CAJ | 학술논문

为了揭示氮素对小麦蛋白质品质的调节效应,以扬麦9号为材料,研究了孕穗期施氮对小麦籽粒蛋白质组分积累及胚乳细胞蛋白质体发育的影响.结果表明:(1)随花后天数的增加,小麦籽粒清蛋白含量呈现由高到低的变化,球蛋白含量先下降,后期又升高;而醇溶蛋白和麦谷蛋白含量基本呈现由低到高的变化;(2)孕穗期施氮能显著提高醇溶蛋白和麦谷蛋白含量,而对清蛋白和球蛋白含量影响较小;(3)小麦胚乳细胞中蛋白质体约在花后12 d出现,花后16 d蛋白质体开始大量合成,其数目迅速增多,体积变大.成熟后期,蛋白质体因胚乳细胞中大小淀粉体的充实被挤成片层结构而填充在淀粉体缝隙中.胚乳边缘细胞中蛋白质体大而多,中部细胞蛋白质体小而少;(4)孕穗期施氮可促进蛋白质体的形成,使其数目增多.
위료게시담소대소맥단백질품질적조절효응,이양맥9호위재료,연구료잉수기시담대소맥자립단백질조분적루급배유세포단백질체발육적영향.결과표명:(1)수화후천수적증가,소맥자립청단백함량정현유고도저적변화,구단백함량선하강,후기우승고;이순용단백화맥곡단백함량기본정현유저도고적변화;(2)잉수기시담능현저제고순용단백화맥곡단백함량,이대청단백화구단백함량영향교소;(3)소맥배유세포중단백질체약재화후12 d출현,화후16 d단백질체개시대량합성,기수목신속증다,체적변대.성숙후기,단백질체인배유세포중대소정분체적충실피제성편층결구이전충재정분체봉극중.배유변연세포중단백질체대이다,중부세포단백질체소이소;(4)잉수기시담가촉진단백질체적형성,사기수목증다.
To clarify the adjustment of nitrogen on the wheat protein quality,Yangmai 9 was chosen to study the effect of booting nitrogen on accumulation of grain protein components and development of protein body in endosperm cells. The main results were as follows: (1) the accumulation of albumin and glutenin took on a decrease trend,while that of gliadin and globulin took on a increase trend. (2)Booting nitrogen could increase gliadin and globulin accumulation obviously,but less effects on albumin and glutenin accumulation. (3) In general,the protein bodies in endosperm cells appeared at 12th day after anthesis,their quantities increased rapidly and volumes turned bigger from 14th day after anthesis. In the later period of ripeness,the protein bodies were extruded and filled with amyloplast. The protein bodies in endosperm periphery were more and bigger while less and smaller in medium; (4)Booting nitrogen could accelerate the formation of protein bodies and increase their numbers.