| Full text | |
| Author(s): |
Silveira, Neidiquele M.
[1]
;
Seabra, Amedea B.
[2]
;
Marcos, Fernanda C. C.
[3]
;
Pelegrino, Milena T.
[2]
;
Machado, Eduardo C.
[1]
;
Ribeiro, Rafael V.
[3]
Total Authors: 6
|
| Affiliation: | [1] Agron Inst IAC, Ctr R&D Ecophysiol & Biophys, Lab Plant Physiol Coaracy M Franco, Campinas, SP - Brazil
[2] Fed Univ ABC, Ctr Nat & Human Sci, Santo Andre, SP - Brazil
[3] Univ Estadual Campinas, UNICAMP, Inst Biol, Lab Crop Physiol, Dept Plant Biol, Campinas, SP - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | NITRIC OXIDE-BIOLOGY AND CHEMISTRY; v. 84, p. 38-44, MAR 1 2019. |
| Web of Science Citations: | 3 |
| Abstract | |
The entrapment of NO donors in nanomaterials has emerged as a strategy to protect these molecules from rapid degradation, allowing a more controlled release of NO and prolonging its effect. On the other hand, we have found beneficial effects of S-nitrosoglutathione (GSNO) - a NO donor - supplying to sugarcane plants under water deficit. Here, we hypothesized that GSNO encapsulated into nanoparticles would be more effective in attenuating the effects of water deficit on sugarcane plants as compared to the supplying of GSNO in its free form. The synthesis and characterization of chitosan nanoparticles containing GSNO were also reported. Sugarcane plants were grown in nutrient solution, and then subjected to the following treatments: control (well-hydrated); water deficit (WD); WD + GSNO sprayed in its free form (WDG) or encapsulated (WDG-NP). In general, both GSNO forms attenuated the effects of water deficit on sugarcane plants. However, the encapsulation of this donor into chitosan nanoparticles caused higher photosynthetic rates under water deficit, as compared to plants supplied with free GSNO. The root/shoot ratio was also increased when encapsulated GSNO was supplied, indicating that delayed release of NO improves drought tolerance of sugarcane plants. Our results provide experimental evidence that nanotechnology can be used for enhancing NO-induced benefits for plants under stressful conditions, alleviating the negative impact of water deficit on plant metabolism and increasing biomass allocation to root system. (AU) | |
| FAPESP's process: | 16/10347-6 - S-nitrosothiol containing nanoparticles: Synthesis, characterization, cytotoxicity and applications |
| Grantee: | Amedea Barozzi Seabra |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 18/08194-2 - Essential oil amended with metal nanoparticles functionalized with nitric oxide as a strategy to control plant pathogens in the agriculture |
| Grantee: | Amedea Barozzi Seabra |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 12/19167-0 - INVOLVEMENT OF NITRIC OXIDE ON PHYSIOLOGICAL RESPONSES IN PLANTS OF SUGARCANE UNDER WATER DEFICIT |
| Grantee: | Neidiquele Maria Silveira |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 15/00393-8 - Nitric oxide releasing polymeric nanoparticles for topical applications |
| Grantee: | Milena Trevisan Pelegrino |
| Support Opportunities: | Scholarships in Brazil - Master |