Institutional Publications

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Author: search.filters.author.Loake, Gary J.Subject: search.filters.subject.Nitric oxide

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    Expanding roles for S-nitrosylation in the regulation of plant immunity
    (Elsevier B.V., 2023) Borrowman, Sam; Gupta, Kapuganti Jagadis; Loake, Gary J.
    Following pathogen recognition, plant cells produce a nitrosative burst resulting in a striking increase in nitric oxide (NO), altering the redox state of the cell, which subsequently helps orchestrate a plethora of immune responses. NO is a potent redox cue, efficiently relayed between proteins through its co-valent attachment to highly specific, powerfully reactive protein cysteine (Cys) thiols, resulting in formation of protein S-nitrosothiols (SNOs). This process, known as S-nitrosylation, can modulate the function of target proteins, enabling responsiveness to cellular redox changes. Key targets of S-nitrosylation control the production of reactive oxygen species (ROS), the transcription of immune-response genes, the triggering of the hypersensitive response (HR) and the establishment of systemic acquired resistance (SAR). Here, we bring together recent advances in the control of plant immunity by S-nitrosylation, furthering our appreciation of how changes in cellular redox status reprogramme plant immune function.
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    The PHYTOGLOBIN-NO cycle regulates plant mycorrhizal symbiosis
    (Elsevier B.V., 2019) Kumari, Aprajita; Pathak, Pradeep Kumar; Loake, Gary J.; Gupta, Kapuganti Jagadis
    The production of the redox-active signaling molecule, NO, has long been associated with interactions between microbes and their host plants. Emerging evidence now suggests that specific NO signatures and cognate patterns of PHYTOGLOBIN1 (PHYTOGB1) expression, a key regulator of cellular NO homeostasis, may help determine either symbiosis or pathogenicity.