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https://elib.bsu.by/handle/123456789/196601| Title: | Действие триазиновых гербицидов на активность АТФ-азы и пирофосфатазы тонопласта |
| Authors: | Епимашко, С. Н. Юрин, В. М. |
| Keywords: | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Биология |
| Issue Date: | 2000 |
| Publisher: | Минск : Універсітэцкае |
| Citation: | Вестник Белорусского государственного университета. Сер. 2, Химия. Биология. География. – 2000. - № 1. – С. 37-40. |
| Abstract: | The effects of 3 triazine herbicides (atrazine, prometryne, simazine) on ATP- and PPi- dependent proton gradient development and ATP-hydrolysing activity by tonoplast-enriched vesicles isolated from leaves of Nicotiana tabacum plants were investigated. All triazine disrupted proton gradient formation across vesicles in both cases (ATP- and PPi-dependent) at the concentration higher than 0,1 mM. Haft-maximal inhibition concentration (I50) for these compounds were evaluated. However, triazine did not affect significantly the ATP-hydrolysing activity by to noplast vesicles at any concentration tested (0,02 - 1 mM). W e suggest that triazine herbicides inhibited tonoplast proton pumps indirectly by increasing passive proton leakage across membrane vesicles. |
| URI: | http://elib.bsu.by/handle/123456789/196601 |
| ISSN: | 0372-5340 |
| Licence: | info:eu-repo/semantics/openAccess |
| Appears in Collections: | 2000, №1 (февраль) |
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