| 桔青霉变异株分类地位的研究 |
| A TAXONOMIC INVESTIGATION OF Penicillium CITRINUM VARIANTS BY BIOCHEMICAL AND ELECTR- OPHORETIC TECHNIQUES |
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| 中文关键词:桔青霉变异株 电泳 蛋白质 酯酶 苹果酸脱氢酶 淀粉酶 核糖核酸酶 |
| 英文关键词:Penicillium citrinum variants electrophoresis protein esterase malate dehydrogenase amylase ribonuclease |
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| 中文摘要: |
| 桔青霉(Penicillium cirlrinunr Thom)是青霉属中的一个明确的种,但变异范围很大.自然界存在其白色株和不能利用硝酸盐为氮源的所谓营养缺陷型。在分类上对上述变异有两种不同处理方式:一是作为新种或变种,二是认为是突变型而不承认其分类地位。选择何种处理在一定程度上取决于研究者的主观看法。作者结合某些生理生化特性和可溶性蛋白电泳图形以及同工酶酶谱(酯酶,苹果酸脱氢酶,淀粉酶,核糖核酸酶)对桔青霉及其变异株以及邻近种作了比较研究以便提供依据,确认哪一种处理更为合理。研究结果表明桔青霉与其变异株的各种主要特征都极为相似,而与其邻近种则有明显不同。因此作者认为对这类菌株不应作为新种或变种而应作为种内变异株处理,不承认其分类地位.这一结论支持了Raper和Thom以及Pitt的观点。 |
| 英文摘要: |
| Two variants of Penicillium citrinum Thom were isolated from nature. One was white(complete lack of wnidial wlour) and the other nutritionally deficient (unable to utilize nitrate nitrogen).Physiological and biochemical characters and electrophoresis of protein patterns and zymograms wereused as an aid to the determination of the taxonomic status of these two variants. The results show thatboth the two variants are extremely similar to the normal strain, and so should not be treated as separatetaxa. It is appropriate to consider them as natural variants with no special taxonomic status. |
| 齐祖同,孙曾美. 桔青霉变异株分类地位的研究[J]. 菌物学报, 1989, 8(Z1): 151-158 |
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