Involvement of an O2− generating system in the induction of necrotic lesions on tobacco leaves infected with tobacco mosaic virus
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Different patterns of the photosynthetic apparatus recovery during early rehydration following drought stress in two types of intergeneric hybrid of triticale
2023, Environmental and Experimental BotanyStRac1 plays an important role in potato resistance against Phytophthora infestans via regulating H<inf>2</inf>O<inf>2</inf> production
2020, Journal of Plant PhysiologyCitation Excerpt :ROS consist of O2− (superoxide), H2O2 (hydrogen peroxide), HO· (hydroxyl radical), and 1O2 (singlet oxygen), which play vital roles in the establishment of the plant defense system (Adachi et al., 2015; Lamb and Dixon, 1997; Nagano et al., 2016). Production of ROS is considered as one of the earliest host defense responses during incompatible interactions between host and pathogen, and it could trigger a hypersensitive response (HR) (Doke and Ohashi, 1988; Greenberg and Vinatzer, 2003; Nagano et al., 2016; Nimchuk et al., 2003). ROS act as a secondary messenger to trigger plant resistance (Doke, 1983; Lin et al., 2012; Yoshioka et al., 2003; Zaninotto et al., 2006).
NADPH-H<inf>2</inf>O<inf>2</inf> shows different functions in regulating thermotolerance under different high temperatures in Solanum pimpinellifolium L
2020, Scientia HorticulturaeCitation Excerpt :To study the function of NADPH-H2O2 under different high temperatures, an NADPH oxidases inhibitor, diphenylene iodonium (DPI), was used in this study. The DPI, a widely used inhibitor, particularly for NADPH oxidases (Doke, 1983; Doke and Ohashi, 1988; Levine et al., 1994; Marino et al., 2012), is commonly used in plant science (Zhang et al., 2010; Gémes et al., 2016; Niu et al., 2017; Tian et al., 2017). Studies have shown that NADPH oxidases cross over the cell membrane, which is exposed to the apoplast (Noctor et al., 2018).
Rieske iron-sulfur protein of cytochrome-b<inf>6</inf>f is involved in plant recovery after drought stress
2018, Environmental and Experimental BotanyCitation Excerpt :Images of phenolics autofluorescence were taken with a fluorescent microscope ECLIPSE-E 600 (Nikon, Tokyo, Japan), equipped with a digital camera DXM 1200 F (Nikon, Tokyo, Japan) and filters EX 330–380/DM and 400 BA/420 (excitation filter 365 nm, dichroic mirror 400 nm, barrier filter 420 nm). Identification of superoxide radical in the leaves was performed as described by Doke and Ohashi (1988). Leaves were infiltrated in darkness for 15 min under pressure of 0.8 MPa with a solution containing 0.5% (w/v) nitroblue tetrazolium, 10 mM potassium phosphate buffer pH 7.0 and 0.005% (w/v) Triton X-100, and exposed to daylight for 15 min.
Superoxide (O<inf>2</inf><sup>.-</sup>) accumulation contributes to symptomless (type I) nonhost resistance of plants to biotrophic pathogens
2018, Plant Physiology and Biochemistry