Ali Mohd, Kumar Deepak, Tikoria Raman, Sharma Roohi, Parkirti Parkirti, Vikram Vikram, Kaushal Kritika, Ohri Puja
Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
Department of Zoology, School of Bioengineering and Bioscience, Lovely Professional University, Jalandhar, Punjab, 144411, India.
Nitric Oxide. 2023 Nov 1;140-141:16-29. doi: 10.1016/j.niox.2023.09.001. Epub 2023 Sep 9.
In plants, hydrogen sulfide (HS) is mainly considered as a gaseous transmitter or signaling molecule that has long been recognized as an essential component of numerous plant cellular and physiological processes. Several subcellular compartments in plants use both enzymatic and non-enzymatic mechanisms to generate HS. Under normal and stress full conditions exogenous administration of HS supports a variety of plant developmental processes, including growth and germination, senescence, defense, maturation and antioxidant machinery in plants. Due to their gaseous nature, they are efficiently disseminated to various areas of the cell to balance antioxidant pools and supply sulphur to the cells. Numerous studies have also been reported regarding HS ability to reduce heavy metal toxicity when combined with other signaling molecules like nitric oxide (NO), abscisic acid (ABA), calcium ion (Ca), hydrogen peroxide (HO), salicylic acid (SA), ethylene (ETH), jasmonic acid (JA), proline (Pro), and melatonin. The current study focuses on multiple pathways for JA and HS production as well as their signaling functions in plant cells under varied circumstances, more specifically under heavy metal, which also covers role of HS and Jasmonic acid during heavy metal stress and interaction of hydrogen sulfide with Jasmonic acid.
在植物中，硫化氢（HS）主要被视为一种气体递质或信号分子，长期以来一直被认为是众多植物细胞和生理过程的重要组成部分。植物中的几个亚细胞区室利用酶促和非酶促机制来产生HS。在正常和胁迫条件下，外源施用HS可支持多种植物发育过程，包括植物的生长与萌发、衰老、防御、成熟和抗氧化机制。由于其气态性质，它们能有效地扩散到细胞的各个区域，以平衡抗氧化物质库并为细胞提供硫。关于HS与其他信号分子如一氧化氮（NO）、脱落酸（ABA）、钙离子（Ca）、过氧化氢（HO）、水杨酸（SA）、乙烯（ETH）、茉莉酸（JA）、脯氨酸（Pro）和褪黑素结合时降低重金属毒性的能力，也有大量研究报道。当前的研究聚焦于JA和HS产生的多种途径以及它们在不同情况下，更具体地说是在重金属胁迫下，在植物细胞中的信号功能，其中还涵盖了HS和茉莉酸在重金属胁迫中的作用以及硫化氢与茉莉酸的相互作用。
