Antifreeze proteins in winter rye

Griffith, Marilyn; Antikainen, Mervi; Hon, Wai-Ching; Pihakaski-Maunsbach, Kaarina; Yu, Xiaoming; Chun, Jong Un; Yang, Dan

doi:10.1111/j.1399-3054.1997.tb04790.x

Cited by 128 publications

(50 citation statements)

References 38 publications

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“…A series of morphological, physiological, and biochemical changes occur in plant cells during cold acclimation (Guy 1990;Thomashow 1999;Zwiazek et al 2001). These changes include altered solution components in apoplastic space (Griffith et al 1997), enhanced rigidity of cell walls (Rajasheker and Lafta 1996), varied lipid composition and properties of plasma membranes and the membrane systems inside cells (Steponkus 1984;Uemura et al 1995), and increased concentration of compatible osmolytes in the intracellular environment (Guy 1990;Hare et al 1998).…”

Section: Introductionmentioning

confidence: 99%

Characterization of Picg5 novel proteins associated with seasonal cold acclimation of white spruce (Picea glauca)

Liu

Ekramoddoullah

Taylor

et al. 2004

Trees

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Four protein bands of 38, 34, 32 and 25 kDa (designated as Picg5a to Picg5d) were detected specifically with an antibody against a putative PR10 protein Picg1 in Picea glauca. The Picg5 proteins accumulated during cold acclimation in foliage and roots and showed polymorphism in the population. Only one Picg5 protein was expressed in each individual seedling. The Picg5 protein levels were positively correlated with freezing tolerance (R 2 =0.6, P<0.001). Two types of cDNA clones (designated as Picg5-1 and Picg5-2) were characterized after screening an expressed cDNA library with anti-Picg1 antibody. Compared to Picg5-1, Picg5-2 has a deletion of 123 nucleotides in the coding region. Picg5-1 and Picg5-2 shared 97-98% identity on the nucleotide and deduced amino acid sequence levels. Southern blot analysis suggested one or two copies of the Picg5 gene within the P. glauca genome. Recombinant proteins by expressing Picg5 cDNAs in Escherichia coli had the same antigenic binding property and molecular masses of natural proteins, suggesting that they encode Picg5 proteins. The amino acid sequence deduced from Picg5 cDNAs consisted of five or six copy repeat segments (termed QKA segments). A BLASTP search of GenBank data revealed that the Picg5 proteins were novel ones, only two QKA segments showing low similarity with the Ksegment of both dehydrin and rehydrin. Like protein accumulation, the Picg5 transcripts were up-regulated during cold acclimation. The expression pattern and unique features of protein structure suggest that the Picg5 proteins may have a function related to cold stress.

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Section: Introductionmentioning

confidence: 99%

Characterization of Picg5 novel proteins associated with seasonal cold acclimation of white spruce (Picea glauca)

Liu

Ekramoddoullah

Taylor

et al. 2004

Trees

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“…This review will focus on some of the current developments in our knowledge of AF(G)Ps. Recent reviews have addressed many aspects of AF(G)Ps [3,5,[8][9][10]. However, in various areas of study, our understanding of AF(G)Ps is progressing rapidly.…”

Section: Introductionmentioning

confidence: 99%

Structure, function and evolution of antifreeze proteins

Ewart

Lin

Hew

1999

CMLS, Cell. Mol. Life Sci.

230

154

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Antifreeze proteins bind to ice crystals and modify their growth. These proteins show great diversity in structure, and they have been found in a variety of organisms. The ice-binding mechanisms of antifreeze proteins are not completely understood. Recent findings on the evolution of antifreeze proteins and on their structures and mechanisms of action have provided new understanding of these proteins in different contexts. The purpose of this review is to present the developments in contrasting research areas and unite them in order to gain further insight into the structure and function of the antifreeze proteins.

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“…AFPs enable organisms to survive under freezing or subfreezing conditions [95]. Many wintering plants produce AFPs that have the capacity to adsorb onto the surface of ice crystals and change their growth [96].…”

Section: Antifreeze Proteinsmentioning

confidence: 99%

Role of Plant Metabolites in Abiotic Stress Tolerance Under Changing Climatic Conditions with Special Reference to Secondary Compounds

Ramakrishna

Ravishankar

2013

Climate Change and Plant Abiotic Stress Tolerance

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Plants produce diverse secondary plant products that are triggered by a wide range of abiotic factors, such as drought, salinity, UV light, temperature, and cold stress, to cope with environmental changes. Global changes in environmental conditions due to human activities result in elevated carbon dioxide (CO 2 ). Alterations in ozone, UV light, and temperature, and so on, appear to influence endogenous plant metabolites for adaptation. Moreover, plants have adapted to produce several metabolites that are species-specific and dependent on environmental factors. Various plant metabolites, such as polyamines, flavonoids, jasmonic acid, methyljasmonate, glycine betaine, and so on, have a protective role during abiotic stress. In order to cope with various stresses, plants execute various mechanisms, including scavenging of reactive oxygen species (ROS), production of antioxidants, maintenance of membrane stability, and accumulation or adjustment of compatible solutes. This chapter focuses on the role of plant metabolites for their adaptation with special reference to secondary compounds on major global change factors, such as elevated CO 2 , ozone, UV light, temperature, and cold. Introduction: Plant Secondary MetabolitesSecondary metabolites produced by higher plants play an important role in many complex biotic and abiotic interactions [1,2]. Most secondary metabolites are synthesized from the intermediates of primary carbon metabolism via phenylpropanoid, shikimate, mevalonate, or methyl-erythritol phosphate pathways [3]. Several plant secondary metabolites are used for the production of medicines, dyes, insecticides, flavors, fragrances, and food quality (taste, color, and smell) [4-6]. Accumulation of plant secondary metabolites often occurs in plants under stresses, including various elicitors or signal molecules, altogether playing a crucial role in the adaptation of plants to the environment and in overcoming stress conditions [7][8][9]. Abiotic stresses have an effect on different cellular processes, such as growth, 705

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Antifreeze proteins in winter rye

Cited by 128 publications

References 38 publications

Characterization of Picg5 novel proteins associated with seasonal cold acclimation of white spruce (Picea glauca)

Characterization of Picg5 novel proteins associated with seasonal cold acclimation of white spruce (Picea glauca)

Structure, function and evolution of antifreeze proteins

Role of Plant Metabolites in Abiotic Stress Tolerance Under Changing Climatic Conditions with Special Reference to Secondary Compounds

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