigated the predominant molecular species of glycerolipids present in root and leaf tissues, using multiple reaction monitoring mass spectrometry, and then analysed changes therein during dehydration and subsequent rehydration of whole plants. The presence of fatty acids with long carbon chains and with odd numbers of carbons were detected and confirmed by gas chromatography. Dehydration of both leaves and roots resulted in an increase in species containing polyunsaturated fatty acids and a decrease in disaturated species. Upon rehydration, lipid saturation was reversed, with this being initiated immediately upon watering in roots but only 12-24 hr later in leaves. Relative levels of species with short-chained odd-numbered saturated fatty acids decreased during dehydration and increased during rehydration, whereas the reverse trend was observed for long-chained fatty acids. X. humilis has a unique lipid composition, this report being one of the few to demonstrate the presence of odd-numbered fatty acids in plant phosphoglycerolipids.

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Lipid changes in barley seedlings subjected to water and cold stress

Cited by 28 publications

References 28 publications

Effects of water stress and recovery periods on total lipid and fatty acids in Cucumis melo var. flexuosus (L.) Naudin and related species

Effects of water stress and recovery periods on total lipid and fatty acids in Cucumis melo var. flexuosus (L.) Naudin and related species

Sugars in crop plants

Glycerolipid analysis during desiccation and recovery of the resurrection plant Xerophyta humilis (Bak) Dur and Schinz

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