A simple soilless cultural column was composed of columnar wall, columnar body and culture medium. The columnar wall was a chemical material woven with polypropyrene synthetic fibre. The columnar body consisted of a w...A simple soilless cultural column was composed of columnar wall, columnar body and culture medium. The columnar wall was a chemical material woven with polypropyrene synthetic fibre. The columnar body consisted of a water pipe of 200 cm long and 2 cm in the diameter and 12 circular spacers of 15 cm wide with central circular hole of 2 cm in diameter, which could allow the former water pipe go through to constitute the columnar body. There were many small holes in the spaces so water (nutrient solution) in the column could leak freely from the top of the column. The urea-formaldehyde plastic pieces were used as cultural medium after they were filled into the interval between two spacers on the column. 284 columns (200 cm in height, 15 cm in diameter) were contacted and paralleled to form a "woods" cultural unit (A= 160 m 2 ) for culturing tomato(Lycopersicum Mill) and lettuce(Capitata L.). Fig 4, Ref展开更多
经 Blue-Dexdran Sepharose 4B 亲和层析将硝酸述原酶(NR)纯度提高500倍,再检查硝酸还原酶活性稳定因子(NR-SF)与 NR 的关系。NR-SF 明显提高了 NR 活性及其亲和NO_3^-的能力,NR-SF 的作用位点在 NR 复合体的细胞色素 C 还原酶(CytcR)部...经 Blue-Dexdran Sepharose 4B 亲和层析将硝酸述原酶(NR)纯度提高500倍,再检查硝酸还原酶活性稳定因子(NR-SF)与 NR 的关系。NR-SF 明显提高了 NR 活性及其亲和NO_3^-的能力,NR-SF 的作用位点在 NR 复合体的细胞色素 C 还原酶(CytcR)部位,提高其活性1倍。但 NR-SF 又不象谷胱甘肽(GSH)能完全逆转对氯高汞苯甲酸(PCMB)抑制 CytcR活性的作用,所以 NR-SF 不完全是通过保护巯基而延缓 NR 的钝化作用。展开更多
文摘A simple soilless cultural column was composed of columnar wall, columnar body and culture medium. The columnar wall was a chemical material woven with polypropyrene synthetic fibre. The columnar body consisted of a water pipe of 200 cm long and 2 cm in the diameter and 12 circular spacers of 15 cm wide with central circular hole of 2 cm in diameter, which could allow the former water pipe go through to constitute the columnar body. There were many small holes in the spaces so water (nutrient solution) in the column could leak freely from the top of the column. The urea-formaldehyde plastic pieces were used as cultural medium after they were filled into the interval between two spacers on the column. 284 columns (200 cm in height, 15 cm in diameter) were contacted and paralleled to form a "woods" cultural unit (A= 160 m 2 ) for culturing tomato(Lycopersicum Mill) and lettuce(Capitata L.). Fig 4, Ref
文摘经 Blue-Dexdran Sepharose 4B 亲和层析将硝酸述原酶(NR)纯度提高500倍,再检查硝酸还原酶活性稳定因子(NR-SF)与 NR 的关系。NR-SF 明显提高了 NR 活性及其亲和NO_3^-的能力,NR-SF 的作用位点在 NR 复合体的细胞色素 C 还原酶(CytcR)部位,提高其活性1倍。但 NR-SF 又不象谷胱甘肽(GSH)能完全逆转对氯高汞苯甲酸(PCMB)抑制 CytcR活性的作用,所以 NR-SF 不完全是通过保护巯基而延缓 NR 的钝化作用。