Abstract:
:A powerful technique is described to localize the activities of a range of enzymes in a wide variety of plant tissues. The method is based on the coupling of the enzymatic reaction to the reduction of NAD and subsequent reduction and precipitation of nitroblue tetrazolium. Enzymes that did not reduce NAD could be visualized by coupling their activities to glucose-6-phosphate dehydrogenase activity via one or more intermediary 'coupling' enzymes. The method is shown to be applicable for the detection of the activities of hexokinase, fructokinase, sucrose synthase, uridine 5'-diphospho-glucose pyrophosphorylase, ADP-glucose pyrophosphorylase, phosphoglucomutase, and phosphoglucose isomerase. It could be used for all tissues tested, including green leaves, stems, roots, fruits, and seeds. The method is specific, very sensitive, and has a high spatial resolution, giving information at the cellular and the subcellular level. The localization of sucrose synthase, invertase, and uridine 5'-diphospho-glucose pyrophosphorylase in transgenic potato plants, carrying a cytokinin biosynthesis gene, is studied and compared with wild-type plants.
journal_name
J Exp Botjournal_title
Journal of experimental botanyauthors
Sergeeva LI,Vreugdenhil Ddoi
10.1093/jexbot/53.367.361keywords:
subject
Has Abstractpub_date
2002-02-01 00:00:00pages
361-70issue
367eissn
0022-0957issn
1460-2431journal_volume
53pub_type
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journal_title:Journal of experimental botany
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journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
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journal_title:Journal of experimental botany
pub_type: 杂志文章
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journal_title:Journal of experimental botany
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journal_title:Journal of experimental botany
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journal_title:Journal of experimental botany
pub_type: 杂志文章
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journal_title:Journal of experimental botany
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更新日期:2009-01-01 00:00:00
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journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
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更新日期:2015-02-01 00:00:00
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journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erw045
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journal_title:Journal of experimental botany
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journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:
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journal_title:Journal of experimental botany
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journal_title:Journal of experimental botany
pub_type: 杂志文章
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更新日期:2009-01-01 00:00:00
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journal_title:Journal of experimental botany
pub_type: 杂志文章
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更新日期:2017-02-01 00:00:00
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journal_title:Journal of experimental botany
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更新日期:2014-01-01 00:00:00
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journal_title:Journal of experimental botany
pub_type: 杂志文章
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更新日期:2002-07-01 00:00:00
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journal_title:Journal of experimental botany
pub_type: 杂志文章
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更新日期:2010-03-01 00:00:00
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pub_type: 杂志文章
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