The Role of Phytochromes in Stress Tolerance

Carvalho, Rogério Falleiros; Campos, Marcelo Lattarulo; Azevedo, Ricardo Antunes

doi:10.1007/978-1-4614-6108-1_12

Cited by 11 publications

(10 citation statements)

References 128 publications

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“…External JA supplementation could minimize CD accumulation rates in faba bean roots, shoots, and leaves not only by enhancing osmotic and antioxidant activity, but also by inhibiting H 2 O 2 , and MDA accumulation [51]. Noriega et al [52] revealed that JA inhibited lipid peroxidase activity by activating ascorbate or glutathione antioxidant machinery. In addition, the significant increase in HO-1 antioxidant enzyme activity they observed under heavy metal stress could be regulated strictly by ROS homeostasis.…”

Section: Heavy Metal Stressmentioning

confidence: 99%

Functions of Jasmonic Acid in Plant Regulation and Response to Abiotic Stress

Wang

Song

Gong

et al. 2020

IJMS

415

207

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Jasmonic acid (JA) is an endogenous growth-regulating substance, initially identified as a stress-related hormone in higher plants. Similarly, the exogenous application of JA also has a regulatory effect on plants. Abiotic stress often causes large-scale plant damage. In this review, we focus on the JA signaling pathways in response to abiotic stresses, including cold, drought, salinity, heavy metals, and light. On the other hand, JA does not play an independent regulatory role, but works in a complex signal network with other phytohormone signaling pathways. In this review, we will discuss transcription factors and genes involved in the regulation of the JA signaling pathway in response to abiotic stress. In this process, the JAZ-MYC module plays a central role in the JA signaling pathway through integration of regulatory transcription factors and related genes. Simultaneously, JA has synergistic and antagonistic effects with abscisic acid (ABA), ethylene (ET), salicylic acid (SA), and other plant hormones in the process of resisting environmental stress.

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Section: Heavy Metal Stressmentioning

confidence: 99%

Functions of Jasmonic Acid in Plant Regulation and Response to Abiotic Stress

Wang

Song

Gong

et al. 2020

IJMS

415

207

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“…Thus, this sensor triggers the light-dependent signal transduction cascade to regulate the expression of numerous genes that result in specific physiological responses (Viczián et al, 2017). Furthermore, various reports have shown that the plant signaling pathways involved in the responses to abiotic and biotic stresses, including insect herbivory, salinity, drought, hot or cold temperatures, and UV-B radiation, are modulated by phytochromes (Donohue et al, 2008; Ballaré, 2009; Carvalho et al, 2011; D’Amico-Damião et al, 2015; Gavassi et al, 2017). However, these responses remain unclear due to the complex light signaling pathways that are operated by other photoreceptors along the light spectrum (Kami et al, 2010; Fiorucci and Fankhauser, 2017; Demarsy et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Cryptochrome-Related Abiotic Stress Responses in Plants

D’Amico-Damião

Carvalho

2018

Front. Plant Sci.

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It is well known that light is a crucial environmental factor that has a fundamental role in plant growth and development from seed germination to fruiting. For this process, plants contain versatile and multifaceted photoreceptor systems to sense variations in the light spectrum and to acclimate to a range of ambient conditions. Five main groups of photoreceptors have been found in higher plants, cryptochromes, phototropins, UVR8, zeitlupes, and phytochromes, but the last one red/far red wavelengths photoreceptor is the most characterized. Among the many responses modulated by phytochromes, these molecules play an important role in biotic and abiotic stress responses, which is one of the most active research topics in plant biology, especially their effect on agronomic traits. However, regarding the light spectrum, it is not surprising to consider that other photoreceptors are also part of the stress response modulated by light. In fact, it has become increasingly evident that cryptochromes, which mainly absorb in the blue light region, also act as key regulators of a range of plant stress responses, such as drought, salinity, heat, and high radiation. However, this information is rarely evidenced in photomorphogenetic studies. Therefore, the scope of the present review is to compile and discuss the evidence on the abiotic stress responses in plants that are modulated by cryptochromes.

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“…The optimum temperature for tomato growth, fruit set, and yield ranges between 21 and 29.5 °C during the day and between 18.5 and 21 °C during the night [6]. PHYTOCHROMES (PHYs), which absorb red and far-red light, are the most characterized photoreceptors in plants [7]. Plant growth and development (from seed germination to flowering) can be controlled by PHYs.…”

Section: Introductionmentioning

confidence: 99%

“…Plant growth and development (from seed germination to flowering) can be controlled by PHYs. PHYs regulate both biotic stress and stress induced by abiotic factors, such as high and low temperatures, salinity, drought, toxic metals, ultraviolet B radiation, and herbivory [8], by changing a wide range of biochemical and molecular responses [7]. The number and types of PHYs vary among plant species.…”

Section: Introductionmentioning

confidence: 99%

Functional Characterization of Tomato Phytochrome A and B1B2 Mutants in Response to Heat Stress

Abdellatif

Yuan

Renhu

et al. 2022

IJMS

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Heat stress (HS) is a prevalent negative factor affecting plant growth and development, as it is predominant worldwide and threatens agriculture on a large scale. PHYTOCHROMES (PHYs) are photoreceptors that control plant growth and development, and the stress signaling response partially interferes with their activity. PHYA, B1, and B2 are the most well-known PHY types in tomatoes. Our study aimed to identify the role of tomato ‘Money Maker’ phyA and phyB1B2 mutants in stable and fluctuating high temperatures at different growth stages. In the seed germination and vegetative growth stages, the phy mutants were HS tolerant, while during the flowering stage the phy mutants revealed two opposing roles depending on the HS exposure period. The response of the phy mutants to HS during the fruiting stage showed similarity to WT. The most obvious stage that demonstrated phy mutants’ tolerance was the vegetative growth stage, in which a high degree of membrane stability and enhanced water preservation were achieved by the regulation of stomatal closure. In addition, both mutants upregulated the expression of heat-responsive genes related to heat tolerance. In addition to lower malondialdehyde accumulation, the phyA mutant enhanced proline levels. These results clarified the response of tomato phyA and phyB1B2 mutants to HS.

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The Role of Phytochromes in Stress Tolerance

Cited by 11 publications

References 128 publications

Functions of Jasmonic Acid in Plant Regulation and Response to Abiotic Stress

Functions of Jasmonic Acid in Plant Regulation and Response to Abiotic Stress

Cryptochrome-Related Abiotic Stress Responses in Plants

Functional Characterization of Tomato Phytochrome A and B1B2 Mutants in Response to Heat Stress

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