Citrus Huanglongbing is a pathogen-triggered immune disease that can be mitigated with antioxidants and gibberellin

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Jan. 26, 2022

Abstract Huanglongbing (HLB) is a devastating disease of citrus, caused by the phloem-colonizing bacterium Candidatus Liberibacter asiaticus (CLas). Here, we present evidence that HLB an immune-mediated disease. We show CLas infection Citrus sinensis stimulates systemic and chronic immune responses in phloem tissue, including callose deposition, production reactive oxygen species (ROS) such as H 2 O , induction immunity-related genes. The also upregulates genes encoding ROS-producing NADPH oxidases, downregulates antioxidant enzyme genes, supporting causes oxidative stress. CLas-triggered ROS localizes phloem-enriched bark tissue followed cell death companion sieve element cells. Inhibition levels CLas-positive stems oxidase inhibitor diphenyleneiodonium (DPI) indicates oxidases contribute to production. To investigate potential treatments, addition growth hormone gibberellin (known have immunoregulatory activities) -scavenging enzymes oxidases. Furthermore, foliar spray HLB-affected citrus with or antioxidants (uric acid, rutin) reduces concentrations tissues symptoms. Thus, our results indicate can be mitigated gibberellin.

Language: Английский

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Microplastics may increase the environmental risks of Cd via promoting Cd uptake by plants: A meta-analysis

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 448, P. 130887 - 130887

Published: Jan. 30, 2023

Microplastics (MPs) and cadmium (Cd) are widely distributed in soil ecosystems, posing a potential threat to agricultural production human health. However, the coupled effects of MPs Cd soil-plant systems remain largely unknown, especially on large scale. In this study, meta-analysis was conducted evaluate influence plant growth accumulation under contamination conditions. Our results showed that had significantly negative shoot biomass (a decrease 11.8 %) root 8.79 %). also increased shoots roots by 14.6 % 13.5 %, respectively, revealing promote uptake. Notably, polyethylene displayed stronger promoting effect (an increase 29.4 among these MP types. induced (9.75 concentration available slight pH, which may be main driver addition posed physiological toxicity risks plants inhibiting photosynthesis enhancing oxidative damage, directly demonstrating combination with can pose synergetic plants. We further noted altered microbial diversity, likely influencing bioavailability systems. Overall, our study has important implications for combined impacts provides new insights into developing guidelines sustainable use agriculture.

Language: Английский

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How to Cope with the Challenges of Environmental Stresses in the Era of Global Climate Change: An Update on ROS Stave off in Plants

International Journal of Molecular Sciences, Journal Year: 2022, Volume and Issue: 23(4), P. 1995 - 1995

Published: Feb. 11, 2022

With the advent of human civilization and anthropogenic activities in shade urbanization global climate change, plants are exposed to a complex set abiotic stresses. These stresses affect plants’ growth, development, yield cause enormous crop losses worldwide. In this alarming scenario conditions, respond such through highly balanced finely tuned interaction between signaling molecules. The initiate quick release reactive oxygen species (ROS) as toxic by-products altered aerobic metabolism during different stress conditions at cellular level. ROS includes both free radicals {superoxide (O2•−) hydroxyl (OH−)} well non-radicals [hydrogen peroxide (H2O2) singlet (1O2)]. can be generated scavenged cell organelles cytoplasm depending on type stimulus. At high concentrations, lipid peroxidation, DNA damage, protein oxidation, necrosis, but low moderate they play crucial role secondary messengers intracellular cascades. Because their concentration-dependent dual role, huge number molecules tightly control level cells. have evolved antioxidants scavenging machinery equipped with enzymes maintain equilibrium production detoxification stress. present article, we focused current insights generation Moreover, article will act knowledge base for new pivotal studies scavenging.

