Effects of cold stress on alterations of physiochemical and chemical properties of rice polysaccharides

Chang, Maria; Chien, Wei-Fu; Chao, Chi-Hsein; Lu, Mei-Kuang

doi:10.1016/j.carbpol.2009.11.035

Cited by 9 publications

(8 citation statements)

References 20 publications

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“…Cold acclimation alters the cell wall polysaccharide composition and activities of cell wall‐modifying enzymes to increase cell wall strength and decrease cell wall pore size (Rajashekar & Lafta ). Plant resistance to cold stress depends on tissue morphology and the mechanical properties of the cell wall (Yamada et al, ; Chang et al, ). Dongnongdongmai 2 (DN2), which was derived from Dongnongdongmai 1 (DN1), is a winter wheat cultivar that survives in the severely cold environment of Heilongjiang Province, China.…”

Section: Introductionmentioning

confidence: 99%

Overexpression of paralogues of the wheat expansin gene TaEXPA8 improves low‐temperature tolerance in Arabidopsis

Peng

Wang

et al. 2019

Plant Biol J

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Low temperature is one of the important factors limiting wheat yield in cold regions.Expansins are nonenzymatic proteins that loosen cell walls and play important roles in diverse biological processes related to cell wall modification, including development and stress tolerance. Many studies have shown that expansins are involved in resistance to various abiotic stresses, such as heat and drought. However, the role of expansins in response to low-temperature stress remains unclear.• Based on our previous transcriptome data of a winter wheat cultivar Dongnongdongmai 2 (DN2), we found that one of the expansin genes, TaEXPA8, was significantly induced by low temperature, indicating a role for TaEXPA8 in cold resistance. In this study, the paralogous TaEXPA8 genes TaEXPA8-A, TaEXPA8-B and TaEXPA8-D were cloned by RT-PCR. These three genes were then transformed into Arabidopsis by the floral dip method. Expression patterns of TaEXPA8 genes in different tissues and in response to several abiotic stresses and hormones were detected by quantitative realtime PCR (qRT-PCR).• The results showed that TaEXPA8-A and TaEXPA8-B were expressed mainly in roots, while TaEXPA8-D was expressed predominantly in flowers. TaEXPA8 genes were induced by low-temperature and drought. The overexpression of TaEXPA8-B and TaEXPA8-D enhanced low-temperature resistance and had increased superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) activity and soluble protein, MDA and proline content.• In summary, our study suggested that the expansins TaEXPA8-B and TaEXPA8-D are involved in the response to low temperature and possibly play a role in cold resistance by activating the protective enzyme system.

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Section: Introductionmentioning

confidence: 99%

Overexpression of paralogues of the wheat expansin gene TaEXPA8 improves low‐temperature tolerance in Arabidopsis

Peng

Wang

et al. 2019

Plant Biol J

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“…The classical triphasic time course of seed imbibition reflects the initial rapid absorption of water by the dry seed (Phase I), followed by a period of variable length where seed water content is relatively constant (Phase II), and a resumption of water uptake associated with expansion and growth of the embryo (Phase III) [26]. The restoration of the cell membrane, and DNA and protein synthesis using existing mRNAs occurs in the phase I, while mitochondrial synthesis and protein synthesis using newly synthesized mRNAs commence in phase II [13]. Within 20 min of imbibition at 25°C, an extensive reorganization of membrane structures occurs in the outer layers of cells in soybean seeds [10].…”

Section: Low Temperature Effects Seed Germinationmentioning

confidence: 99%

“…Mature seed of a flowering plant contains an embryo; a non-growing plant axis, which resumes its growth when placed in physiologically favourable conditions for plant seed germination [12]. Germination incorporates those events that commence with imbibition by the quiescent dry seed and terminate with the elongation of the embryonic axis [13]. Timing of germination is determined by the temperature and water potential thresholds for radical emergence [14,15].…”

