Syringaldazine peroxidase stimulates lignification by enhancing polyamine catabolism in wheat during heat and drought stress

Bala, Shashi; Asthir, Bavita; Bains, N. S.

doi:10.1556/0806.44.2016.028

Cited by 10 publications

(3 citation statements)

References 29 publications

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“…Based on our data, it seems that in response/adaptation to the sun, heat, and drought, both N. northiana and rafflesiana developed a self-protection strategy by increasing lignification to inhibit water loss from plant tissue 87 . Similar adaptation mechanisms have been shown for Norway spruce, Ctenanthe setosa , and wheat 88 – 90 .…”

Section: Discussionsupporting

confidence: 76%

A comparative UHPLC-Q/TOF–MS-based eco-metabolomics approach reveals temperature adaptation of four Nepenthes species

Wong

Ling

Wee

et al. 2020

Sci Rep

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Nepenthes, as the largest family of carnivorous plants, is found with an extensive geographical distribution throughout the Malay Archipelago, specifically in Borneo, Philippines, and Sumatra. Highland species are able to tolerate cold stress and lowland species heat stress. Our current understanding on the adaptation or survival mechanisms acquired by the different Nepenthes species to their climatic conditions at the phytochemical level is, however, limited. In this study, we applied an eco-metabolomics approach to identify temperature stressed individual metabolic fingerprints of four Nepenthes species: the lowlanders N. ampullaria, N. rafflesiana and N. northiana, and the highlander N. minima. We hypothesized that distinct metabolite regulation patterns exist between the Nepenthes species due to their adaptation towards different geographical and altitudinal distribution. Our results revealed not only distinct temperature stress induced metabolite fingerprints for each Nepenthes species, but also shared metabolic response and adaptation strategies. The interspecific responses and adaptation of N. rafflesiana and N. northiana likely reflected their natural habitat niches. Moreover, our study also indicates the potential of lowlanders, especially N. ampullaria and N. rafflesiana, to produce metabolites needed to deal with increased temperatures, offering hope for the plant genus and future adaption in times of changing climate.

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Section: Discussionsupporting

confidence: 76%

A comparative UHPLC-Q/TOF–MS-based eco-metabolomics approach reveals temperature adaptation of four Nepenthes species

Wong

Ling

Wee

et al. 2020

Sci Rep

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“…Importantly, under drought stress, the LACCASE2 gene was observed to be downregulated by miR397b so that lignin deposition can be accelerated as a survival strategy (Sharma et al, 2020). In wheat plants, lignin deposition was observed to be enhanced by SYRINGALDAZINE PEROXIDASE via speeding up the polyamine degradation process upon drought (Bala et al, 2016). In a study on maize plants, the lignin-based hydrogel was found to be promising to mitigate drought-related adversities by elevating water content, proline, phosphorus, and biomass and by reducing electrolyte leakage (Mazloom et al, 2020).…”

Section: Lignin In Drought Stressmentioning

confidence: 99%

Crosstalk between phytohormones and secondary metabolites in the drought stress tolerance of crop plants: A review

