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- pollen wall stratification 粉壁分层
- The structure of pollen wall provides many characteristics for systematic botany, among which the stratification, struture and ornamentation of exine is basel. 花粉壁的构造提供了若干在系统发育上有用的特征,其中外壁的层次、结构以及纹饰是基本的。
- Abstract: The structure of pollen wall provides many characteristics for systematic botany, among which the stratification, struture and ornamentation of exine is basel. 摘 要: 花粉壁的构造提供了若干在系统发育上有用的特征,其中外壁的层次、结构以及纹饰是基本的。
- The results showed that pollen wall of the Genus is smooth. 结果表明:堇菜属植物花粉外壁光滑,无纹饰;
- All two pollen grains possess a well-developed pollen wall (exine and intine). 此二种花粉粒皆有发育良好的花粉壁,花粉外壁和内壁并存。
- Product of ATPase reaction was mainly found in plastid, ERs, matrix of cytopla sm, and intine of pollen wall. 外层与内层之间有缝隙。ATP酶活性反应产物主要分布在细胞质基质、质体、内质网和花粉内壁中。
- Product of ATPase reaction was mainly found in plastid, ERs, matrix of cytoplasm, and intine of pollen wall. 外层与内层之间有缝隙。ATP酶活性反应产物主要分布在细胞质基质、质体、内质网和花粉内壁中。
- Liu N, Wang FX, Chen ZK., (1991).The fine structure and development of the pollen wall in Ophiopogen japonicus. 刘朝晖、刘宁、周云龙;(1999).;海金沙精细胞中生毛体发育及多层结构起源的超微结构研究。
- After the meiosis of MMC, abundant calcium precipitates were accumulated in the cytoplasm of early microspores, and then in pollen wall, especially in the part of germ-pores. 在小孢子发育早期,花药药隔部位的绒毡层细胞质中钙颗粒也明显增加并特异性地分布在其内切向壁上。
- The pollen wall ultrastructures of 15 species,representing 11 genera in the Subtribe Tussilagininae and related taxa of Trib. 研究了国产菊科千里光族款冬亚族及其相关类群11属15种植物的花粉超薄结构。
- Studies were made on rupturing mixed pollen wall by fermentation of Aspergillus oryzae,Saccharomyces cerevisiae,Plerotus ostreatus and Lentinus edodes. 采用米曲霉、酵母、平菇、香菇4种微生物对混合花粉进行生物发酵破壁研究。
- The exine of pollen wall is of different electron density, the nexine dense and the sexine, comprising tectum, bacules, and foot layer, relatively thin. 花粉壁的外壁分为外层和内层,外层包括覆盖层、基粒棒和基足层等三层,内层只包含一层。
- The outer pollen wall ultrastructure of 4 excellent germplasms and their cutting offsprings showed that the tectum,columellac,foot layer and endexine had no notable variation. 花粉外壁超微结构所显示的覆盖层、柱状层、基层和外壁内层的形状或厚度,4份优质资源与其扦插后代均无明显变化。
- illegibility or absence of the wall stratification; 超声动态观察胃壁病变部位蠕动减弱或消失;
- Furthermore, the exine ornamentation of Farfugium is also different with that of Doronicum although both genera commonly share the "Helianthoid" type pollen wall ultrastructure in the Senecioneae. 它与花粉超薄结构同为“向日葵型”的多榔菊属的花粉外壁性状也不相同。
- On the inner ta-ngential walls and radial walls are studded Ubisch bodies stripe-like"bri-dge" appear between Ubisch body and pollen wall. 绒毡层内切向壁和径向壁上分布有乌氏体,乌氏体和花粉壁之间存在带状的“桥”。
- The processing for fermented corn pollen beverage was introduced and the optimum processing for breaking pollen wall was investigated. Fermentation was used to improve the product's color and flavor. 介绍了发酵玉米花粉饮料的制作工艺,探讨了最佳破壁提取条件,并尝试利用微生物发酵对破壁花粉液的风味、色泽进行了改善。
- The result showed the percentage of rupturing pollen wall with Aspergillus oryzae,Saccharomyces cerevisiae,Leurotus ostreatus and Lentinus edodes are 89.3%, 61.5%, 90.9% and 58.8%. 结果表明;其破壁率分别为:米曲霉89.;3%25、酵母61
- The shutters thumped the wall in the wind. 在风中百叶窗砰砰地碰在墙上。
- The nuclei in these polynucleate cells soon disorganized after the formation of pollen walls;their inclusion exuded out;The pollen grains adhered together and ended in abortion. 这些多核细胞形成花粉壁后发生核解体,内含物渗出,花粉粘连,败育。