By Lorenzo Lamattina, Carlos García-Mata
This ebook describes the 3 gasotransmitters nitric oxide (NO), hydrogen sulphide (H2S) and carbon monoxide (CO) and their functionality as intracellular signalling molecules in crops.
Common houses are shared through NO, H2S and CO: they're invaluable at low concentrations yet unsafe in larger quantities; they're small molecules of fuel; they could freely move mobile membranes; their results don't depend upon receptors; they're generated enzymatically and their construction is regulated; their capabilities will be mimicked via exogenous software; and their mobile results could or is probably not mediated by means of moment messengers, yet have particular mobile and molecular targets.
In vegetation, many facets of the biology of gasotransmitters stay thoroughly unknown and generate exciting questions, with the intention to be mentioned during this book.
Read or Download Gasotransmitters in Plants: The Rise of a New Paradigm in Cell Signaling PDF
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Extra resources for Gasotransmitters in Plants: The Rise of a New Paradigm in Cell Signaling
Sample text
2014b), probably by inducing ROS burst in pathogens, suggesting that H2S can be developed as an effective fungicide. It has been proposed that the exogenous H2S application could increase endogenous H2S level (Zhang et al. 2011a; Hu et al. 2012, 2013; Tang et al. 2014) by promoting the DCD and LCD activities (Hu et al. 2013). New directions emanated from research on H2S would allow more orderly designed formulations for the marketing of high quality fruits endowed with longer storage life. The problem associated with H2S is its toxicity; therefore, delivery of H2S to biological items is a great challenge.
2014). Besides, Wang et al. (2012) and Chen et al. (2015a) discovered that H2S improves salt tolerance by increasing endogenous NO production, and the function is reversed after addition of NO scavenger cPTIO. 4 Temperature Stress Recently, extreme temperature has become a noticeable abiotic stress factor limiting crop productivity. High temperature leads to lipid peroxidation, membrane injury, protein degradation, and enzyme inactivation and eventually results in severe cellular injury and even cell death (Suzuki and Mittler 2006).
2008; Shan et al. 2012). Wang et al. (2010) also found that H2S plays a protective role in cucumber root elongation under boron (B) stress via counteracting B-induced upregulation of cell wall-associated proteins pectin methylesterase (PME) and expansins. Interestingly, H2S also regulates iron (Fe) deficiency responses in plant. Under iron-deficient condition, H2S prevents leaf interveinal chlorosis, promotes mesophyll cell development, and enhances phytosiderophore accumulation and secretion in maize seedlings.
