Nitrate nutrition increases foliar levels of nitric oxide and waterlogging tolerance in soybean

da-Silva, Cristiane Jovelina; Shimoia, Eduardo Pereira; Posso, Douglas Antônio; Cardoso, A. A.; Batz, Timothy A.; Oliveira, A.; Amarante, Luciano do

doi:10.1007/s11738-021-03291-5

Cited by 13 publications

(7 citation statements)

References 56 publications

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“…These results indicate a higher adaptation of plants to subsequent eutrophic flooding, suggesting that the effects of nutrient inputs are beneficial for plant flood-tolerance (Joshi and Ginzberg, 2021). In this study, nitrate was added which reportedly plays a beneficial role in maintaining photosynthetic metabolism during short-term flooding (Nguyen et al, 2018a;Borella et al, 2019;Posso et al, 2020;Da-Silva et al, 2021). Upon flooding, because of the inhibited growth of belowground roots, plants of P. hydropiper may prioritize the allocation of resources obtained from eutrophic water to expand leaf lamina, and elongate leaves and adventitious roots.…”

Section: Traitmentioning

confidence: 76%

Nutrient Inputs Alleviate Negative Effects of Early and Subsequent Flooding on Growth of Polygonum hydropiper With the Aid of Adventitious Roots

et al. 2022

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Riparian plants are exposed to harmful stress induced by flooding, which is often accompanied by eutrophication in the Three Gorges Reservoir Region. The phenomenon is mainly caused by domestic sewage discharges, slow water flow, and agricultural fertilizer pollution. Simulating abiotic stress, such as flooding at the initial period, can act as a signal and induce positive responses of plants to subsequent severe stress. In addition, eutrophication supplies nutrients, provides a favorable environment in the early stages of plant, and facilitates good performance in later development. However, whether early flooding (with or without eutrophication) acts as positive cue or as stress on plants at different developmental stages remains unclear. To address this question, seeds of Polygonum hydropiper were collected from low and high elevations in the hydro-fluctuation belt of the Three Gorges Reservoir Region. Plants germinated from these seeds were subjected to shallower and shorter early flooding treatments with or without eutrophication. Subsequently, plants were subjected to deeper and longer flooding treatments with or without eutrophication. Early flooding and eutrophic flooding significantly induced generation of adventitious roots, suggesting morphological adaptation to flooding. Although early flooding and eutrophic flooding treatments did not increase plant biomass in subsequent treatments compared with control, stem length, length and width of the 1st fully expanded leaf, and biomass of plants in the early eutrophic treatment were higher than these of the early flooding treatment plants. These results suggest a negative lag-effect of early flooding, and also indicate that nutrient inputs can alleviate such effects. Similarly, subsequent eutrophic flooding also enhanced plant growth compared with subsequent flooding, showing significantly higher values of leaf traits and adventitious root number. Plants originated from low elevation had significantly higher functional leaf length and stem biomass compared with those from high elevation. These results suggest that nutrient inputs can alleviate negative effects of early and subsequent flooding on growth of P. hydropiper with the generation of adventitious roots.

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Section: Traitmentioning

confidence: 76%

Nutrient Inputs Alleviate Negative Effects of Early and Subsequent Flooding on Growth of Polygonum hydropiper With the Aid of Adventitious Roots

et al. 2022

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“…Antioxidants such as SOD, CAT, ascorbate peroxidase (APX, EC 1.11.1.11), and guaiacol peroxidase (POD, EC 1.11.1.7) remove O 2 − and H 2 O 2 [ 76 , 77 ]. Nitrate-fed plants show increased activities of antioxidants such as SOD and CAT, APX, and POD, thereby decreasing the level of H 2 O 2 and O 2 − [ 21 , 78 ], thus increasing tolerance to hypoxia and anoxia during waterlogging. Speedy recovery following re-oxygenation is equally important for plant growth, while NO 3 − has been shown to be beneficial during hypoxia and subsequent re-oxygenation by inducing antioxidant systems in plants [ 79 ].…”

Section: Role Of Nitrate and Nitrate Reductase (Nr) During Hypoxia An...mentioning

confidence: 99%

Nitrate–Nitrite–Nitric Oxide Pathway: A Mechanism of Hypoxia and Anoxia Tolerance in Plants

