Response of secondary metabolites to Cu in the Cu-hyperaccumulator lichen Stereocaulon japonicum

Nakajima, Hiromitsu; Fujimoto, Naoki; Yamamoto, Yoshikazu; Amemiya, Takashi; Itoh, Kiminori

doi:10.1007/s11356-018-3624-4

Cited by 13 publications

(4 citation statements)

References 28 publications

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“…malate, citrate and oxalate; fatty acids, e.g. oleic acid and palmitoleic acid (Yusuf et al ., 2012; Ritter et al ., 2014; Nakajima et al ., 2019).…”

Section: Introductionmentioning

confidence: 99%

Analysis of physiological and metabolite response of Celosia argentea to copper stress

Wang

et al. 2021

Plant Biol J

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Copper‐tolerant (Cu) plants with high ornamental value play an important role in the ecological restoration of the copper tail mining area. We first discovered Celosia argentea adaptability in a copper mine area in China; however, its resistance to Cu and the underlying mechanism are not clear. In this study, C. argentea was selected for pot culture experiments. Its heavy metal accumulation and translocation, physiological and metabolic products were analysed under different growth concentrations of Cu (0–2400 mg.kg−1) stress. Our results indicated that roots strongly accumulated Cu2+. Oxidative stress defence mechanisms were activated in leaves under Cu treatment. Higher Cu concentrations triggered higher electrolyte leakage (EL), Malondialdehyde (MDA), superoxide dismutase (SOD) and peroxidase (POD) activity, and consequently a higher capacity to scavenge oxygen radicals and maintain cellular membrane integrity. In the citrate cycle, some amino acids and sugars related to biological pathways were altered in C. argentea exposed to Cu stress. Metabolomics data revealed that C. argentea used elevated sugar content as an antioxidant to regulate reactive oxygen species (ROS). Some organic acids and amino acids were up‐regulated compared with the control, indicating that these may chelate Cu in cells to remove excess Cu2+. The up‐regulation of polyamines and some organic acids may mitigate oxidative stress. These results indicate that C. argentea could be used as a Cu‐tolerant plant in Cu mine restoration. Its Cu tolerance mechanism also provides a basis for future plant improvement or breeding for use in mine restoration.

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“…malate, citrate and oxalate; fatty acids, e.g. oleic acid and palmitoleic acid (Yusuf et al ., 2012; Ritter et al ., 2014; Nakajima et al ., 2019).…”

Section: Introductionmentioning

confidence: 99%

Analysis of physiological and metabolite response of Celosia argentea to copper stress

Wang

et al. 2021

Plant Biol J

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“…The increased production of secondary metabolites in lichen thalli due to metal stress strongly suggests that they are involved in the extracellular immobilization of toxic elements (Hauck et al, 2013;Pawlik-Skowrońska and Bačkor, 2011). On the other hand, if a decrease in production had been observed, then this fact was explained by reduced vitality of mycobiont (e.g., Gauslaa et al, 2016;Nakajima et al, 2019). The content of secondary metabolites in C. rei was not related to any of factors associated with heavy metal accumulation and remained at a relatively stable level in all samples regardless of the sampling site.…”

Section: Secondary Metabolitesmentioning

confidence: 99%

Towards understanding the effect of heavy metals on mycobiont physiological condition in a widespread metal-tolerant lichen Cladonia rei

et al. 2022

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“…In contrast, lichens on metal (Fe)-rich rocks or slags were shown to be mostly devoid of secondary metabolites or containing secondary metabolites which decrease Me(Fe) 2+ adsorption, explaining their tolerance of excessive concentrations [39]. Lichens may even reduce the relative concentrations of secondary metabolites in response to the increase in metal concentration [44]. Moreover, lichen communities growing in metal-rich ultramafic alpine areas may exhibit differences in terms of secondary metabolite production compared to those of adjacent non-ultramafic areas (e.g., lower frequency of species with depsidones) [45].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Edaphic and Climatic Factors on Secondary Lichen Chemistry: A Case Study Using Saxicolous Lichens

et al. 2019

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Diversity of secondary lichen metabolites and their relationship to substrate and environmental parameters were studied in saxicolous lichens in the Middle and South Urals of Russia. Atranorin, usnic acid, gyrophoric acid, zeorin, norstictic acid, antraquinones and stictic acid were found in 73, 42, 41, 37, 36, 35 and 32 species, respectively, of 543 taxa collected. One hundred and ninety six species (i.e., 36% of total species documented) contained no secondary metabolites. Spectra of secondary metabolites of crustose lichens varied on different rock types, while in fruticose and foliose groups only those species without lichen acids were dependent on the substrate type. In Canonical Correspondence Analysis, secondary lichen metabolites were subdivided into groups depending on the concentration of Ca and metals in the substrate. Gyrophoric, lobaric, psoromic, rhizocarpic and stictic acids were common in crustose lichens in metal-poor habitats; species with antraquinones and lichens without any secondary metabolites were most abundant on limestone (alkalic and metal-poor), while other common lichen metabolites had no to minimal dependence on the chemistry of the substrate. The two additional abiotic factors affecting the composition of secondary metabolites were the maximum temperature of the warmest month and elevation. Our results suggest a range of possible relationships exist among lichen acids, rocks and climatic parameters. Furthermore, the same metabolite may affect both accumulation of metals and stress tolerance under unfavorable conditions.

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Response of secondary metabolites to Cu in the Cu-hyperaccumulator lichen Stereocaulon japonicum

Cited by 13 publications

References 28 publications

Analysis of physiological and metabolite response of Celosia argentea to copper stress

Analysis of physiological and metabolite response of Celosia argentea to copper stress

Towards understanding the effect of heavy metals on mycobiont physiological condition in a widespread metal-tolerant lichen Cladonia rei

The Effects of Edaphic and Climatic Factors on Secondary Lichen Chemistry: A Case Study Using Saxicolous Lichens

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