LIGHT-SCATTERING SPECTROPHOTOMETRY FROM ISOLATED CONTROL AND TRIAZOLE-TREATED CHLOROPLASTS

被引：3

作者：

DESHPANDE, S ^{[1
]}

HOFSTRA, G ^{[1
]}

FLETCHER, RA ^{[1
]}

ABRAHAMSON, EW ^{[1
]}

机构：

[1] UNIV GUELPH,DEPT ENVIRONM BIOL,GUELPH N1G 2W1,ONTARIO,CANADA

来源：

PHOTOCHEMISTRY AND PHOTOBIOLOGY | 1991年 / 54卷 / 03期

关键词：

D O I：

10.1111/j.1751-1097.1991.tb02046.x

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Light scattering relaxation spectrophotometry has proven to be a useful technique to monitor rapid cytophysical changes in chloroplast suspensions brought about by flash illumination. This paper compares the Mg-ATP dependent light scattering behaviour of chloroplasts isolated from control and triazole-treated wheat seedlings. Our results suggest that triazole-treatment enhances Mg-ATP dependent activity. This same enhancement in control chloroplasts can be brought about by introducing potassium ion in the presence of valinomycin. Therefore, the potassium ion might account for part of the stress resistance conferred by triazole treatment.

引用

页码：485 / 488

页数：4

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