Unraveling the role of nanoparticles in improving plant resilience under environmental stress condition

Plant and Soil, Год журнала: 2024, Номер 503(1-2), С. 313 - 330

Опубликована: Март 12, 2024

Abstract Background As the world grapples with increasing agricultural demands and unpredictable environmental stressors, there is a pressing need to improve plant resilience. Therefore, understanding pioneering role of nanoparticles in alleviating stress crucial for developing stress-resilient varieties enhance food secure world. Nanoparticles have unique physical chemical properties, demonstrate their potential growth, nutrient utilization, tolerance. This review delves into mechanistic insights nanoparticle-plant interactions, highlighting how these tiny particles can mitigate diverse stressors such as drought, salinity, heavy metal toxicity. The action different types nanoparticles, including metal, carbon-based, biogenic are discussed context interaction physiology responses. Aims article also explores drawbacks implications nanoparticle use, emphasizing responsible sustainable applications. this study aimed offer exciting possibilities managing both biotic abiotic species, from improving water-use efficiency resilience via nanotechnology. Conclusions Future research directions suggested, focusing on nano-bioengineering precision agriculture create crops security. Through lens interdisciplinary research, paper underscores significance innovative tools realm agriculture, catalyzing paradigm shift towards farming systems.

Язык: Английский

---

Copper Oxide Nanoparticles Induced Growth and Physio-Biochemical Changes in Maize (Zea mays L.) in Saline Soil

Plants, Год журнала: 2024, Номер 13(8), С. 1080 - 1080

Опубликована: Апрель 11, 2024

Research on nanoparticles (NPs) is gaining great attention in modulating abiotic stress tolerance and improving crop productivity. Therefore, this investigation was carried out to evaluate the effects of copper oxide (CuO-NPs) growth biochemical characteristics two maize hybrids (YH-5427 FH-1046) grown under normal conditions or subjected saline stress. A pot-culture experiment Botanical Area “the University Lahore”, Lahore, Pakistan, a completely randomized design. At phenological stages, both were irrigated with same amount distilled water NaCl solution (EC = 5 dS m−1) not foliar treatment suspension CuO-NPs. The salt significantly reduced photosynthetic parameters (photosynthetic rate, transpiration, stomatal conductance), while sodium content shoot root increased. spray CuO-NPs improved attributes, along N, P, K, Ca, Mg roots shoots. However, hybrid YH-5427 responded better than other when sprayed Overall, findings current demonstrated that can help reduce adverse salinity plants by physio-biochemical attributes.

Язык: Английский

---

Deciphering the Mechanism of Melatonin-Induced Enhancement of Photosystem II Function in Moderate Drought-Stressed Oregano Plants

Plants, Год журнала: 2024, Номер 13(18), С. 2590 - 2590

Опубликована: Сен. 16, 2024

Melatonin (MT) is considered as an antistress molecule that plays a constructive role in the acclimation of plants to both biotic and abiotic stress conditions. In present study, we assessed impact 10 100 μM MT foliar spray, on chlorophyll content, photosystem II (PSII) function, under moderate drought stress, oregano (Origanum vulgare L.) plants. Our aim was elucidate molecular mechanism action photosynthetic electron transport process. Foliar spray with more effective mitigating negative PSII compared MT. significantly improved reduced efficiency oxygen-evolving complex (OEC), photoinhibition (Fv/Fm), which were caused by stress. Under MT, water sprayed (WA) leaves, increased non-photochemical quenching (NPQ) 31%, at growth irradiance (GI, 205 μmol photons m−2 s−1), 13% high (HI, 1000 s−1). However, lower NPQ increase HI demonstrated be decreasing singlet-excited oxygen (1O2) production (−38%), drought-stressed than corresponding decrease 1O2 GI (−20%), respective WA-sprayed leaves drought. The resulted significant quantum yield photochemistry (ΦPSII), rate (ETR), plants, but only (+27%). results suggest enhancement functionality, initiated mechanism, decreased fraction open reaction centers (qp), resulting ETR.

