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MedChemExpress LLC
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产品分类
Helianthus annuus L (向日葵) 别名: sunflower提取物
MCE 国际站:Helianthus annuus L
品牌:MedChemExpress (MCE)
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文献和实验Sunflower (Helianthus annuus L.)
Sunflower (Helianthus annuus L.) is considered one of the recalcitrant species in terms of transformation and regeneration. A routine transformation system of this crop requires competent cell cultures for efficient plant regeneration
亦称葵花。菊科,向日葵属。 1年生草本,高 1~ 3米。茎直立,粗壮,圆形多棱角,被白色粗硬毛。叶通常互生,心状卵形或卵圆形,先端锐突或渐尖,有基出 3脉,边缘具粗锯齿,两面粗糙,被毛,有长柄。头状花序,极大,直径 10~ 30厘米,单生于茎顶或枝端,常下倾。总苞片多层,叶质,覆瓦状排列,被长硬毛,夏季开花,花序边缘生黄色的舌状花,不结实。花序中部为两性的管状花,棕色或紫色,结实。瘦果,倒卵形或卵状长圆形,稍扁压,果皮木质化,灰色或黑色,俗称葵花子。性喜温暖,耐旱。原产北美
Sunflower (Helianthus annuus L.) has been cultivated both as an oilseed and as an ornamental plant. Several protocols have been described for the micropropagation, direct plant regeneration by organogenesis being acceptable for this plant
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