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Monosaccharides transporters play important roles in assimilate supply for sink tissue development. In this study, a new monosaccharide transporter gene OsMST6 was identified from rice (Oryza sativa L.). The predicted OsMST6 protein shows typical features of sugar transporters and shares 79.6% identity with the rice monosaccharide transporter OsMST3. Heterologous expression in yeast (Saccharomyces cerevisiae...
Trehalose plays a protective role in yeast and microorganisms under abiotic stresses. However, little is known about its role in higher plants when subjected to environmental challenges. A systematic search of rice databases discovered a large TPS/TPP gene family in the rice genome, which is similar to that found in Arabidopsis thaliana, especially in the gene family structure. Expression analysis...
Drought and high-temperature stresses have been extensively studied; however, little is known about their combined impact on plants. In the present study, we determined the photosynthetic gas exchange, chlorophyll fluorescence, nitrogen level, and lipid peroxidation of the leaves of a perennial grass (Leymus chinensis (Trin.) Tzvel.) subjected to three constant temperatures (23, 29 and 32°C), and...
A cDNA sequence encoding a type-2 metallothionein (MT)-like protein, designated htMT2, was isolated from a Helianthus tuberosus L. tuber cDNA library. The isolated cDNA is 509bp, coding a 7.8-kDa polypeptide. Two partial genomic fragments covering the open reading frame of htMT2 were cloned by PCR. The fragments htMTG-1 (986bp) and htMTG-2 (982bp) contain three exons and two introns. The N- and C-terminal...
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