Язык: Английский

---

Melatonin Application Induced Physiological and Molecular Changes in Carnation (Dianthus caryophyllus L.) under Heat Stress

Horticulturae, Год журнала: 2024, Номер 10(2), С. 122 - 122

Опубликована: Янв. 26, 2024

Carnation is one of the most important ornamental plants worldwide; however, heat stress a problem, which affects carnation cultivation. The harmful effects include impaired vegetative development and reduced floral induction. In this study, to enhance growth under conditions stress, various concentrations melatonin were added in vitro culture media. mechanism by damage was then studied taking measurements morphological parameters, levels reactive oxygen species (ROS), antioxidant enzymes, malondialdehyde (MDA), as well differential gene expression, during culture. These data revealed that untreated more harmed than treated with melatonin. Melatonin at 5 10 mM increased chlorophyll content, fresh weight, plant height greater extent other concentrations. may, thus, be used alleviate carnations caused stress. application also found reduce oxidative defense mechanisms. addition, expression heat-related genes upregulated; melatonin-treated plants, an upregulation recorded GAPDH, DcPOD1, DcPOD2, DcPOD3, Gols1, MBF1c, HSF30, HSP101, HSP70, sHSP (MT) genes. short, we treatment tolerance plants. presented here may serve reference for those seeking

Язык: Английский

---

Elucidating the modulatory effect of melatonin on enzyme activity and oxidative stress in wheat: a global meta‐analysis

Physiologia Plantarum, Год журнала: 2024, Номер 176(2)

Опубликована: Март 1, 2024

Abstract In our comprehensive meta‐analysis, we initially collected 177 publications focusing on the impact of melatonin wheat. After meticulous screening, 40 published studies were selected, encompassing 558 observations for antioxidant enzymes, 312 reactive oxygen species (ROS), and 92 soluble biomolecules (soluble sugar protein). This analysis revealed significant heterogeneity across (I 2 > 99% ROS, biomolecules) notable publication bias, indicating complexity variability in research field. Melatonin application generally increased enzyme activities [superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate (APX)] wheat, particularly under stress conditions, such as high temperature heavy‐metal exposure. Compared to control, SOD, POD, CAT, APX by 29.5, 16.96, 35.98, 171.64%, respectively. Moreover, oxidative markers like hydrogen peroxide (H O ), superoxide anion (O malondialdehyde (MDA) decreased with 23.73, 13.64, 21.91%, respectively, suggesting a reduction stress. The also highlighted melatonin's role improving carbohydrate metabolism defenses. showed an overall increase 12.77% content, 22.76% glutathione (GPX) activity compared control. However, effects varied different wheat varieties, environmental methods. Our study uncovered complex relationships between H levels, nuanced regulatory responses. meta‐analysis demonstrates increasing resilience abiotic stressors, potentially through its defense systems response.

Язык: Английский

---

An insight into heat stress response and adaptive mechanism in cotton

Journal of Plant Physiology, Год журнала: 2024, Номер 302, С. 154324 - 154324

Опубликована: Авг. 6, 2024

Язык: Английский

---

Mechanistic Approach on Melatonin-Induced Hormesis of Photosystem II Function in the Medicinal Plant Mentha spicata

Plants, Год журнала: 2023, Номер 12(23), С. 4025 - 4025

Опубликована: Ноя. 29, 2023

Melatonin (MT) is considered a new plant hormone having universal distribution from prokaryotic bacteria to higher plants. It has been characterized as an antistress molecule playing positive role in the acclimation of plants stress conditions, but its impact on under non-stressed conditions not well understood. In current research, we evaluated MT application (10 and 100 μM) photosystem II (PSII) function, reactive oxygen species (ROS) generation, chlorophyll content mint (Mentha spicata L.) order elucidate molecular mechanism action photosynthetic electron transport process that still unclear. Seventy-two hours after foliar spray with μM MT, improved imported amount light energy capture, which caused 6% increase quantum yield PSII photochemistry (ΦPSII) rate (ETR). Nevertheless, reduced efficiency oxygen-evolving complex (OEC), causing donor-side photoinhibition, simultaneous slight ROS. Even so, decreased excess excitation at implying superior efficiency. The pressure PSII, spray, suggests induced stomatal closure through ROS production. response ΦPSII corresponds J-shaped hormetic curve, enhancement by MT. suggested stimulation functionality was triggered non-photochemical quenching (NPQ) stimulated production, enhanced function. concluded molecules can be used both biostimulants for enhancing crop yields.

