Role of melatonin in leaf gas exchange by redox regulation, K+ Homeostasis and gene expression in Canola under salinity stress (Record no. 61957)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02827nam a2200301Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20251009160708.0 |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | B-21868 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 251009s9999 xx 000 0 und d |
| 245 10 - TITLE STATEMENT | |
| Title | Role of melatonin in leaf gas exchange by redox regulation, K+ Homeostasis and gene expression in Canola under salinity stress |
| 490 0# - SERIES STATEMENT | |
| Series statement | J Soil Sci Plant Nutr (Journal of Soil Science and Plant Nutrition, 25(1), 1661-1678, 2025.2025 |
| 500 ## - GENERAL NOTE | |
| General note | Artículo |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | Leaf gas exchange is a key physiological trait that is highly sensitive to salinity stress. The study aimed to assess the impact of an ion signaling melatonin molecule on leaf gas exchange, K+ uptake ability and extrusion of Na+ from canola leaves. Melatonin (Mel; 1 mM) was exogenously applied as root drenching on two contrasting Brassica napus L. varieties (AARI and Faisal) under salinity stress (120 mM NaCl). Salinity stress significantly reduced plant dry matter and net photosynthesis (Pn) by lowering leaf gas exchange and increasing ROS production, and Na+ accumulation over control. However, melatonin improved leaf gas exchange, relative water contents and ultimately plant growth by regulating K+ homeostasis and antioxidant defense system in both varieties. At a mechanistic level, melatonin induced alleviation of salinity stress in canola was attributed to a set of physiological mechanisms: (i) higher activation of antioxidant defense system; (ii) better osmoregulation via higher accumulation of sugars and proline; (iii) increased expression of PM-SOS1 (Na+/H+ exchangers) leading to higher extrusion of Na+ from leaves; (iv) higher vacuolar Na+ sequestration via tonoplastic Na+/H+ antiporter; and (v) better K+ uptake ability through activation of HAK5 and HKT1 and deactivation of PM-GORK channels. Melatonin triggered first two mechanisms, which improved ROS scavenging and leaf gas exchange, while last two were important in K+ regulation in leaves. Melatonin induced salinity tolerance in canola varieties by regulating leaf gas exchange, activating ROS scavenging and maintaining Na+/K+ homeostasis via upregulation of HAK5, HKT1 and NHX genes, however, AARI outperformed than Faisal, indicating intraspecies variability in K+ regulation and redox homeostasis. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | MELATONIN |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | NET PHOTOSYNTHETIC RATE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | ROS SCAVENGING |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | KANTIPORTERS |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ali, M. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Farooq, M. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Shah, A. N. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Abbasi, G. H. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ahmad, S. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Parveen, A. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Nisar, F. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1kN0yjGtUVOF3_-v1mvTuq61OvjRJiAbY/view?usp=drive_link">https://drive.google.com/file/d/1kN0yjGtUVOF3_-v1mvTuq61OvjRJiAbY/view?usp=drive_link</a> |
| Public note | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Clasificación local |
| Koha item type | Documentos solicitados |
| Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 09.10.2025 | B-21868 | 09.10.2025 | 09.10.2025 | Documentos solicitados |