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甘蓝型油菜与Brassica maurorum的异源六倍体后代及BC_2细胞学分析 被引量:1
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作者 姚行成 葛贤宏 李再云 《中国油料作物学报》 CAS CSCD 北大核心 2012年第1期16-20,共5页
将甘蓝型油菜品种中油821(2n=38,AACC)与芸薹属野生资源Brassica maurorum(2n=16,MM)的三倍体杂种进行染色体加倍,得到异源六倍体(2n=54,AACCMM)。该多倍体雄性高度不育,雌性育性极低。在其花粉母细胞的减数分裂终变期,染色体平均配对... 将甘蓝型油菜品种中油821(2n=38,AACC)与芸薹属野生资源Brassica maurorum(2n=16,MM)的三倍体杂种进行染色体加倍,得到异源六倍体(2n=54,AACCMM)。该多倍体雄性高度不育,雌性育性极低。在其花粉母细胞的减数分裂终变期,染色体平均配对构型为1.17Ⅰ+20.71Ⅱ+0.56Ⅲ+2.25Ⅳ+0.08Ⅴ+0.06Ⅵ。用甘蓝型油菜与该多倍体连续回交2次,均需借助幼胚培养才得到后代植株,BC1、BC2植株均雄性不育,雌性育性很低。BC2植株的形态特征接近甘蓝型油菜,但各植株形态有明显差异。基因组原位杂交分析表明,BC2植株含有2~5条M基因组的染色体,甘蓝型油菜染色体多配对形成二价体,附加的染色体多以单价体形式存在,或与甘蓝型油菜染色体发生联会配对。 展开更多
关键词 甘蓝型油菜 BRASSICA maurorum 多倍体 基因组原位杂交
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Alhagi maurorum aqueous extract protects against norfloxacin-induced hepato-nephrotoxicity in rats
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作者 Hesham Ahmed Khalifa Shimaa Ibrahim Shalaby Ahmed Shaban Abdelaziz 《Chinese Herbal Medicines》 CAS 2020年第2期156-162,共7页
Objectives:While the protective effects of Alhagi maurorum have been shown against various ailments,its role against norfloxacin-induced adverse effects has not been studied.The current study was conducted to determin... Objectives:While the protective effects of Alhagi maurorum have been shown against various ailments,its role against norfloxacin-induced adverse effects has not been studied.The current study was conducted to determine the effect of A.maurorum aqueous extract against norfloxacin-induced side effects in rats.Methods:Twenty-four male albino rats were randomly assigned into four groups,which received normal saline,norfloxacin(50 mg/kg b.wt orally once a day),A.maurorum aqueous extract(300 mg/kg b.wt orally once a day),and norfloxacin with A.maurorum aqueous extract by the same previous mentioned dosages.Blood samples were collected for hematological examination to evaluate liver and kidney function tests.Hepatic and renal tissue samples were obtained to assess antioxidant activity and histopathological examination.Results:A.maurorum aqueous extract significantly ameliorated norfloxacin-induced elevation in tissue malondialdehyde,and reduction in tissue antioxidant enzymes such as catalase,glutathione peroxidase,and superoxide dismutase activities as well as reduced glutathione concentration.Concurrent administration of A.maurorum aqueous extract with norfloxacin significantly reduced serum alkaline phosphatase,aminotransferases,urea,creatinine,and uric acid and increased RBCs count,Hb concentration,PCV,leucocyte,and monocyte counts compared with the norfloxacin-treated group.Co-administration of A.maurorum aqueous extract with norfloxacin prevented the degenerative changes induced by norfloxacin alone in liver and kidney tissues.The phytochemical profile of the extract showed the presence of carbohydrates,alkaloids,saponins,tannins,phenolics,and flavonoids.Conclusion:These findings indicated that A.maurorum possesses potent antioxidant activities and could be used to attenuate norfloxacin-induced side effects. 展开更多
关键词 Alhagi maurorum Boiss anti-oxidant enzymes CREATININE MALONDIALDEHYDE serum alkaline phosphatase
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干旱荒漠区骆驼刺资源及利用 被引量:15
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作者 董志国 张苏江 《中国草地》 CSCD 2000年第4期73-75,共3页
骆驼刺是一种耐盐、抗旱、蛋白质含量丰富的多年生豆科牧草。利用干旱荒漠区大量盐碱地和荒地等未利用土地进行人工种植 ,可以改土治沙 ,抑制草场退化 ,提供饲料 ,实现经济。
关键词 骆驼刺 经济价值 利用 干旱荒漠区
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骆驼刺染色体数目及核型分析 被引量:2
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作者 李红 赵淑文 乌都苏布德 《干旱区资源与环境》 CSSCI CSCD 北大核心 2012年第8期176-179,共4页
采用常规根尖压片法对分布于内蒙古自治区阿拉善荒漠地区的骆驼刺(Alhagi maurorum Medil.var.sparsifolium(Shap.)Yakovl.)染色体数目与核型进行了研究分析。结果表明:骆驼刺染色体数目为16条,二倍体。核型公式为2n=2x=16=12m+4sm,核... 采用常规根尖压片法对分布于内蒙古自治区阿拉善荒漠地区的骆驼刺(Alhagi maurorum Medil.var.sparsifolium(Shap.)Yakovl.)染色体数目与核型进行了研究分析。结果表明:骆驼刺染色体数目为16条,二倍体。核型公式为2n=2x=16=12m+4sm,核型不对称系数为58.86%,核型类型属于2B型。 展开更多
关键词 骆驼刺 染色体 核型分析
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