Effect of abiotic stress on photosynthesis and respiration in Chlamydomonas reinhardtii

Vega, José M.; Garbayo, Inés; Domínguez, María José Tacoronte; Vigara, Javier

doi:10.1016/j.enzmictec.2005.10.050

Cited by 44 publications

(37 citation statements)

References 25 publications

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“…Increasing salt concentration in the soil leads to water loss, which in turn results in closure of stomata via the effect of abscisic acid (Mahajan and Tuteja 2005). Excessive NaCl also has both direct and indirect negative effects on photosynthesis (Shama and Hall 1991;Lawlor and Cornic 2002;Vega et al 2006). Limited availability of CO 2 as a result of stomatal closure leads to imbalance between photosynthetic electron transport and carbon assimilation reactions (Chaves et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Proteomic analysis of salinity-stressed Chlamydomonas reinhardtii revealed differential suppression and induction of a large number of important housekeeping proteins

Yokthongwattana

Mahong

Roytrakul

et al. 2012

Planta

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Salinity stress is one of the most common abiotic stresses that hamper plant productivity worldwide. Successful plant adaptations to salt stress require substantial changes in cellular protein expression. In this work, we present a 2-DE-based proteomic analysis of a model unicellular green alga, Chlamydomonas reinhardtii, subjected to 300 mM NaCl for 2 h. Results showed that, in addition to the protein spots that showed partial up- or down-regulation patterns, a number of proteins were exclusively present in the proteome of the control cells, but were absent from the salinity-stressed samples. Conversely, a large number of proteins exclusively appeared in the proteome of the salinity-stressed samples. Of those exclusive proteins, we could successfully identify, via LC-MS/MS, 18 spots uniquely present in the control cells and 99 spots specific to NaCl-treated cells. Interestingly, among the salt-exclusive protein spots, we identified several important housekeeping proteins like molecular chaperones and proteins of the translation machinery, suggesting that they may originate from post-translational modifications rather than from de novo biosynthesis. The possible role and the salt-specific modification of these proteins by salinity stress are discussed.

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Section: Introductionmentioning

confidence: 99%

Proteomic analysis of salinity-stressed Chlamydomonas reinhardtii revealed differential suppression and induction of a large number of important housekeeping proteins

Yokthongwattana

Mahong

Roytrakul

et al. 2012

Planta

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“…Pollutant metals disturb the oxidative balance and thus an important palliative measure is the induction of antioxidants [52]. The induction of antioxidant compounds and enzymes is of great importance to increase tolerance of plants against different kinds of stress [53].…”

Section: Discussionmentioning

confidence: 99%

Variations of Plant Macronutrients and Secondary Metabolites Content in Response to Radionuclides Accumulation

Hegazy¹,

Sl²,

Hf³

et al. 2013

J Bioremed Biodeg

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Current knowledge on the basic radionuclide tolerance indicates that plants may develop mechanisms preventing the damaging effects of radionuclide stress. The radionuclides content was determined in the Mediterranean coastal black sand soil and in the edible portions of the four food crop plant species, viz., Eruca sativa, Lycopersicon esculentum, Pasidium guajava and Mangifera indica. Biochemical and nutritional constituents were assessed to elucidate the possible effect of radionuclides on the edible portions of the plants. The ability of the four study plant species to accumulate Uranium and Thorium in their edible portions from the coastal black sand soil is higher than that absorbed from the inland agricultural soils. The nutritional constituents were affected by the high concentrations of Uranium and Thorium in the plant tissues. The total protein, moisture content, total phenolic compounds, total chlorophyll, total carotenoids, β-Carotene and Lycopene were positively correlated with Uranium and Thorium concentrations in the plant tissues, while the mineral content, vitamin C and total flavonoids were suppressed by high concentrations of Uranium and Thorium in the plant tissues. The fluctuations in the biochemical or nutritional constituents of the plant edible portions are considered an important defense mechanism to control the redox state of the cells accumulating radionuclides with high levels. Journal of Bior emediation & Biodegradation

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“…changes in water osmolarity) and temperature stress can be highly stressful and may finally trigger a programmed cell death (PCD) (Kobayashi et al, 1997;Lesser, 1997;Takagi et al, 2006;Zuppini et al, 2010). In these species the effects of both types of stress have been widely studied, and have been reported to provoke photosynthetic alterations, ROS production and ultimately cell death (Liu et al 2007;Lesser, 1996;Mishra & Jha, 2011;Vega et al, 2006). Recently, the red species Porphyra columbina Montagne (Plantae, Rhodophyta) was recognised among the macroalgae that are highly tolerant to natural desiccation stress.…”

Section: Introductionmentioning

confidence: 99%

Proteomics in Seaweeds: Ecological Interpretations

Contreras–Porcia¹,

López-Cristoffanini²

2012

Gel Electrophoresis - Advanced Techniques

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Effect of abiotic stress on photosynthesis and respiration in Chlamydomonas reinhardtii

Cited by 44 publications

References 25 publications

Proteomic analysis of salinity-stressed Chlamydomonas reinhardtii revealed differential suppression and induction of a large number of important housekeeping proteins

Proteomic analysis of salinity-stressed Chlamydomonas reinhardtii revealed differential suppression and induction of a large number of important housekeeping proteins

Variations of Plant Macronutrients and Secondary Metabolites Content in Response to Radionuclides Accumulation

Proteomics in Seaweeds: Ecological Interpretations

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