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Sucrose Synthase, A Major Biomarker for SinkStrength in Cotton

机译:蔗糖合酶,棉花水槽强度的主要生物标志物

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Cotton seeds are unique in that photosynthetic assimilates are translocated in opposite directions to two strong active sinks, outwards to epidermal cells for fibre elongation and cellulose biosynthesis and inwards to filial tissues for embryonic development and oil biosynthesis. The regulation of resource partitioning between the developing embryo and the fibre cells is crucial in determining the fibre yield and seed quality and hence the survival of the species. Sucrose synthase plays a key role inmanaging 'the tug of war' for nutrients between the active sinks by maintaining the osmotic gradient through generation of hexoses and effectively supplying UDP glucose as substrate for cellulose synthase. This paper highlights the significance of SUS activity in cotton seed andfibre development.
机译:棉花种子的独特之处在于,光合同化物以相反的方向转移到两个强活性槽中,向外转移到表皮细胞中以进行纤维伸长和纤维素生物合成,并向内转移到孝子组织中以进行胚胎发育和油脂生物合成。发育中的胚胎与纤维细胞之间资源分配的调节对于确定纤维产量和种子质量以及物种的生存至关重要。蔗糖合成酶通过维持己糖生成的渗透压梯度,并有效地提供UDP葡萄糖作为纤维素合成酶的底物,在控制活性水槽之间的营养物的“拔河”中起着关键作用。本文强调了SUS活性在棉花种子和纤维发育中的重要性。

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