Comparative study on photosynthetic activity of chloroplasts in acid and alkaline zones of Chara corallina

Булычев, А. А.; Cherkashin, A. A.; Rubin, A. B.; Vredenberg, W.J.; Zykov, V. S.; Müller, Stefan

doi:10.1016/s0302-4598(01)00096-4

Cited by 57 publications

(35 citation statements)

References 17 publications

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“…Thus, alkaline and acid bands are alternatively formed on the surface of internodal and branchlet cells of Characeae (Spear et al 1969, Lucas and Smith 1973, Okazaki and Tokita 1988. It has been suggested that inorganic carbon is taken up at the acid band, resulting in higher photosynthetic activity at the acid band (Plieth et al 1994, Bulychev et al 2001). …”

Section: Introductionmentioning

confidence: 99%

Induction of a New Alkaline Band at a Target Position in Internodal Cells of Chara corallina

Shimmen

Yamamoto

2002

Plant and Cell Physiology

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;Characean cells develop alternating alkaline and acid bands on their surface upon illumination. However, the mechanism of band formation is not fully understood. In the present study, we succeeded in inducing a new alkaline band at an original acid band in internodal cells of Chara corallina. Chloroplasts in an acid band were locally removed by wounding the cell in the absence of the cell turgor pressure. The chloroplast-removed area was observed as a white belt in a green cylindrical internodal cell. This internodal cell developed a new alkaline band on the surface at the chloroplast-removed area. The narrower the chloroplast-removed area, the less significant the extent of OH -extrusion. This is the first success in inducing a new alkaline band at a target position in Characeae.

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Section: Introductionmentioning

confidence: 99%

Induction of a New Alkaline Band at a Target Position in Internodal Cells of Chara corallina

Shimmen

Yamamoto

2002

Plant and Cell Physiology

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“…It could strongly affect the decrease of charophytes in Lake Rogóźno, especially from lower depths. The other significant effect of DOC on the SAV in freshwater ecosystems is oxidative stress (Grigutytė et al, 2009), i.e., humic substances can influence the photosynthesis rate in aquatic plants (Bulychev et al, 2001).…”

Section: Discussionmentioning

confidence: 99%

Climate driven changes in the submerged macrophyte and phytoplankton community in a hard water lake

Ejankowski

Lenard

2015

Limnologica

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a b s t r a c tWe studied the changes in the submerged aquatic vegetation (SAV) and phytoplankton community in a hard water lake during different meteorological conditions. We hypothesized that variations in climatic conditions (precipitation and temperature) can influence the physicochemical parameters of water and, in turn, affect SAV and phytoplankton development. The investigations were performed in Lake Rogóźno (the West Polesie region, Eastern Poland) over 10 years from 2003 to 2013. The physicochemical parameters, the structure of macrophytes and the phytoplankton community in the dry (2003( -2006 and wet periods (2007-2013, WP) were analyzed. Between the dry and wet periods, the water color and the concentration of dissolved organic carbon (DOC) increased considerably, whereas water conductivity decreased. Other parameters (concentration of nutrients, water reaction and transparency) were comparable during both periods. When the precipitation and water level were low (DP), charophytes dominated the SAV and cyanobacteria dominated the phytoplankton community. After the precipitation and water level increased (WP), the charophyte population declined and the vascular plants and bryophytes dominated. Furthermore, flagellated algae belonging to the dinophytes and cryptophytes were the most numerous in the phytoplankton community. These changes in the SAV and phytoplankton were linked with the variations of physicochemical parameters determined by the total precipitation and mean air temperature in March.

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“…1a). The inverse relation between pH o and the photosynthetic activity could be ascribed to different availability of CO 2 (a Calvin cycle substrate) in the acid and alkaline regions (Plieth et al 1994;Bulychev et al 2001a). According to this view, the inorganic carbon predominantly enters the cell as CO 2 in the acid regions, whereas the alkaline zones experience deficiency of this substrate.…”

Section: Discussionmentioning

confidence: 99%

“…Measurements of local pH and chlorophyll fluorescence were performed as previously described (Bulychev et al 2001a). The alkaline and acid bands were detected with glass-insulated antimony pH-microelectrodes having a tip diameter of 10-50 lm.…”

Section: Methodsmentioning

confidence: 99%

“…Based on chlorophyll fluorescence measurements, Plieth et al (1994) found that chloroplasts in the acid and alkaline regions of Chara cells differ in their photosynthetic activities. This view was substantiated by local measurements of pH, pO 2 , and photosynthetic efficiency with microprobes and Microscopy-PAM fluorometry (Bulychev et al 2001a). A higher photochemical yield of photosystem II (PSII) in chloroplasts of acid zones, compared with alkaline zones, implies higher rates of linear electron transport in acid regions.…”

Section: Introductionmentioning

confidence: 92%

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Spatio-temporal patterns of photosystem�II activity and plasma-membrane proton flows in Chara corallina cells exposed to overall and local illumination

Булычев

Vredenberg

2003

Planta

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Pulse-amplitude modulated microfluorometry and an extracellular pH microprobe were used to examine light-induced spatial heterogeneity of photosynthetic and H(+)-transporting activities in cells of Chara corallina Klein ex Willd. Subcellular domains featuring different PSII photochemical activities were found to conform to alternate alkaline and acid zones produced near the cell surface, with peaks of PSII activity correlating with the position of acid zones. Buffers eliminated pH variations near the cell surface but did not destroy the variations in PSII photochemical yield (deltaF/Fm'). When a dark-adapted cell was exposed to actinic light, the PSII effective yield decreased within 5-15 min in the alkaline regions but rose after the initial decline in the acid regions. The light-induced decrease in deltaF/Fm' in the alkaline regions occurred prior to or synchronously with the steep rise in local pH. The kinetics of deltaF/Fm', Fm', and F observed in alkaline regions under overall illumination of Chara cells were replaced by those typical of acid regions, when the illumination area size was restricted to 1.5-2 mm. The data show that photoinduced patterns in photosynthetic activity are not predetermined by the particular structural organization of alkaline and acid cell regions but are subject to dynamic changes.

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Comparative study on photosynthetic activity of chloroplasts in acid and alkaline zones of Chara corallina

Cited by 57 publications

References 17 publications

Induction of a New Alkaline Band at a Target Position in Internodal Cells of Chara corallina

Induction of a New Alkaline Band at a Target Position in Internodal Cells of Chara corallina

Climate driven changes in the submerged macrophyte and phytoplankton community in a hard water lake

Spatio-temporal patterns of photosystem�II activity and plasma-membrane proton flows in Chara corallina cells exposed to overall and local illumination

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