Language: Английский

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Plants and rhizospheric environment: Affected by zinc oxide nanoparticles (ZnO NPs). A review

Plant Physiology and Biochemistry, Journal Year: 2022, Volume and Issue: 185, P. 91 - 100

Published: May 27, 2022

Language: Английский

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Physiological and biochemical roles of ascorbic acid on mitigation of abiotic stresses in plants

Plant Physiology and Biochemistry, Journal Year: 2023, Volume and Issue: 202, P. 107970 - 107970

Published: Aug. 16, 2023

Language: Английский

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The central role of transcription factors in bridging biotic and abiotic stress responses for plants’ resilience

New Crops, Journal Year: 2023, Volume and Issue: 1, P. 100005 - 100005

Published: Nov. 18, 2023

Plants are adversely affected by a wide range of abiotic and biotic stresses during their life cycle. In real ecological environments, multiple often occur simultaneously have huge effects on the yield nutritional content crops. Crosstalk is regarded to exist between these different stresses. To date, most research focuses interaction plants single stress, much remains be discussed response crosstalk more than one stress. imposed with stress been shown affect responses other evolved sophisticated networks through long-term coexistence Transcription factors, as master regulators stress-responsive genes, crucial nodes posed excellent candidates for crop improvement. Studies that some transcription factors can modulate tolerance It speculated may act convergence regulation in Different such NAC, MYB, WRKY, bHLH, ERF/DREB, extensively studied, implying vital roles responses. Moreover, phytohormone signaling pathways regulated abscisic acid, salicylic jasmonic ethylene, ROS play key signaling. This review summarizes progress plant molecular mechanism mediated respond participating also discussed.

Language: Английский

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Effect of copper oxide and zinc oxide nanoparticles on photosynthesis and physiology of Raphanus sativus L. under salinity stress

Plant Physiology and Biochemistry, Journal Year: 2023, Volume and Issue: 206, P. 108281 - 108281

Published: Dec. 24, 2023

The study evaluates the impact of two metal oxide nanoparticles: copper (CuO) and zinc (ZnO) on growth physiology Raphanus sativus L. (radish) under salinity stress. Fifteen days old seedlings R. were subjected to different concentrations salt stress (0 mM, 150 300 mM NaCl) alone in interaction with 100 mgL

Language: Английский

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Inflammatory response of nanoparticles: Mechanisms, consequences, and strategies for mitigation

Chemosphere, Journal Year: 2024, Volume and Issue: 363, P. 142826 - 142826

Published: July 11, 2024

Language: Английский

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Recent Advancements in Mitigating Abiotic Stresses in Crops

Horticulturae, Journal Year: 2024, Volume and Issue: 10(2), P. 156 - 156

Published: Feb. 7, 2024

In recent years, the progressive escalation of climate change scenarios has emerged as a significant global concern. The threat to food security posed by abiotic stresses such drought, salinity, waterlogging, temperature stress (heat stress, freezing, and chilling), high heavy metal accumulation is substantial. implementation any these on agricultural land induces modifications in morphological, biochemical, physiological processes plants, leading diminished rates germination, growth, photosynthesis, respiration, hormone enzyme activity disruption, heightened oxidative ultimately, reduction crop productivity. It anticipated that frequency will progressively escalate future result rise events. Therefore, it crucial develop productive strategies mitigate adverse effects challenges agriculture industry improve resilience yield. Diverse have been implemented, including development cultivars are resistant through application both conventional modern breeding techniques. An additional prospective emerging technology speed acceleration tolerance cultivar development. Additionally, plant growth regulators, osmoprotectants, nutrient water management, planting time, seed priming, microbial treatment, arbuscular mycorrhiza regarded effective methods for mitigating stresses. biochar, kaolin, chitosan, superabsorbent, yeast extract, seaweed extract examples promising environmentally benign agronomic techniques shown crops; however, their exact mechanisms still not yet fully understood. Hence, collaboration among researchers should be intensified elucidate involved action technologies. This review provides comprehensive current compilation scientific information trends, along with innovative enhance productivity under conditions.

Language: Английский

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Dynamic interplay of reactive oxygen and nitrogen species (ROS and RNS) in plant resilience: unveiling the signaling pathways and metabolic responses to biotic and abiotic stresses

Plant Cell Reports, Journal Year: 2024, Volume and Issue: 43(8)

Published: July 18, 2024

Language: Английский

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