Isolation of putative type 2 metallothionein encoding sequences and spatial expression pattern in the seagrass Posidonia oceanica

Cozza, Radiana; Pangaro, T.; Maestrini, P; Giordani, Tommaso; Natali, Lucia; Cavallini, Andrea

doi:10.1016/j.aquabot.2006.06.010

Cited by 22 publications

(14 citation statements)

References 43 publications

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“…To better understand the functional role of the two MT subgroups one gene representative for each group was used for in situ hybridization to discover spatial expression of the plant. Interestingly, the members of these two MT subgroups showed differences in their histological expression, with Pomt2b associated with the proliferative tissues whereas Pomt2f was associated with the lignified or suberized cell wall [93].…”

Section: Peptides and Proteins Involved In Metalmentioning

confidence: 99%

“…Higher Cu 2+ concentration (10 μmol) treatment showed higher MT transcript accumulation than low Cu 2+ concentration (1 μmol). Based on these results Cozza et al [93] continued to carry out the studies in more detail. Nine MT-like sequences from Cu or Cd treated Posidonia oceanica were isolated by RT-PCR.…”

Section: Peptides and Proteins Involved In Metalmentioning

confidence: 99%

“…However, when all criteria are not fulfilled often proteins are called MT-like proteins. There are only a few papers reporting on the metal-binding mechanisms of seagrasses [92,93]. Three genomic sequences putatively encoding MTs were isolated from Posidonia oceanica [92], namely, Pomt2a, Pomt2b and Pomt2c that showed high similarities to putative plants MTs.…”

Section: Peptides and Proteins Involved In Metalmentioning

confidence: 99%

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Highlights in Seagrasses’ Phylogeny, Physiology, and Metabolism: What Makes Them Special?

Papenbrock

2012

ISRN Botany

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The marine seagrasses form an ecological and therefore paraphyletic group of marine hydrophilus angiosperms which evolved three to four times from land plants towards an aquatic and marine existence. Their taxonomy is not yet solved on the species level and below due to their reduced morphology. So far also molecular data did not completely solve the phylogenetic relationships. Thus, this group challenges a new definition for what a species is. Also their physiology is not well understood due to difficult experimental in situ and in vitro conditions. There remain several open questions concerning how seagrasses adapted secondarily to the marine environment. Here probably exciting adaptation solutions will be detected. Physiological adaptations seem to be more important than morphological ones. Seagrasses contain several compounds in their secondary metabolism in which they differ from terrestrial plants and also not known from other taxonomic groups. Some of these compounds might be of interest for commercial purposes. Therefore their metabolite contents constitute another treasure of the ocean. This paper gives an introduction into some of the most interesting aspects from phylogenetical, physiological, and metabolic points of view.

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Section: Peptides and Proteins Involved In Metalmentioning

confidence: 99%

Section: Peptides and Proteins Involved In Metalmentioning

confidence: 99%

Section: Peptides and Proteins Involved In Metalmentioning

confidence: 99%

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Highlights in Seagrasses’ Phylogeny, Physiology, and Metabolism: What Makes Them Special?

Papenbrock

2012

ISRN Botany

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“…Moreover, P. oceanica contains two type of metallothioneins (MTs) which are a group of cysteine-rich proteins. These proteins have the capacity to bind heavy metals through the thiol groups, which are also known as sulfhydryl groups (R-SH), and amino groups (R- NH 2 ) of its cysteine residues [24,25]. Other studies have investigated the biosorption of heavy metals such as copper, lead, and chromium, and the removal of dyes from textile waters using P. oceanica biomass [21,[26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

- Anaerobic Treatment of Wastewater from Used Industrial Oil Recovery

2015

Ecological Technologies for Industrial Wastewater Management

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The use of dried and re-hydrated biomass of the seagrass Posidonia oceanica was investigated as an alternative and -lowcost biomaterial for removal of vanadium(III) and molybdenum(V) from wastewaters. Initial characterisation of this biomaterial identified carboxylic groups on the cuticle as potentially responsible for cation sorption, and confirmed the toxic-metal bioaccumulation. The combined effects on biosorption performance of equilibrium pH and metal concentrations were investigated in an ideal single-metal system and in more real-life multicomponent systems. There were either with one metal (vanadium or molybdenum) and sodium nitrate, as representative of high ionic strength systems, or with the two metals (vanadium and molybdenum). For the single-metal solutions, the optimum was at pH 3, where a significant proportion of vanadium was removed (ca. 70%) while there was ca. 40% adsorption of molybdenum. The data obtained from the more real-life multicomponent systems showed that biosorption of one metal was improved both by the presence of the other metal and by high ionic strength, suggesting a synergistic effect on biosorption rather than competition. There data ware used for the development of a simple multi-metal equilibrium model based on the noncompetitive Langmuir approach, which was successfully fitted to experimental data and represents a useful support tool for the prediction of biosorption performance in such real-life systems. Overall, the results suggest that biomass of P. oceanica can be used as an efficient biosorbent for removal of vanadium(III) and molybdenum(V) from aqueous solutions. This process thus offers an eco-compatible solution for the reuse of the waste material of leaves that accumulate on the beach due to both human activities and to storms at sea.

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“…Evidências indicam que as metalotioneínas possuem um papel importante na homeostasia de metais essenciais, como zinco e cobre, estando provavelmente associadas com transporte de metais (COZZA et al, 2006). No entanto, alguns trabalhos demonstraram a indução das metalotioneínas em resposta a estresse biótico e abiótico.…”

Section: Em Recente Trabalho Desenvolvido No Laboratório De Melhorameunclassified

Caracterização de promotores de expressão especifica de cana-de-açucar (Saccharum ssp.) em sistema modelo Micro-Tom (Solanum lycopersicum L)

Ferrari¹

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Isolation of putative type 2 metallothionein encoding sequences and spatial expression pattern in the seagrass Posidonia oceanica

Cited by 22 publications

References 43 publications

Highlights in Seagrasses’ Phylogeny, Physiology, and Metabolism: What Makes Them Special?

Highlights in Seagrasses’ Phylogeny, Physiology, and Metabolism: What Makes Them Special?

- Anaerobic Treatment of Wastewater from Used Industrial Oil Recovery

Caracterização de promotores de expressão especifica de cana-de-açucar (Saccharum ssp.) em sistema modelo Micro-Tom (Solanum lycopersicum L)

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