排序方式： 共有31条查询结果，搜索用时 15 毫秒
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【目的】鉴定1株巨大口蘑Tricholoma giganteum新的野生菌株,并优化其菌丝的最适培养基.【方法】以1株野生巨大口蘑为研究对象,采用组织分离法,从野生巨大口蘑子实体中分离纯化得到纯菌丝,利用分子生物学方法进行鉴定,通过测定菌丝生长速度、菌丝长势等指标对其进行培养条件研究,并运用均匀设计法对培养基进行优化,采用二次多项式逐步回归方法对试验结果进行分析.【结果和结论】该野生菌株经鉴定为巨大口蘑,Gene Bank编号为JX193694,命名为SCAU3,其菌丝生长的最适温度为30~32℃,最适p H为7~8,最佳碳源为麦芽糖,最佳氮源为酵母膏.经均匀设计法优化得到最适培养基组合:麦芽糖26 g·L-1,酵母膏2 g·L-1,Mg SO42.7 g·L-1,KH2PO41.8 g·L-1,维生素B1 16 mg·L-1,p H7.7. 相似文献
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人际传播是"21世纪海上丝绸之路"的关键环节。"21世纪海上丝绸之路"沿线各国在意识形态、宗教信仰等方面存在诸多差异,且地区关系复杂,阻碍诸国人际传播。茶文化中蕴含"和、礼、理、容"等促进人际传播的特性。通过发挥海上丝绸之路茶历史文化作用、继承和创新茶文化、举办茶文化交流活动、创新茶文化产品等措施,可以增强各国人际传播效果。 相似文献
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Wang Shuilian Zhang Hongliang Tian Hongzhi Chen Xiaoli Li Shujing Lu Yongqiang Li Lanqi Wang Dong 《Tropical animal health and production》2020,52(5):2265-2271
Tropical Animal Health and Production - Estrus identification is important in dairy cow production. At present, estrus identification is automated with a pedometer or accelerometer and the results... 相似文献
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Wang Shuilian Zhang Hongliang Kou Hongxiang Chen Xiaoli Lu Yongqiang Li Lanqi Wang Dong 《Tropical animal health and production》2020,52(5):2205-2212
Tropical Animal Health and Production - With the development of standardization and scaling in the dairy farming industry, timely and accurate pregnancy diagnosis is required to improve the... 相似文献
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Haifeng Chen Zhihui Shan Aihua Sha Baoduo Wu Zhonglu Yang Shuilian Chen Rong Zhou Xinan Zhou 《Euphytica》2011,179(3):485-497
Stem strength is one of the major influencing factors of lodging in soybean [Glycine max (L.) Merr.] as well as other crops. To identify quantitative trait loci (QTL) associated with stem strength and related traits
in soybean, a recombinant inbred line (RIL) population consisting of 165 lines derived from Zhongdou No. 29 × Zhongdou No.
32 was used in 3 years. Significant positive correlations were found among the four traits (stem strength, stem diameter,
number of nodes, root dry weight). A linkage map spanning 1,240.7 cM was constructed using 245 SSR (simple sequence repeat)
markers and a phenotypic marker (leaflet shape). By composite interval mapping and two-round strategy of QTL meta-analysis,
32 consensus QTL and 19 unique QTL were identified, respectively. Of eight pleiotropic unique QTL, two QTL (uq.A2-2 and uq.A2-3) located at the intervals of 23.2–26.8 and 38.5–42.4 cM on linkage group A2, respectively, were associated with all the four
traits. Additive × environment (ae) interaction effects, epistasis (aa) and epistasis × environment (aae) interaction effects
of QTL were detected as well. The results provide useful information for further genetic studies on stem strength of soybean. 相似文献
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为评估我国生物安全隔离区建设成效,选择福建圣农肉鸡无高致病性禽流感生物安全隔离区为研究对象,按照全国农牧渔业丰收奖经济效益计算办法,对项目建设期间(2012—2016年)的经济效益进行评估。结果显示:此项目单位规模新增纯收益0.258 7元,总经济效益为1 923.252 08万元,年经济效益为384.650 4万元,推广投资年均纯收益率为0.815 9。综合评估认为,福建圣农生物安全隔离区建设获得明显经济效益,生物安全隔离区划是促进我国肉禽养殖行业健康发展的一种重要模式。 相似文献
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