ROLE OF JASMONATE AND NITRIC OXIDE- INDUCED OF STOMATA CLOSURE IN ARABIDOPSIS THALIANA

Original title

РОЛЬ ЖАСМОНАТА И ОКСИДА АЗОТА (NO) В ИНДУЦИРОВАНИИ ЗАКРЫВАНИЯ УСТЬИЦ У РАСТЕНИЙ ARABIDOPSIS THALIANA

Authors

T.O. Yastreb¹, Yu. E. Kolupaev^1,2, A.I. Kokorev¹, A.P. Dmitriev³

Contact information

¹Dokuchaev Kharkiv National Agrarian University, Kharkiv, Ukraine, Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.

²Karazin Kharkiv National University, Kharkiv, Ukraine

³Institute of cell biology and genetic engineering of NAS of Ukraine, Kyiv, Ukraine, Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.

Pages

850-854

DOI

10.31255/978-5-94797-319-8-850-854

Abstract

The effects of methyl jasmonate (MJ), donors and antagonists of nitric oxide (NO) on stomata of Arabidopsis thaliana wild-type (Col-0) and mutants defective in jasmonate signaling (jin1 and coi1) were studied. Treatment of leaves epidermis with MJ solutions decreased the opened stomata number and the size of stomatal aperture only in wild-type plants. In MJ-treated jin1 and coi1 mutants these parameters were not practically change. The MJ effects on stomata closure in Col-0 plants were almost completely eliminated by preliminary epidermis treatment with nitric oxide scavenger PTIO and partly with inhibitors of animal NO-synthase (L-NAME) and nitrate reductase (sodium tungstate). Nitric oxide donors (sodium nitroprusside, L-arginine and sodium nitrite) reduced the number of opened stomata and the size of stomatal aperture. The data obtained suggest that NO is involved in realization of MJ physiological effects and various NO donors could induce the stomatal closure.