Nitric oxide in physiological potential and biochemical mechanisms of pea seeds under water deficit

Sekita, Marcelo Coelho; Dias, Denise Cunha Fernandes dos Santos; Pinheiro, Daniel Teixeira; Silva, Aparecida Leonir da; Matos, Antônio César Batista; Silva, Laércio Junio da

doi:10.1590/2317-1545v44258744

Cited by 4 publications

(2 citation statements)

References 49 publications

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“…The results obtained in this work showed that water limitation caused by PEG led to a significant increase in H 2 O 2 content in I. walleriana shoots (Figure 7). As in the case of MDA, there are literature data describing the inhibitory effect of SNP on H 2 O 2 production in Malus hupehensis [73], Allium hirtifolium [74], and pea seeds [75]. The results of this work show that all SNP pre-treatments and MDA increased H 2 O 2 content in water deficit-stressed I. walleriana shoots.…”

Section: Discussionsupporting

confidence: 50%

Does Sodium Nitroprusside Alleviate Water Deficit Stress in Impatiens walleriana Shoots Grown In Vitro?

Đurić,

Trifunović-Momčilov,

Milošević

et al. 2023

Agriculture

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Impatiens walleriana is a decorative horticultural plant species. Commercial production requires that the plants be brought to market, often accompanied by reduced water content during transport. Drought significantly affects metabolic processes in plants. The effects of polyethylene glycol (PEG)-induced water deficit on shoots of I. walleriana were investigated using different mechanisms at the biochemical level. In addition, the potential water deficit-ameliorating effect of sodium nitroprusside (SNP) was tested. Shoots of I. walleriana were initially grown on MS media supplemented with SNP (50, 100 and 250 μM). After pre-treatments, shoots were further transferred to media supplemented with PEG8000 (3%) and/or SNP (50, 100 and 250 μM). Water deficit conditions increased proline, photosynthetic pigments, malondialdehyde (MDA), H2O2, total phenolic content and antioxidant activity. In addition, PEG-induced water deficit increased superoxide dismutase (SOD) and peroxidase (POX) activities but decreased catalase (CAT) activity. SNP did not significantly affect photosynthetic pigments and total phenolic content but increased proline accumulation, MDA and H2O2 content, especially when applied simultaneously with PEG. Moreover, none of the investigated SNP pretreatments significantly altered the activities of SOD, POX, and CAT in I. walleriana. The results indicate that exogenous application of SNP effectively alleviated water deficit stress in shoots of I. walleriana grown in vitro.

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Section: Discussionsupporting

confidence: 50%

Does Sodium Nitroprusside Alleviate Water Deficit Stress in Impatiens walleriana Shoots Grown In Vitro?

Đurić,

Trifunović-Momčilov,

Milošević

et al. 2023

Agriculture

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“…SNP stands out for being a donor of nitric oxide (NO), an inorganic radical synthesized from L-arginine (Kolbert et al, 2021), which acts in several cellular processes, stimulating germination and breaking dormancy of several species, such as mustard (Rather et al, 2020), tomato (Khan et al, 2021), and pea (Sekita et al, 2022). Similarly, Oliveira et al (2021) observed positive results in the germination of U. brizantha when primed with SNP, showing the positive role of this compound.…”

Section: Resultsmentioning

confidence: 99%

OSMOPRIMING AND ITS RELATIONSHIP WITH THE QUALITY OF Urochloa decumbens SEEDS UNDER WATER DEFICIT

Peris,

Pinheiro,

Limão

et al. 2024

Rev. Agric. Neotrop.

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The use of high-quality Urochloa decumbens seeds is an essential factor for the establishment of pastures, and osmopriming under stress conditions may improve seed performance. This study was conducted at the Universidade Federal de Viçosa in a completely randomized design and aimed to evaluate the effects of osmopriming and its relationship with physical and physiological attributes of U. decumbens seeds subjected to water deficit. Seeds from ten lots were primed in H2O (0 MPa) and PEG (−0.8 MPa), KNO3 (0.2%), and SNP (0.10 mmol L−1) solutions for 24 hours. Unprimed seeds were used as control. The seeds were evaluated in two trials after osmopriming. Trial I consisted of the X-ray test to evaluate physical attributes and germination and vigor tests. In Trial II, the seeds were placed to germinate under favorable (0 MPa) and water deficit conditions (−0.2 MPa) to evaluate physiological attributes. In general, osmopriming of U. decumbens seeds assisted in increasing physical attributes such as area, gray scale, perimeter, and tissue density. Osmopriming does not contribute to the best physiological performance of U. decumbens seeds under ideal germination conditions (0 MPa). However, osmopriming with SNP (0.10 mmol L−1) and PEG (−0.8 MPa) for 24 hours contributes to the better physiological performance of seeds under water deficit.

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Nitric oxide improves the germination of wheat seeds exposed to salinity via modulating sugar and proline metabolism

Çatav

2023

Biologia

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Nitric oxide in physiological potential and biochemical mechanisms of pea seeds under water deficit

Cited by 4 publications

References 49 publications

Does Sodium Nitroprusside Alleviate Water Deficit Stress in Impatiens walleriana Shoots Grown In Vitro?

Does Sodium Nitroprusside Alleviate Water Deficit Stress in Impatiens walleriana Shoots Grown In Vitro?

OSMOPRIMING AND ITS RELATIONSHIP WITH THE QUALITY OF Urochloa decumbens SEEDS UNDER WATER DEFICIT

Nitric oxide improves the germination of wheat seeds exposed to salinity via modulating sugar and proline metabolism

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