Язык: Английский

---

Exogenous Melatonin Affects the Morphometric Characteristics and Glucosinolates during the Initial Growth Stages of Broccoli

Agronomy, Год журнала: 2024, Номер 14(2), С. 286 - 286

Опубликована: Янв. 27, 2024

Nowadays, there is a global surge in interest surrounding novel foods, particularly sprouts, microgreens, and baby leaves, attributed to their rich content of bioactive compounds, such as phenolic derivatives, glucosinolates, vitamins. This study delves into the impact exogenously applied melatonin on foods derived from Brassica oleracea L. Two distinct cultivars broccoli (Brassica var. italica Plenck), namely Sicilian sprouting (Broccolo nero) commercial variety (Cavolo Broccolo Ramoso Calabrese), were compared across leaves stages, adhering organic farming practices. Various doses (0, 50, 100 µM) administered at each harvesting stage. Plantlets collected different growth stages assessed for key morphometric traits, including weight, hypocotyl length, cotyledon dimensions during sprouts For number true recorded, while stem length was additionally measured. The analysis glucosinolates carried out using high-performance liquid chromatograph with diode array detector (HPLC-DAD). results revealed significant variations among experimental factors considered. Melatonin application significantly influenced parameters exhibiting notable width, leaf width. GLSs profile exhibited between genotypes studied. Particularly noteworthy tendency be higher stage stage, ranging 24.07 4.61 µmol g−1 d.w. respectively.

Язык: Английский

---

Hormetic Response of Photosystem II Function Induced by Nontoxic Calcium Hydroxide Nanoparticles

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(15), С. 8350 - 8350

Опубликована: Июль 30, 2024

In recent years, inorganic nanoparticles, including calcium hydroxide nanoparticles [Ca Ca(OH)

Язык: Английский

---

Identification, characterization, and expression of Oryza sativa tryptophan decarboxylase genes associated with fluroxypyr‐meptyl metabolism

The Plant Genome, Год журнала: 2025, Номер 18(1)

Опубликована: Янв. 5, 2025

Abstract Tryptophan decarboxylase (TDC) belongs to a family of aromatic amino acid decarboxylases and catalyzes the conversion tryptophan tryptamine. It is enzyme involved in first step melatonin (MT) biosynthesis mediates several key functions abiotic stress tolerance. In Oryza sativa under pesticide‐induced stress, TDC function unclear. Three differentially expressed genes (DEGs) six TDC‐coding were found be fluroxypyr‐meptyl (FLUME)‐treated rice transcriptome datasets, which allowed researchers explore properties roles stress. By applying sequence alignment phylogenetic analysis, two subfamilies gene family—DUF674 AAT_I—were rice, Glycine max , Zea mays Hordeum vulgare Solanum lycopersicum . According chromosomal location studies, segmental duplication aided expansion OsTDC family, three DEGs irregularly distributed on its 12 chromosomes. addition, nine displayed collinear relationship with those soybean, maize, barley, tomato. Rice can encode variety biotic responses because their diverse architectures, cis‐elements, motif compositions, conserved domains. Reverse transcription‐quantitative polymerase chain reaction (RT‐qPCR) analysis confirmed that proportion ( Os08g0140300 Os08g0140500 Os10g0380800 ) preferably 0.08 mg L −1 FLUME 5.2‐, 3.2‐, 3.9‐fold increase roots 2.1‐, 2.4‐, 2.6‐fold shoots, respectively. MT treatment further increased expression these genes, 2.1‐fold, 3.1‐fold, fivefold 1.5‐, 1.1‐, 1.1‐fold shoots than treated only, When seedling subjected activity was by 2.7 1.6 times higher control, application also promoted tissues; twofold 1.4‐fold higher, respectively, alone. These findings indicate respond effectively could enhance comprise set candidate regulate pesticide metabolism degradation MT.

Язык: Английский

---