Jogawat

Yadav

Chhaya

et al. 2021

Physiologia Plantarum

245

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Drought stress negatively affects crop performance and weakens global food security. It triggers the activation of downstream pathways, mainly through phytohormones homeostasis and their signaling networks, which further initiate the biosynthesis of secondary metabolites (SMs). Roots sense drought stress, the signal travels to the above-ground tissues to induce systemic phytohormones signaling. The systemic signals further trigger the biosynthesis of SMs and stomatal closure to prevent water loss. SMs primarily scavenge reactive oxygen species (ROS) to protect plants from lipid peroxidation and also perform additional defense-related functions.Moreover, drought-induced volatile SMs can alert the plant tissues to perform drought stress mitigating functions in plants. Other phytohormone-induced stress responses include cell wall and cuticle thickening, root and leaf morphology alteration, and anatomical changes of roots, stems, and leaves, which in turn minimize the oxidative stress, water loss, and other adverse effects of drought. Exogenous applications of phytohormones and genetic engineering of phytohormones signaling and biosynthesis pathways mitigate the drought stress effects. Direct modulation of the SMs biosynthetic pathway genes or indirect via phytohormones' regulation provides drought tolerance. Thus, phytohormones and SMs play key roles in plant development under the drought stress environment in crop plants. | INTRODUCTIONA large segment of the population is going to face food scarcity due to climate change and the gradually decreasing arable land area. Plants are confronted to a variable environment while growing from seedling to mature plant. Different abiotic and biotic stresses affect plant growth and development (Cramer et al., 2011;Fujita et al., 2006;Tuteja & Sopory, 2008). Abiotic stress includes drought, submergence, osmotic stress, salinity stress, oxidative stress, ultra-violet irradiation, wounding, and nutrient depletion. The extremity of optimum factors such as high temperature or low temperature and freezing-thawing is also included in abiotic stresses. Biotic stresses include viruses, bacteria, fungi, algae, worms, nematodes, insects, herbivores, and parasitic plants. Plants have to combat these stressors due to their sessile lifestyle (Cramer et al., 2011;Fujita et al., 2006). More than 50% reduction in average yields of major cereal crops has been reported because of various abiotic stresses. Drought is one of the most important abiotic stresses that negatively influence plant performance and causes harsh effects on biomass and yield (Fahad et al., 2017). A

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“…Several studies across various species have demonstrated that water stress leads to a decrease in lignin content (Moura et al, 2010; Dos Santos et al, 2015; Van Der Weijde et al, 2017; Perrier et al, 2017; EL Hage et al, 2018), as well as in PCest when investigated (El Hage et al, 2018). Furthermore, although studies focusing on the isolated effect of heat stress are rarer, they suggest an influence of heat on the lignification process (Bala et al ., 2016). The synthesis of phenolic compounds represents a significant and irreversible investment of carbon and energy for the plant, subject to various regulatory levels.…”

Section: Discussionmentioning

confidence: 99%

Cell wall digestibility outperforms ear in maintaining digestibility even under severe combined water and heat stress

Main,

López-Malvar,

Meunier

et al. 2024

Preprint

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Forage maize is a central pillar of dairy cow feeding in France, directly influencing milk production. Drought significantly affects both its yield and digestibility, which are essential for registration purposes. Research on inbred lines revealed droughts notable effect on dry matter and cell wall digestibilities, directly impacting forage quality. Nevertheless, further investigation is warranted due to increasing frequency of drought. To delve deeper, we grew a range of modern forage maize hybrids for two years under four different field water-monitored modalities, representing a total of eight environmental conditions. The resulting dataset allowed us to perform a multiscale analysis, integrating agroclimatic, agronomic, biochemical and histological traits. By establishing a comprehensive heat and water stress index, we classified the environmental conditions. We demonstrated that under severe stress, ear production decreases significantly, but dry matter digestibility can be maintained through increased cell wall digestibility. This boost in cell wall digestibility was due to a reduction in p-hydroxycinnamic acid content, while lignin content remained relatively stable between environments. The significance of lignin distribution increased with the severity of the stress, reaching an extreme threshold where biochemical parameters solely account for digestibility variations.

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Syringaldazine peroxidase stimulates lignification by enhancing polyamine catabolism in wheat during heat and drought stress

Cited by 10 publications

References 29 publications

A comparative UHPLC-Q/TOF–MS-based eco-metabolomics approach reveals temperature adaptation of four Nepenthes species

A comparative UHPLC-Q/TOF–MS-based eco-metabolomics approach reveals temperature adaptation of four Nepenthes species

Crosstalk between phytohormones and secondary metabolites in the drought stress tolerance of crop plants: A review

Cell wall digestibility outperforms ear in maintaining digestibility even under severe combined water and heat stress

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