麦类作物学报
麥類作物學報
맥류작물학보
JOURNAL OF TRITICEAE CROPS
2009年
6期
1022-1026
,共5页
周如美%张永泰%李爱民%陆成彬%熊飞%陈刚%王忠%孟秀蓉%帅建军
週如美%張永泰%李愛民%陸成彬%熊飛%陳剛%王忠%孟秀蓉%帥建軍
주여미%장영태%리애민%륙성빈%웅비%진강%왕충%맹수용%수건군
小麦%孕穗氮肥%蛋白质体%蛋白质组分
小麥%孕穗氮肥%蛋白質體%蛋白質組分
소맥%잉수담비%단백질체%단백질조분
Booting nitrogen%Protein body%Protein components%Wheat quality
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.
為瞭揭示氮素對小麥蛋白質品質的調節效應,以颺麥9號為材料,研究瞭孕穗期施氮對小麥籽粒蛋白質組分積纍及胚乳細胞蛋白質體髮育的影響.結果錶明:(1)隨花後天數的增加,小麥籽粒清蛋白含量呈現由高到低的變化,毬蛋白含量先下降,後期又升高;而醇溶蛋白和麥穀蛋白含量基本呈現由低到高的變化;(2)孕穗期施氮能顯著提高醇溶蛋白和麥穀蛋白含量,而對清蛋白和毬蛋白含量影響較小;(3)小麥胚乳細胞中蛋白質體約在花後12 d齣現,花後16 d蛋白質體開始大量閤成,其數目迅速增多,體積變大.成熟後期,蛋白質體因胚乳細胞中大小澱粉體的充實被擠成片層結構而填充在澱粉體縫隙中.胚乳邊緣細胞中蛋白質體大而多,中部細胞蛋白質體小而少;(4)孕穗期施氮可促進蛋白質體的形成,使其數目增多.
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.