Oxidative Stress and Antioxidant Defense in Plants Exposed to Ultraviolet Radiation

Pathak, Jainendra; Rajneesh, -; Ahmed, Haseen; Singh, Deepak; Singh, Prashant; Kumar, Deepak; Kannaujiya, Vinod K.; Singh, Shailendra P.; Sinha, Rajeshwar P.

doi:10.1002/9781119468677.ch16

Cited by 6 publications

(1 citation statement)

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“…Similarly, heavy metals like cadmium can have devastating impacts on plants, triggering oxidative stress and significantly increasing ROS levels at the cellular level. Currently, our understanding of small peptides that regulate plant responses to heavy metal-induced stress is limited and further research is needed to explore this aspect (Pathak et al, 2019;Singh et al, 2016). Therefore, miPEP408 emerges as a crucial player in arsenic detoxification by modulating the sulfur reduction pathway.…”

Section: Heavy Metal Toxicitymentioning

confidence: 99%

Small but mighty: Peptides regulating abiotic stress responses in plants

Datta,

Kumar,

Sinha

et al. 2024

Plant Cell & Environment

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Throughout evolution, plants have developed strategies to confront and alleviate the detrimental impacts of abiotic stresses on their growth and development. The combat strategies involve intricate molecular networks and a spectrum of early and late stress‐responsive pathways. Plant peptides, consisting of fewer than 100 amino acid residues, are at the forefront of these responses, serving as pivotal signalling molecules. These peptides, with roles similar to phytohormones, intricately regulate plant growth, development and facilitate essential cell‐to‐cell communications. Numerous studies underscore the significant role of these small peptides in coordinating diverse signalling events triggered by environmental challenges. Originating from the proteolytic processing of larger protein precursors or directly translated from small open reading frames, including microRNA (miRNA) encoded peptides from primary miRNA, these peptides exert their biological functions through binding with membrane‐embedded receptor‐like kinases. This interaction initiates downstream cellular signalling cascades, often involving major phytohormones or reactive oxygen species‐mediated mechanisms. Despite these advances, the precise modes of action for numerous other small peptides remain to be fully elucidated. In this review, we delve into the dynamics of stress physiology, mainly focusing on the roles of major small signalling peptides, shedding light on their significance in the face of changing environmental conditions.

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Section: Heavy Metal Toxicitymentioning

confidence: 99%