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本文对巴西橡胶树不同树龄和树干不同高度的胶乳过氧化物酶同工酶和酯酶同工酶进行了研究,结果表明,橡胶树由幼态转入老态,主要取决于树龄,当橡胶树到达一定树龄后,则与高度密切相关。我们的研究认为: (1)4龄植株与6龄植株,无论是过氧化物酶同工酶或酯酶同工酶的酶谱都有明显差异。初步认为,4龄的谱带表现为幼态的生化特征,6龄的谱带表现为老态的生化特征。而5龄的谱带介于两者之间,是阶段发育的过渡年龄。 (2)6龄以上的实生树与幼态芽接树茎干离芽接位1米以下和2米以上的酶谱有明显差异,1.5米处的谱带与2米、3米、4米处的相似,而与1米处的明显不同。初步认为,1米以下的谱带是幼态,2米以上的谱带是老态,而1米至1.5米是由幼态转入老态的“过渡性区带”。
In this paper, rubber tree at different ages and trunk height at different levels of latex peroxidase isozyme and esterase isozyme were studied, the results show that the rubber tree from the young state into the old state, mainly depends on the age, when the rubber tree reaches a certain After the age, it is highly relevant. Our research suggests that: (1) There are significant differences in the enzyme patterns of peroxidase isoenzyme or esterase isozyme among the 4th instar plant and the 6th instar plant. It is preliminarily believed that the bands of the 4th instar are characterized by the biochemical characteristics of the juvenile and the bands of the 6th instar are characterized by the biochemical characteristics of the old. The 5th instability between the two bands, is the stage of transitional age. (2) There was a significant difference in the zymograms between the first-instar and the second-instar buds of more than 6th instar and less than 2 meters from the sprouting stems of the juvenile buds. The bands at 1.5 meters were similar to those at 2 meters, 3 meters and 4 meters Similar, but significantly different from 1 meter. It is preliminarily believed that the bands below 1 meter are young, the bands above 2 meters are old, and the transitional zones from the young to the old are between 1 meter and 1.5 meters.