FIGURE 2.
Interaction of biologically active gases, nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S) with methane (CH4) in plants. Relevant literature references (Song et al., 2008; Wang et al., 2013; Cui et al., 2015; Han et al., 2017; Khan et al., 2017; Qi et al., 2017; Samma et al., 2017; Kou et al., 2018; Zhang et al., 2018) are provided in the text. Similar mechanisms may operate in mammals.