共查询到18条相似文献,搜索用时 687 毫秒
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黑鲍鱼菇是四川农业大学农学院应用微生物系教师采用细胞工程技术选育的食用菌新品种,又名晚生北风菌、冻菌、黑菇、黑鸡菇等,是北风菌中的珍品.其菌盖黑色、菌肉乌黑色、菌褶褐黑色、菌柄乌黑、基部略呈白色,子实体柄短、盖大、肉厚、质嫩,食之鲜香滑嫩、细腻爽口、具鲍鱼鲜味,口感远远超过平菇甚至凤尾菇、香菇等大多数食用菌类,是满足人们对黑色食品强烈需求的高档菇类,深受各地消费者喜爱.黑鲍鱼菇含有18种氨基酸和多种复合型维生素,含有人体必需的8种氨基酸和丰富的多糖体,富含钙、锌、铜、硒等微量元素,对增强人体免疫力、改善肾功能有非常好的作用.目前,该产品供不应求,是能给菇农带来较大经济效益的食用菌新品种. 相似文献
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利用绿巨人的盆栽大苗作外植体母株进行茎尖培养,经试验得出最佳分化培养基、最佳生根培养基和最佳移栽方法,组培“三率”分别为506% ,8020% ,9000% 。由此,为绿巨人的工厂化快速繁殖提供了技术保证。 相似文献
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以路易斯安娜鸢尾顶芽为外植体,利用不同激素配比诱导不定芽,定期测量组培苗株高、蓬径、主茎长和叶片数,观察组培苗的染色体数、叶片结构和开花性状等。结果表明:路易斯安娜鸢尾顶芽诱导率最高的培养基为MS+6-BA 2.0 mg.L-1+NAA 0.5 mg.L-1,产生有效生产苗最多的培养基为MS+6-BA 0.5 mg.L-1+NAA 0.2 mg.L-1,最佳生根培养基为1/2MS+NAA 0.5 mg.L-1+活性碳0.5 g.L-1。2年生组培苗平均株高达到71.6 cm,平均蓬径达到60.9 cm,叶片维持在6~12片,冬季仍有绿叶。组培苗染色体个数、叶片通气组织、开花性状等均与母株一致,表明路易斯安娜鸢尾组培苗可保持其母株的观赏性状和水生习性,可通过组培快速繁殖大规模生产优质种苗。 相似文献
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The focus of the current project was to establish somatic embryogenesis protocols for the tropical pine species Pinus oocarpa using immature zygotic embryos (ZEs) as explants. Somatic embryogenesis is best supported by mimicking natural seed-embryo developmental conditions, through a tissue culture medium formulation based on the mineral content of the seed nutritive tissue [megagametophyte (MG)]. A novel culture medium (P. oocarpa medium, PO) was tested in combination with different plant growth regulator (PGR) concentrations and compared with standard Pinus taeda media for the initiation of somatic embryogenesis from immature ZEs of P. oocarpa. Immature MGs containing immature ZEs of two mother trees were used with 12 and 8% extrusion rates for mother tree genotypes 3 and 5, respectively. In both mother trees the percentage capture was 2%. Multiplication of two captured cell lines (T5C2S01 and T5C1S12) was improved by lowering the concentrations of PGRs to 2.5 μM each 2,4-dichlorophenoxyacetic acid and abscisic acid (ABA) plus 1.0 μM each 6-benzylaminopurine and kinetin. Mature somatic embryos formed on 40 μM ABA, 6% (w/v) maltose, 12% (w/v) PEG 8000 and 0.6% (w/v) Phytagel. While PO medium appeared suboptimal for somatic embryo induction, it did exhibit potential for enhanced culture proliferation and subsequent improved maturation with cell line T5C2S01, where microscopic analysis revealed better embryo morphology on PO medium than on 1250 medium. However, this enhancement was not observed with cell line T5C1S12. Germination was preceded by partial desiccation for a period of 2-3 weeks before transferring the embryos to germination medium. Germination was observed after 7 days under low light, and apical primordia slowly expanded after transfer to ex vitro conditions. To our knowledge, this is the first report on the production of somatic seedlings in P. oocarpa. 相似文献
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为了给山杏快速繁殖提供理论依据,以山杏茎尖和茎段为外植体,以MS为基本培养基,对消毒方式、初代培养基激素配比、分化培养基激素配比和生根培养基激素配比进行筛选。结果表明,茎尖和当年生茎段经75%酒精处理30 s,0.2%升汞消毒6 min,再用2%Na Cl O处理4 min,其诱导效果最佳。茎尖初代培养最佳激素配比为6-BA 0.5 mg/L+NAA 0.2 mg/L;茎尖愈伤组织分化培养最佳激素配比为6-BA 0.2 mg/L+NAA 0.1 mg/L;茎段初代培养最佳培养基激素配比为6-BA 0.5 mg/L+NAA 0.1 mg/L;1/2MS+IBA 0.2 mg/L为最佳生根培养基。 相似文献
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以丽格海棠的叶片、叶柄和茎段作为外植体进行组织培养,研究适宜丽格海棠组织培养的最佳外植体、不同部位外植体不定芽分生的最佳培养基、继代增殖的培养基和组培苗的生根培养基。结果表明:不同部位外植体不定芽的再生率:叶片>茎段>叶柄,叶片的最佳培养基为:MS+1mg/LTDZ+0.1mg/L2,4-D或MS+1mg/L6-BA+0.1mg/LTDZ,叶柄的最佳培养基为:MS+1mg/L6-BA+0.1mg/LTDZ,茎段的最佳培养基:MS+1mg/LTDZ+0.1mg/L2,4-D或MS+1mg/L6-BA+0.1mg/LTDZ;不定芽继代增殖的最佳培养基为MS+2mg/L6-BA+0~0.1mg/LNAA;组培苗生根的最佳培养基比为MS+0.1~0.3mg/LIBA。 相似文献