Chlorophyll fluorescence in the leaves of Tradescantia species of different ecological groups: Induction events at different intensities of actinic light

Ptushenko, Vasily V.; Ptushenko, Elena A.; Samoilova, Olga P.; Тихонов, А. Н.

doi:10.1016/j.biosystems.2013.08.001

Cited by 31 publications

(14 citation statements)

References 104 publications

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“…This work is associated with our previous works on instrumental and biochemical studies of Tradescantia leaves of two contrast ecotypes ( T. fluminensis , shade‐loving, and T. sillamontana , sun‐resistant species) acclimated to low‐light (LL) or high‐light (HL) conditions. The LL and HL specimens differed in relative amounts of photosynthetic reaction centres and light‐harvesting complexes (per fresh weight) .…”

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confidence: 96%

Photo‐reducible plastoquinone pools in chloroplasts of Tradescentia plants acclimated to high and low light

Suslichenko

Тихонов

2019

FEBS Letters

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In photosynthetic systems of oxygenic type, plastoquinone (PQ) molecules are reduced by photosystem II (PSII). The turnover of PQ determines the rate of PSII operation. PQ molecules are present in surplus with respect to PSII. In this work, using the pulse amplitude modulation‐fluorometry technique, we quantified photo‐reducible PQ pools in chloroplasts of two contrasting ecotypes of Tradescantia, acclimated either to low light (~ 100 μmol photons·m−2·s−1, LL) or to high light (~ 1000 μmol photons·m−2·s−1, HL). The LL‐grown plants are characterized by higher capacity of rapidly reducible PQ pool ([PQ]0/[PSII] ≈ 8) as compared to HL‐grown plants of both species ([PQ]0/[PSII] ≈ 4). The elevated content of PQ in LL plants favours photosynthetic electron flow at low‐solar irradiance.

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confidence: 96%

Photo‐reducible plastoquinone pools in chloroplasts of Tradescentia plants acclimated to high and low light

Suslichenko

Тихонов

2019

FEBS Letters

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“…1A), which implies that, even at low growth irradiances, acclimation did not maximize light use efficiency. In a lightsaturated leaf, F PSII is limited by electron transport or metabolic factors that generally can differ greatly between species (Seemann, 1989;Murchie and Horton, 1997;Valladares et al, 1997) and within species (Balaguer et al, 2001;Walters et al, 2003;Ptushenko et al, 2013).…”

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confidence: 99%

Natural Genetic Variation for Acclimation of Photosynthetic Light Use Efficiency to Growth Irradiance in Arabidopsis

2015

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“…These components provide relatively persistent ‘memory’ (at least at an hour timescale) of previous high‐light acclimation. This long‐lasting pre‐acclimation effect is also typical for shade‐tolerant rather than for high‐light‐adapted species (Ptushenko et al ).…”

Section: Minute‐to‐hour Timescale Of the Psa Photoacclimationmentioning

confidence: 86%

“…In T. fluminensis , a shade‐tolerant inhabitant of rainforests, all regulatory events and states (e.g. the energized state of thylakoid membranes and associated energy‐dependent quenching of chlorophyll excited states, qE) are characterized by a slower induction and relaxation compared with high‐light‐demanding T. sillamontana (Ptushenko et al ). In T. fluminensis , the long‐term (week timescale) acclimation to a high‐irradiance accelerates reaching the stationary ET, dark relaxation of the PSA enzyme activity and/or redox state of the ET cofactors (Mishanin et al ) suggesting that acclimation to a high irradiance enhances the tolerance of the photosynthetic machinery to abrupt fluctuations of irradiance.…”

Section: Short‐term Regulation Of the Psamentioning

confidence: 99%

Tradescantia‐based models: a powerful looking glass for investigation of photoacclimation and photoadaptation in plants

Ptushenko

2019

Physiologia Plantarum

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Here, we summarize diverse evidence from species that belong to the genus Tradescantia, which we propose as handy and versatile models for studies of the ecology of photosynthesis and the mechanisms of photoacclimation in higher plants. A valuable feature of this genus is the amazingly broad range of ecological niches occupied by its species: from shady understory of tropical rainforest to deserts and semideserts. The former habitats demand shade tolerance (e.g. that featured by Tradescantia fluminensis), whereas the latter requires succulence and/or high light stress tolerance (evident in e.g. Tradescantia navicularis). At the same time, the acclimative traits of Tradescantia species seem quite moderate at first glance. Certainly, their basic principles of acclimation seem to differ in some aspects from the ones typical for most of other higher plants. This review presents a systematic analysis of irradiance responses of Tradescantia species studied on different timescales. The specifics of Tradescantia responses to irradiance make the plants of this genus a ‘multitool’ for studies in this field. Similarity of irradiance acclimation patterns is a characteristic feature in the ecologically contrasting Tradescantia species, which may inspire further insights into physiology and evolution of plants.

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Chlorophyll fluorescence in the leaves of Tradescantia species of different ecological groups: Induction events at different intensities of actinic light

Cited by 31 publications

References 104 publications

Photo‐reducible plastoquinone pools in chloroplasts of Tradescentia plants acclimated to high and low light

Photo‐reducible plastoquinone pools in chloroplasts of Tradescentia plants acclimated to high and low light

Natural Genetic Variation for Acclimation of Photosynthetic Light Use Efficiency to Growth Irradiance in Arabidopsis

Tradescantia‐based models: a powerful looking glass for investigation of photoacclimation and photoadaptation in plants

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