Section: Low Temperature Effects Seed Germinationmentioning

confidence: 99%

Engineering Germination Fitness for Sub-Physiological Temperatures in Plants

Javeed¹,

Cheng²,

Song³

et al. 2012

Int J Mol Biol

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Abstract-Germination is a key event in plant life cycle and imbibition temperature is an important factor for the major reorganization processes in the germinating seeds. Sub-physiological temperature at this stage affects virtually all aspects of cellular function including protein folding, kinetic parameters of membrane fluidity, protein assembly, and general metabolic processes. In this article we will review the research which has been carried out to decipher the basic mechanisms of low temperature (LT) stress with special emphasis on germination. With the better understanding of LT tolerance in some plant species we will also discuss how these attributes can be transferred in the important food crops to attain better germination stamina at sub-physiological temperatures. At germination stage, the cellular machinery in the embryo is not at its proper place and is going through reorganisation and any environmental severity has devastating effects on the fragile plant. But LT resistant species have evolved the ability to acclimatise, with the remodelling of cell and tissue structures and the reprogramming of metabolism and gene expression. Metabolic networks are redirected towards the synthesis of cryoprotectant molecules, which in association with other proteins bring about physical and biochemical restructuring of cell membranes through changes in the lipid composition and induction of other non-enzymatic proteins that alter the freezing point of water. Genetic engineering of crops for enhanced seed germination performance will certainly help to achieve optimum agricultural yields.. Germination physiology in low temperatureAll environmental stresses disrupt the normal functioning of a living system. To re-establish metabolic homeostasis, living systems require an adjustment of metabolic pathways in a process usually referred to as acclimation. For temperate plants, low temperature (LT) is a major non-living element of the environmental that affects water and nutrient uptake, membrane fluidity and protein and nucleic acid conformation, drastically influencing cellular metabolism directly by reducing the rates of biochemical reactions [1], accompanied by changes in the transcriptome, proteome and metabolome [2]. Chilling temperatures (0 to 15°C) frequently occur in nature and affect many species of plants, especially those of tropical origin (such as rice, corn, tomato and soybean), by causing wilting, chlorosis, or necrosis, thus restricting their growth and development. Metabolic rates are lowered which create energy imbalance. Freezing (0°C and below) temperatures cause membrane injury [3], decrease the respiration rate and ATP content [4], resulting in poor germination, reduced seedling emergence, decreased seedling vigour, and ultimately severe loss in yield of the food crops of tropical and subtropical origins [5][6][7][8][9]. Embryos, excised from seed coats of soybeans, leak profusely during the first minutes of imbibition. In the embryos imbibed at 10°C or lower, disproportionately more solutes leak ...

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“…[1] Glick, B.R., Penrose, D.M., Li, J., "A model for the lowering of plant ethylen concentrations by plant growth-promoting bacteria" Journal of Theoretical Biology, 190: [63][64][65][66][67][68]1998 …”

Section: Kaynaklarmentioning

confidence: 99%

Sarımsak Yetiştiriciliğinde Farklı Bakteri Biyoformülasyonu Uygulamalarının Bitki Gelişimi Parametreleri, Verim ve Enzim Düzeyleri Üzerine Etkisi

Esringü

Kotan²,

Bayram³

et al. 2016

Nevşehir Bilim Ve Teknoloji Dergisi

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The Effect of Different Bacteria Biofotmulation Applications on Plant Growth, Yield And Enzyme Levels in Garlic Cultivation AbstractIn this study, we have prepared 3 different bacteria bioformulation (F1, F2 and F3) by using a total 19 bacteria isolates belonging to Agrobacterium sp., Bacillus sp., Pantoea sp.and Pseudomonas sp. chosen and identidfied 1248 bacteria isolate from underground or aboveground parts of the wild and cultivated plants in several studies conducted previously. Cloves of garlic (Allium sativum L.) that had been submerged into these bioformulations were potted and had been determined their effects on plant height, chlorophyll level and some enzyme (catalase, peroxidase, polyphenol oxidase and superoxide dismutase) activities. It has been found out that all bacteria formulation treatments made important contributions to the plant growth of garlic compared to the control, and caused important changes in the plant enzyme levels.As a result, it is thought that B2 formulation, among the three bacteria bioformulations tested, could be used a microbial fertilizer in garlic agriculture due to its plant growth parameters and enzyme levels in plant.

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Effects of cold stress on alterations of physiochemical and chemical properties of rice polysaccharides

Cited by 9 publications

References 20 publications

Overexpression of paralogues of the wheat expansin gene TaEXPA8 improves low‐temperature tolerance in Arabidopsis

Overexpression of paralogues of the wheat expansin gene TaEXPA8 improves low‐temperature tolerance in Arabidopsis

Engineering Germination Fitness for Sub-Physiological Temperatures in Plants

Sarımsak Yetiştiriciliğinde Farklı Bakteri Biyoformülasyonu Uygulamalarının Bitki Gelişimi Parametreleri, Verim ve Enzim Düzeyleri Üzerine Etkisi

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