Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | frontiers |
|---|---|
| Author | Sun, Yu-Ying Wang, Jia-Qi Xiang, Ru-Hua Li, Zhong-Guang |
| Abstract | Nitric oxide (NO) and hydrogen sulfide (H2S) are novel signaling molecules in plants, which participate in plant growth, development, and response to stress. Here, treatment of maize seedlings with sodium nitroprusside (SNP, NO donor) up-regulated LCD1 expression and L-cysteine desulfhydrase and D-cysteine desulfhydrase activities, which in turn increased endogenous H2S level compared with the control. SNP-triggered effects were enhanced by sodium hydrosulfide (NaHS, H2S donor), but weakened by NO scavenger 2-(4-carboxyphenyl)-4,4,5,5- tetramethylimidazoline-1-oxyl-3-oxide and H2S scavenger hypotaurine (HT) alone, while NaHS had no significant effect on nitrate reductase (NR, NO-producing enzyme) activity and gene expression. These data indicate that NO could trigger H2S signaling in maize seedlings. To further investigate effect of NO and H2S crosstalk on thermotolerance in maize seedlings, the thermotolerrance parameters and reactive oxygen species-scavenging system were estimated. The results show that SNP increased survival rate and tissue viability, decreased malondialdehyde accumulation and electrolyte leakage in maize seedlings under heat stress (HS), implying NO could improve the thermotolerance of maize seedlings. NO-improved thermotolerance was impaired by H2S inhibitor DL-propargylglycine (PAG) and scavenger HT alone. Similarly, SNP up-regulated DHAR and GR1 expression, ascorbate peroxidase, glutathione reductase, and catalase activities, as well as ascorbic acid, glutathione, flavonoids, carotenoids, and total phenols levels, reduced hydrogen peroxide and superoxide radical accumulation in maize seedlings under HS compared with the control. These physiological effects were weakened by PAG and HT alone. These data hint that NO-H2S crosstalk could evoke the thermotolerance in maize seedlings, and reactive oxygen species-scavenging system played a key role in the NO-H2S crosstalk-evoked thermotolerance. |
| ISSN | 1664462X |
| DOI | 10.3389/fpls.2022.967968 |
| Volume Number | 13 |
| Journal | Frontiers in Plant Science |
| Language | English |
| Publisher Date | 2022-11-07 |
| Access Restriction | Open |
| Subject Keyword | Reactive Oxygen Species Nitric Oxide Hydrogen Sulfide Reactive oxygen species-scavenging system Maize seedlings |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|