Gibberellic acid application on biomass, oxidative stress response, and photosynthesis in spinach (Spinacia oleracea L.) seedlings under copper stress

Gong, Qin; Li, Zhaohua; Wang, Ling; Zhou, Jingyi; Kang, Qun; Niu, Duandan

doi:10.1007/s11356-021-13745-5

Cited by 36 publications

(18 citation statements)

References 57 publications

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“…Cu is one of the essential trace elements that are necessary to maintain the regular growth and development of plants. As a cofactor, it is the active center of various enzymes and is widely involved in numerous biological activities, such as protein transport, cell wall metabolism, respiration/photosynthesis electron transfer, and hormone signal transduction [ 4 ]. Cu deficiency leads to the attenuation of plant growth, distortion or the yellowing of young leaves (chlorosis), curling of the leaf margins, damage to the apical meristems, and decreased seed setting rates [ 5 , 6 ].…”

Section: The Biological Functions Of Coppermentioning

confidence: 99%

“…Plants develop various abnormal phenotypes when they are grown under Cu-deficient conditions, including stunted growth and reproductive development, twisted young leaves, and insufficient water transport [ 3 ]. However, excessive Cu can also adversely affect plant growth and metabolism; seriously interfere with plant growth and development and nutrient absorption; inhibit photosynthesis, root development, and leaf extension; and affect the functions of some key cellular components, such as proteins, lipids, DNA, and RNA [ 4 ]. Elucidating the biochemical activities of Cu in soil-plant systems is critical to maintaining regular plant development and sturdy growth.…”

Section: Introductionmentioning

confidence: 99%

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Physiological and Molecular Mechanisms of Plant Responses to Copper Stress

Chen

Han

et al. 2022

IJMS

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Copper (Cu) is an essential micronutrient for humans, animals, and plants, and it participates in various morphological, physiological, and biochemical processes. Cu is a cofactor for a variety of enzymes, and it plays an important role in photosynthesis, respiration, the antioxidant system, and signal transduction. Many studies have demonstrated the adverse effects of excess Cu on crop germination, growth, photosynthesis, and antioxidant activity. This review summarizes the biological functions of Cu, the toxicity of excess Cu to plant growth and development, the roles of Cu transport proteins and chaperone proteins, and the transport process of Cu in plants, as well as the mechanisms of detoxification and tolerance of Cu in plants. Future research directions are proposed, which provide guidelines for related research.

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Section: The Biological Functions Of Coppermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Physiological and Molecular Mechanisms of Plant Responses to Copper Stress

Chen

Han

et al. 2022

IJMS

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“…Its application significantly reduced the Cd absorption and translocation from roots to shoots in lettuce plant. Furthermore, gibberellins diminish the damaging effects of copper in spinach seedlings by increasing the concentration of proline and activities of antioxidant enzymes (Gong et al, 2021). Jasmonic acid (JA) is signaling molecule involved in governing of cellular defense and sequential developments in plants (Gomi, 2021).…”

Section: Plant Growth Regulatorsmentioning

confidence: 99%

Heavy Metal Toxicity in Plants: An Overview on Tolerance Mechanisms and Management Strategies

Yavaş

Ali

Abbas

et al. 2022

Turkish JAF Sci.Tech.

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Heavy metals are one of the factors that pollute the environment and significantly affect soil fertility, plant physiology, development, and productivity. The tolerance of plants to toxicity depends on the species and tissue, element type, and duration of exposure to stress. Some special signal molecules such as nitric oxide (NO), hydrogen peroxide (H2O2), beneficial ions, hyperaccumulating plants, stress hormones, nanoparticles, organic compounds, and microbial applications can be recommended to alleviate the stress effects caused by toxic heavy metals in plants. Induction of other promising techniques like seed priming, active involvement of plant growth regulator, use of osmoprotectants, successful plant microbes’ crosstalk and recent utilization of nanoparticles are worth using strategies in mitigation of heavy metal stress in plants. These practices effectively regulate the activities of antioxidant enzymes for the alleviation of stress in plants, creditably improving the plant tolerance via preserving cell homeostasis and amending the adversative effects of heavy metal stress in plants. These inventive strategies offer an enriched understanding of how to boost crop productivity under heavy metal stress in order to decrease the risk to global food security.

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“…Copper Toxicity in Plants: Nutritional, Physiological, and Biochemical Aspects DOI: http://dx.doi.org/10.5772/intechopen.105212 components of photosynthesis, such as Rubisco. Toxic Cu (700 mg kg −1 ) negatively affects photosynthesis, transpiration, stomatal conductance, and internal cell concentration in plants [45]. Toxic levels of Cu (800 mg kg-1) cause a considerable reduction in photosynthesis and stomatal conductance, with deleterious effects on plant height and stem diameter [13].…”

Section: Effect Of Copper Toxicity On Gas Exchangementioning

confidence: 99%

“…Cu toxicity (700 mg kg −1 ) has a negative impact on gas exchange (photosynthesis, transpiration, stomatal conductance, and internal cell concentration), chloroplast (chlorophylls a and b, and carotenoids), and photochemical parameters (Fv/Fm, qP, and ETR). These changes promoted by Cu contribute decisively to the reduction of vegetative growth [45]. Furthermore, Cu has a specific action in inhibiting the oxygen evolution complex in photosystem II, which is associated with the oxidation of cytochrome b559 [5,38].…”

Section: Specie Root Cu Concentration Shoot Cu Concentration Referencesmentioning

confidence: 99%

Copper Toxicity in Plants: Nutritional, Physiological, and Biochemical Aspects

Cruz¹,

Ferreira²,

Conceição³

et al. 2022

Advances in Plant Defense Mechanisms

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Copper (Cu) is an essential micronutrient for plants because it participates in several redox reactions and the structural constitution of the Fe–Cu cluster. Although it is required in small concentrations at toxic levels, Cu triggers physiological and biochemical disorders that reduce plant growth. In higher plants, the normal range of Cu concentration is in the range of 2–20 mg Cu kg−1 DW. Above the upper limit of this range, Cu toxicity may occur if the plants are not tolerant to the stress caused by toxic levels of Cu. In view of the growing agricultural and industrial activity that are the main sources of Cu addition in nature, understanding the physiological and biochemical mechanisms of Cu toxicity in plants constitutes an important tool for the selection of more tolerant genotypes based on biochemical and physiological indicators to heavy metal stresses. In this chapter, we propose a systematic review of plants grown under toxic levels of Cu, based on the responses of physiological, biochemical, and nutritional variables. Understanding these responses will contribute to improving the understanding of the basic mechanisms of stress tolerance by toxic levels of Cu in higher plants, providing valuable information for the improvement of genotypes resistant to toxic levels of Cu in the plant culture medium.

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Gibberellic acid application on biomass, oxidative stress response, and photosynthesis in spinach (Spinacia oleracea L.) seedlings under copper stress

Cited by 36 publications

References 57 publications

Physiological and Molecular Mechanisms of Plant Responses to Copper Stress

Physiological and Molecular Mechanisms of Plant Responses to Copper Stress

Heavy Metal Toxicity in Plants: An Overview on Tolerance Mechanisms and Management Strategies

Copper Toxicity in Plants: Nutritional, Physiological, and Biochemical Aspects

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