Antioxidant defense during desiccation of the resurrection plant Haberlea rhodopensis

Georgieva, Katya; Dagnon, Soleya; Gesheva, E.; Bojilov, Dimitar; Mihailova, Gergana; Doncheva, Snejana

doi:10.1016/j.plaphy.2017.02.021

Cited by 32 publications

(28 citation statements)

References 51 publications

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“…Light of high intensity can damage plant cells and produce ROS (Mullineaux et al, 2018;Pinto-Marijuan & Munne-Bosch, 2014;Szymańska et al, 2017), and plants can scavenge ROS by activating antioxidant systems (enzymatic antioxidant systems and non-enzymatic antioxidant systems). The non-enzymatic antioxidant systems include secondary metabolites such as ascorbic acid, carotenoids, and α-tocopherol (Georgieva et al, 2017;Kataria et al, 2019;Soares et al, 2018). Similarly, phenols and flavonoids can be used as ROS scavengers to remove ROS in plants (Franzoni et al, 2019;Liao, Greenspan & Pegg, 2019;Meini et al, 2019;Naikoo et al, 2019;Schenke et al, 2019;Xiang et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Response of total phenols, flavonoids, minerals, and amino acids of four edible fern species to four shading treatments

Wang

Gao

et al. 2020

PeerJ

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Total phenols, flavonoids, minerals and amino acids content were investigated in leaves of four fern species grown under four shading treatments with different sunlight transmittance in 35% full sunlight (FS), 13% FS, 8% FS and 4% FS. The leaves of four fern species contain high levels of total phenols and flavonoids, abundant minerals and amino acids, and these all were strongly affected by transmittance. Total phenols and flavonoids content were significantly positively correlated with transmittance, while minerals and total amino acids content were significantly negatively correlated with transmittance, a finding that supports research into how higher light intensity can stimulate the synthesis of phenols and flavonoids, and proper shading can stimulate the accumulation of minerals and amino acids. Matteuccia struthiopteris (L.) Todaro (MS) had the highest total phenols content, Athyrium multidentatum (Doll.) Ching (AM) showed the highest total amino acids, total essential amino acids content, Osmunda cinnamomea (L) var. asiatica Fernald (OCA) exhibited the highest total non-essential amino acids and flavonoids content. Pteridium aquilinum (L.) Kuhn var. latiusculum (Desy.) Underw. ex Heller (PAL) exhibited the highest minerals content. This research can provide a scientific basis for the cultivation and management of those four fern species.

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Section: Discussionmentioning

confidence: 99%

Response of total phenols, flavonoids, minerals, and amino acids of four edible fern species to four shading treatments

Wang

Gao

et al. 2020

PeerJ

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“…The de‐epoxidised carotenoid zeaxanthin plays additional important roles as a thylakoid stabiliser and as an antioxidant upon desiccation (Havaux, 1998; Kranner et al , 2002; Fernández‐Marín et al , 2013). Ascorbate and glutathione play a relevant role as hydrophilic antioxidants, alongside some phenolic compounds (Sgherri et al , 2004; Georgieva et al , 2017a). In general, metabolomics and transcriptomics studies have demonstrated a reprogramming of leaf cells by means of protection at the expense of photosynthesis and growth (Gechev et al , 2013).…”

Section: Introductionmentioning

confidence: 99%

Born to revive: molecular and physiological mechanisms of double tolerance in a paleotropical and resurrection plant

et al. 2020

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Summary Resurrection plants recover physiological functions after complete desiccation. Almost all of them are native to tropical warm environments. However, the Gesneriaceae include four genera, remnant of the past palaeotropical flora, which inhabit temperate mountains. One of these species is additionally freezing‐tolerant: Ramonda myconi. We hypothesise that this species has been able to persist in a colder climate thanks to some resurrection‐linked traits. To disentangle the physiological mechanisms underpinning multistress tolerance to desiccation and freezing, we conducted an exhaustive seasonal assessment of photosynthesis (gas exchange, limitations to partitioning, photochemistry and galactolipids) and primary metabolism (through metabolomics) in two natural populations at different elevations. R. myconi displayed low rates of photosynthesis, largely due to mesophyll limitation. However, plants were photosynthetically active throughout the year, excluding a reversible desiccation period. Common responses to desiccation and low temperature involved chloroplast protection: enhanced thermal energy dissipation, higher carotenoid to Chl ratio and de‐epoxidation of the xanthophyll cycle. As specific responses, antioxidants and secondary metabolic routes rose upon desiccation, while putrescine, proline and a variety of sugars rose in winter. The data suggest conserved mechanisms to cope with photo‐oxidation during desiccation and cold events, while additional metabolic mechanisms may have evolved as specific adaptations to cold during recent glaciations.

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“…Jiang and coworkers identified increased production of glutathione S-transferase in response to dehydration in B. hygrometrica , in special during the early stages of dehydration using proteome assays ( Jiang et al, 2007 ). The participation of glutathione to protect desiccation-tolerant plants has been described in many species, including H. rhodopensis ( Georgieva et al, 2017 ), B. hygrometrica ( Jiang et al, 2007 ), and S. stapfianus ( Oliver et al, 2011 ), to name a few. Apart from glutathione-producing enzymes, other proteins such as ascorbate peroxidase (ascorbate acts as a scavenger of hydrogen peroxide), or superoxide dismutase have been reported as proteins involved in oxidative mechanisms in several desiccation-tolerant plants, such as X. viscosa ( Sherwin and Farrant, 1998 ; Farrant, 2000 ).…”

Section: Resultsmentioning

confidence: 99%

Proteome Comparison Between Natural Desiccation-Tolerant Plants and Drought-Protected Caspicum annuum Plants by Microbacterium sp. 3J1

2020

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Desiccation-tolerant plants are able to survive for extended periods of time in the absence of water. The molecular understanding of the mechanisms used by these plants to resist droughts can be of great value for improving drought tolerance in crops. This understanding is especially relevant in an environment that tends to increase the number and intensity of droughts. The combination of certain microorganisms with drought-sensitive plants can improve their tolerance to water scarcity. One of these bacteria is Microbacterium sp. 3J1, an actinobacteria able to protect pepper plants from drought. In this study, we supplemented drought-tolerant and drought-sensitive plant rhizospheres with Microbacterium sp. 3J1 and analyzed their proteomes under drought to investigate the plant-microbe interaction. We also compare this root proteome with the proteome found in desiccation-tolerant plants. In addition, we studied the proteome of Microbacterium sp. 3J1 subjected to drought to analyze its contribution to the plantmicrobe interaction. We describe those mechanisms shared by desiccation-tolerant plants and sensitive plants protected by microorganisms focusing on protection against oxidative stress, and production of compatible solutes, plant hormones, and other more specific proteins.

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Antioxidant defense during desiccation of the resurrection plant Haberlea rhodopensis

Cited by 32 publications

References 51 publications

Response of total phenols, flavonoids, minerals, and amino acids of four edible fern species to four shading treatments

Response of total phenols, flavonoids, minerals, and amino acids of four edible fern species to four shading treatments

Born to revive: molecular and physiological mechanisms of double tolerance in a paleotropical and resurrection plant

Proteome Comparison Between Natural Desiccation-Tolerant Plants and Drought-Protected Caspicum annuum Plants by Microbacterium sp. 3J1

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