Nitric oxide reduces oxidative damage induced by water stress in sunflower plants

Cechin, Inês; Sementili‐Cardoso, Guilherme; Fumis, Terezinha de Fátima; Corniani, N.

doi:10.1590/1678-4499.353

Cited by 45 publications

(14 citation statements)

References 45 publications

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“…The reduction of water availability possibly caused stress to the plants, affecting several physiological processes, such as stomatal opening, decreasing stomatal conductance, perspiration, and photosynthesis, consequently leading to the decline of biomass production (Cechin et al, 2015;Mota & Cano, 2016). Table 2.…”

Section: /7mentioning

confidence: 99%

Competition between cowpea and weeds for water: Effect on plants growth

Oliveira

Gama

Dombroski

et al. 2018

Agraria

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ABSTRACT:Water is the most important resource for agricultural production. The understanding of water competition mechanisms may lead to the development of new control strategies or coexistence with certain weed species, especially in situations where water is scarce. The objective of this work was to evaluate the competition between cowpea and weeds by water under the effect on plant growth. It was carried out experiment in greenhouse in the period from September to November 2015, in a randomized complete block design, with four replications. The treatments were arranged in factorial 5 x 2, with the first factor corresponding to the competition arrangements between the species (V. unguiculata + C. benghalensis; V. unguiculata + W. indica; V. unguiculata, C. benghalensis and W. indica in monoculture), and the second of water regimes (irrigated and water deficit). The water deficit reduces the growth of cowpea plants, C. benghalensis and W. indica. The competition between plants increases the effects of temporary water deficit in the soil. The W. indica leaf is the organ most affected by the water deficit. The weed specie W. indica has greater capacity competition for water with V. unguiculata than C. benghalensis. Key words: Commelina benghalensis; interference; Vigna unguiculata; Waltheria indica; water stressCompetição entre feijão-caupi e plantas daninhas por água: Efeito no crescimento das plantas RESUMO: A água é o recurso mais importante para a produção agrícola. O entendimento dos mecanismos de competição por água pode propiciar o desenvolvimento de novas estratégias de controle ou convivência com determinadas espécies de plantas daninhas, principalmente nas situações em que a água é escassa. Objetivou-se com este trabalho avaliar a competição entre feijão-caupi e plantas daninhas por água sob o efeito no crescimento das plantas. Foi realizado experimento em casa de vegetação no período de setembro a novembro de 2015, em delineamento em blocos casualizado, com quatro repetições. Os tratamentos foram arranjados em fatorial 5 x 2, com o primeiro fator correspondente aos arranjos de competição entre as espécies (feijão-caupi + trapoeraba; feijão-caupi + malva-branca; feijão-caupi, trapoeraba e malva-branca em monocultivo), e o segundo dos regimes hídricos (irrigado e déficit hídrico). O déficit hídrico reduz o crescimento das plantas de feijão-caupi, Commelina benghalensis e Waltheria indica. A competição entre plantas aumenta os efeitos do déficit hídrico temporário no solo. A folha de W. indica é o órgão mais afetado pelo déficit hídrico. A espécie daninha W. indica tem maior capacidade de competição por água com o feijão-caupi do que a C. benghalensis. Palavras-chave: Commelina benghalensis; interferência; Vigna unguiculata; Waltheria indica; estresse hídricoCompetition between cowpea and weeds for water: Effect on plants growth Rev. Bras.

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Section: /7mentioning

confidence: 99%

Competition between cowpea and weeds for water: Effect on plants growth

Oliveira

Gama

Dombroski

et al. 2018

Agraria

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“…High Na + concentration hinders the uptake of K + ions resulting in reducing agricultural productivity (Munns & Tester, 2008). Oxidative stress (Hasanuzzaman et al, 2014) generates a variety of ROS such as superoxide (O 2 −), hydrogen peroxide (H 2 O 2 ), singlet oxygen ( 1 O 2 ), and methylglyoxal (MG); they cause oxidative damage of proteins, alter DNA structure, lipids, nucleic acids, and carbohydrates (Cechin et al, 2015; Guan et al, 2000). It may also impair plant metabolic processes such as photosynthesis as well as nutrient uptake and assimilation (Farooq et al, 2009).…”

Section: Salinity Stress Tolerance Mechanism In Plantsmentioning

confidence: 99%

Emerging warriors against salinity in plants: Nitric oxide and hydrogen sulphide

Goyal

Jhanghel

Mehrotra

2021

Physiologia Plantarum

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The agriculture sector is vulnerable to various environmental stresses, which significantly affect plant growth, performance, and development. Abiotic stresses, such as salinity and drought, cause severe losses in crop productivity worldwide. Soil salinity is a major stress suppressing plant development through osmotic stress accompanied by ion toxicity, nutritional imbalance, and oxidative stress. Various defense mechanisms like osmolytes accumulations, activation of stress‐induced genes, and transcription factors, production of plant growth hormones, accumulation of antioxidants, and redox defense system in plants are responsible for combating salt stress. Nitric oxide (NO) and hydrogen sulphide (H2S) have emerged as novel bioactive gaseous signaling molecules that positively impact seed germination, homeostasis, plant metabolism, growth, and development, and are involved in several plant acclimation responses to impart stress tolerance in plants. NO and H2S trigger cell signaling by activating a cascade of biochemical events that result in plant tolerance to environmental stresses. NO‐ and H2S‐mediated signaling networks, interactions, and crosstalks facilitate stress tolerance in plants. Research on the roles and mechanisms of NO and H2S as challengers of salinity is entering an exponential exploration era. The present review focuses on the current knowledge of the mechanisms of stress tolerance in plants and the role of NO and H2S in adaptive plant responses to salt stress and provides an overview of the signaling mechanisms and interplay of NO and H2S in the regulation of growth and development as well as modulation of defense responses in plants and their long term priming effects for imparting salinity tolerance in plants.

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“…This augmented concentration induces oxidative stress to crops. They are highly reactive in action; they can cause injury to cellular structure [69]. In oilseeds like sunflower, drought overproduces ROS [70].…”

Section: Drought Induced Oxidative Stressmentioning

confidence: 99%

Protagonist of Mineral Nutrients in Drought Stress Tolerance of Field Crops

Asghar¹,

Bashir²

2021

Abiotic Stress in Plants

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The food demand is increasing hastily, that is inducing continuous pressure on agriculture sector and industries to fulfill rising dietary needs. To meet with increasing demand, the food production must be elevated up to 70% until the year 2050. On the other hand, changing climate is disturbing crop production around the World. Crops grown under field conditions are affected by more than one abiotic stress. It is continuous task and challenge for agronomists to make crops environment hardy to obtain maximum yield. It is considered that different agronomic managements, if done appropriately, could be beneficial for increasing crop production. The optimal provision of plant nutrients can assist the crops to fight in better way with environmental stress like drought; it can help them to continue their normal metabolism even under hostile abiotic circumstances. The regions that have reduced availability of water for crop production, a balanced nutrient management can assist crops to give adequate production. Some of nutrients have potential of not only maintaining plant metabolism but also to enhance the quality of product. This chapter highlights the protagonist of plant nutrients in alleviation of drought stress in field crops.

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Nitric oxide reduces oxidative damage induced by water stress in sunflower plants

Cited by 45 publications

References 45 publications

Competition between cowpea and weeds for water: Effect on plants growth

Competition between cowpea and weeds for water: Effect on plants growth

Emerging warriors against salinity in plants: Nitric oxide and hydrogen sulphide

Protagonist of Mineral Nutrients in Drought Stress Tolerance of Field Crops

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