Timilsina

Dong

Hasanuzzaman

et al. 2022

IJMS

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Oxygen (O2) is the most crucial substrate for numerous biochemical processes in plants. Its deprivation is a critical factor that affects plant growth and may lead to death if it lasts for a long time. However, various biotic and abiotic factors cause O2 deprivation, leading to hypoxia and anoxia in plant tissues. To survive under hypoxia and/or anoxia, plants deploy various mechanisms such as fermentation paths, reactive oxygen species (ROS), reactive nitrogen species (RNS), antioxidant enzymes, aerenchyma, and adventitious root formation, while nitrate (NO3−), nitrite (NO2−), and nitric oxide (NO) have shown numerous beneficial roles through modulating these mechanisms. Therefore, in this review, we highlight the role of reductive pathways of NO formation which lessen the deleterious effects of oxidative damages and increase the adaptation capacity of plants during hypoxia and anoxia. Meanwhile, the overproduction of NO through reductive pathways during hypoxia and anoxia leads to cellular dysfunction and cell death. Thus, its scavenging or inhibition is equally important for plant survival. As plants are also reported to produce a potent greenhouse gas nitrous oxide (N2O) when supplied with NO3− and NO2−, resembling bacterial denitrification, its role during hypoxia and anoxia tolerance is discussed here. We point out that NO reduction to N2O along with the phytoglobin-NO cycle could be the most important NO-scavenging mechanism that would reduce nitro-oxidative stress, thus enhancing plants’ survival during O2-limited conditions. Hence, understanding the molecular mechanisms involved in reducing NO toxicity would not only provide insight into its role in plant physiology, but also address the uncertainties seen in the global N2O budget.

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“…During hypoxia, the levels of H 2 O 2 and MDA and the activity of antioxidant enzymes in plants supplemented with 1.8 mM Fe were higher compared with plants that received 0.09 mM Fe. Due to low oxygen concentrations and a highly reducing environment, oxidative stress is not very serious in plants facing hypoxia in controlled concentrations of Fe (Da-Silva and do Amarante 2020b; Garcia et al 2020;Da-Silva et al 2021). Thereby, it is expected that the antioxidant system will not be highly recruited under these conditions.…”

Section: High Fe Concentration Increases Oxidative Stress In Plants During Hypoxiamentioning

confidence: 99%

“…During hypoxia, the concentration of chlorophyll b and carotenoids decreased in plants supplemented with 0.09 mM Fe. The decrease in the concentration of photosynthetic pigments is common in soybean plants under hypoxia and possibly occurs due to foliar oxidative stress (Garcia et al 2020; Da-Silva and do Amarante 2020b; Da-Silva et al 2021). Supplementation of plants with 1.8 mM Fe intensified the decrease in the concentrations of chlorophyll b and carotenoids and also resulted in a decrease in chlorophyll a, both in normoxia and hypoxia conditions.…”

Section: High Fe Concentration Decreases the Photosynthetic Pigments Leaf Gas Exchange And The Accumulation Of Biomass During Hypoxiamentioning

confidence: 99%

“…However, growing soybean in soils prone to waterlogging, such as those suitable for rice planting, can be challenging. Increased rainfalls in these areas often lead to waterlogging and hypoxic conditions, under which soybean plants exhibit severe biochemical changes that delay their development and growth and reduces their productivity (Da-Silva and do Amarante 2020a, b; Garcia et al 2020;Zhou et al 2020;Da-Silva et al 2021). In this scenario, the increased availability of Fe to plants can result in Fe toxicity and accentuate the damage caused by hypoxia in soybean plants.…”

Section: Introductionmentioning

confidence: 99%

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Iron toxicity increases oxidative stress and impairs mineral accumulation and leaf gas exchange in soybean plants during hypoxia

Delias

da-Silva

Martins

et al. 2021

Environ Sci Pollut Res

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Iron toxicity is a major challenge faced by plants in hypoxic soils; however, the consequences of such combined stress for soybean (Glycine max) remain to be determined. Here we assessed the physiological responses of soybean plants exposed to hypoxia and a high concentration of iron. Soil-grown plants cultivated in a greenhouse until the vegetative stage were transferred to a hydroponic system containing nutrient solution and subjected to two oxygen conditions (normoxia (6.2 mg L -1 ) and hypoxia (0.33 mg L -1 )) and two iron concentrations (Fe-EDTA) (0.09 and 1.8 mM) for 72 h. During hypoxia, high concentrations of iron in the nutrient solution resulted in increased iron accumulation in roots and leaves. Under this condition, the concentrations of zinc, nitrogen, potassium, and calcium decreased in the roots, while the concentration of nitrogen and magnesium decreased in the leaves. Additionally, during hypoxia, the higher concentration of iron led to an increase in the activity of the antioxidant enzymes in roots and leaves, while decreased the levels of the photosynthetic pigments, leaf gas exchange, and plant growth. In conclusion, high iron concentration in the root medium results in a considerably more severe damage condition to soybean plants under hypoxia compared to plants grown under low iron availability.

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Nitrate nutrition increases foliar levels of nitric oxide and waterlogging tolerance in soybean

Cited by 13 publications

References 56 publications

Nutrient Inputs Alleviate Negative Effects of Early and Subsequent Flooding on Growth of Polygonum hydropiper With the Aid of Adventitious Roots

Nutrient Inputs Alleviate Negative Effects of Early and Subsequent Flooding on Growth of Polygonum hydropiper With the Aid of Adventitious Roots

Nitrate–Nitrite–Nitric Oxide Pathway: A Mechanism of Hypoxia and Anoxia Tolerance in Plants

Iron toxicity increases oxidative stress and impairs mineral accumulation and leaf gas exchange in soybean plants during hypoxia

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