Strigolactones: A Novel Carotenoid-Derived Phytohormone – Biosynthesis, Transporters, Signalling, and Mechanisms in Abiotic Stress

Hossain, Akbar; Raza, Ali; Maitra, Sagar; Asaduzzaman, Md.; Islam, Rafiqul; Hossain, Jamil; Sabagh, Ayman El; Garai, Sourav; Mondal, Mousumi; Latef, Arafat Abdel Hamed Abdel; Aftab, Tariq

doi:10.1007/978-3-030-61153-8_13

Cited by 9 publications

(5 citation statements)

References 176 publications

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“…Strigolactones (SLs), an emerging phytohormone class, are derived from carotenoids. Several enzymes located in the cytosol and plastids react with carotenoids to generate SLs in the form of apocarotenoid compounds ( Cooper et al, 2018 ; Hossain et al, 2021 ). SLs are exuded by 80% of the roots of land plants and have been implicated in the symbiotic relationships of arbuscular mycorrhizae ( Cooper et al, 2018 ; Zwanenburg and Blanco-Ania, 2018 ).…”

Section: Interplay Of Plant Hormones In Conferring Abiotic-induced Ox...mentioning

confidence: 99%

Plant hormones and neurotransmitter interactions mediate antioxidant defenses under induced oxidative stress in plants

et al. 2022

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Due to global climate change, abiotic stresses are affecting plant growth, productivity, and the quality of cultivated crops. Stressful conditions disrupt physiological activities and suppress defensive mechanisms, resulting in stress-sensitive plants. Consequently, plants implement various endogenous strategies, including plant hormone biosynthesis (e.g., abscisic acid, jasmonic acid, salicylic acid, brassinosteroids, indole-3-acetic acid, cytokinins, ethylene, gibberellic acid, and strigolactones) to withstand stress conditions. Combined or single abiotic stress disrupts the normal transportation of solutes, causes electron leakage, and triggers reactive oxygen species (ROS) production, creating oxidative stress in plants. Several enzymatic and non-enzymatic defense systems marshal a plant’s antioxidant defenses. While stress responses and the protective role of the antioxidant defense system have been well-documented in recent investigations, the interrelationships among plant hormones, plant neurotransmitters (NTs, such as serotonin, melatonin, dopamine, acetylcholine, and γ-aminobutyric acid), and antioxidant defenses are not well explained. Thus, this review discusses recent advances in plant hormones, transgenic and metabolic developments, and the potential interaction of plant hormones with NTs in plant stress response and tolerance mechanisms. Furthermore, we discuss current challenges and future directions (transgenic breeding and genome editing) for metabolic improvement in plants using modern molecular tools. The interaction of plant hormones and NTs involved in regulating antioxidant defense systems, molecular hormone networks, and abiotic-induced oxidative stress tolerance in plants are also discussed.

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Section: Interplay Of Plant Hormones In Conferring Abiotic-induced Ox...mentioning

confidence: 99%

Plant hormones and neurotransmitter interactions mediate antioxidant defenses under induced oxidative stress in plants

et al. 2022

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“…Since plants are sessile organisms, they have to face such environmental adverse conditions. Among various environmental changes, water deficit or drought, water logging, high salinity, low or high temperature, heavy metals, and solar radiation are detrimental for optimum plant growth and development (Raza et al, 2020;Hossain et al, 2021). Thus, leading to decreases in biomass and grain yields at a global scale (Achard et al, 2006;Gururani et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Phytohormones as Growth Regulators During Abiotic Stress Tolerance in Plants

et al. 2022

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Phytohormones (PHs) play crucial role in regulation of various physiological and biochemical processes that govern plant growth and yield under optimal and stress conditions. The interaction of these PHs is crucial for plant survival under stressful environments as they trigger signaling pathways. Hormonal cross regulation initiate a cascade of reactions which finely tune the physiological processes in plant architecture that help plant to grow under suboptimal growth conditions. Recently, various studies have highlighted the role of PHs such as abscisic acid, salicylic acid, ethylene, and jasmonates in the plant responses toward environmental stresses. The involvement of cytokinins, gibberellins, auxin, and relatively novel PHs such as strigolactones and brassinosteroids in plant growth and development has been documented under normal and stress conditions. The recent identification of the first plant melatonin receptor opened the door to this regulatory molecule being considered a new plant hormone. However, polyamines, which are not considered PHs, have been included in this chapter. Various microbes produce and secrete hormones which helped the plants in nutrient uptake such as N, P, and Fe. Exogenous use of such microbes help plants in correcting nutrient deficiency under abiotic stresses. This chapter focused on the recent developments in the knowledge related to PHs and their involvement in abiotic stresses of anticipation, signaling, cross-talk, and activation of response mechanisms. In view of role of hormones and capability of microbes in producing hormones, we propose the use of hormones and microbes as potential strategy for crop stress management.

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“…K+ can also control SOD (super oxidase dismutase) enzyme activity to reduce ROS-induced cell membrane damage [96]. Plant hormones, secondary metabolites, and other essential molecules, such as carbohydrates, amino acids, and polyamines, alter membrane stabilization, osmoregulation, ROS scavenging, decrease leaf area, and abscission, promote root development and lessen ion leakage to significantly contribute to stress tolerance mechanisms and increase plant adaptation capacity [97]. By shielding plants from the oxidative stress brought on by a lack of water, increased antioxidant defenses also aid to promote drought tolerance.…”

Section: The Defense Mechanisms Used By Wheat Plants To Stave Off Dro...mentioning

confidence: 99%

Drought Stress Impacts and the Role of Endophytic Fungi Combating Abiotic Stress on Wheat

george,

mohammed,

Muhammad

et al. 2024

Bulletin of Faculty of Science, Zagazig University

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Wheat is a sizable grain crop that is grown all over the world. However, under the stress of drought, wheat productivity declines dramatically in many growing places around the world. Wheat yields significantly decrease due to water shortage during the crucial period of growth. Wheat growth, from germination through maturity, is impacted by drought stress in every way. The stress of a drought impairs a variety of plant metabolic functions. There is a reduction in both photosynthesis and the amount of chlorophyll in the leaf. In addition to having extra effects on a number of physiological systems, increased generation of reactive oxygen species (ROS) damages RNA and DNA through oxidative deterioration. This detrimental effect of dryness can be reversed by the endophytic fungi (EF). The use of endophytic fungi can improve plant development in drought-prone environments by modifying hormonal balance, maintaining nutritional status, and producing plant growth regulators. This function of fungi influences physiological and biochemical characteristics favorably, increasing the number of leaves, water content, photosynthetic pigments, and ascorbic acid. Fungi reduce drought effects by boosting antioxidant defense mechanisms and boosting plant growth and production to promote sustainable agriculture. Different consequences of drought stress on wheat are covered in this paper, as well as how the consortium of endophytes may be able to enhance wheat's ability to adapt to drought

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Strigolactones: A Novel Carotenoid-Derived Phytohormone – Biosynthesis, Transporters, Signalling, and Mechanisms in Abiotic Stress

Cited by 9 publications

References 176 publications

Plant hormones and neurotransmitter interactions mediate antioxidant defenses under induced oxidative stress in plants

Plant hormones and neurotransmitter interactions mediate antioxidant defenses under induced oxidative stress in plants

Phytohormones as Growth Regulators During Abiotic Stress Tolerance in Plants

Drought Stress Impacts and the Role of Endophytic Fungi Combating Abiotic Stress on Wheat

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