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1

The influence of heavy metal ions on light-dependent proton uptake by thylakoids

100%
Polishchuk, Podorvanov V. V., Zolotareva E. K.
Acta Physiologiae Plantarum
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2007
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tom 29
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nr 1 Suppl.
2

Some aspects of heavy metals toxicity towards photosynthetic apparatus-direct and indirect effects on light and dark reactions

86%
Krupa Z., Baszynski T.
Acta Physiologiae Plantarum
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1995
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tom 17
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nr 2
3

Influence of some herbicides with adjuvant Atpolan on photosynthetic electron transport in leaves of Chenopodium album L. and Beta vulgaris L. estimated by means of modulated chlorophyll fluorescence

58%
Skorska E., Swarcewicz M., Wrzesinska E.
Zeszyty Problemowe Postępów Nauk Rolniczych
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2008
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tom 524
Among the investigated four herbicides at the concentration of 2.5 µmol·dm⁻³, linuron (included in the specimen Afalon 450 SC) highly decreased the electron transport rate (ETR) in the leaves of sugar beet and Beta vulgaris L.; the additional application of Atpolan at the concentration of 0.05% (v/v) oncreased the effect. Phen- medipham (in Betanal Elite 274 EC) and chloridazon (in Burex 80 WP), applied to sugar beat crops did not change the ETR value in leaves of this species, also in the mixture with Atpolan, while the activity of this specimen was very strong in Cheno- podium album L. The activity of the adjuvant Atpolan was more expressed in a mixture with chloridazon (in Burex 80 WP) on the weed leaves. Both studied plant species showed a similar high tolerance to metamitron (Buramet 70 WG), also in the mixture with the adjuvant Atpolan.
4

Differences in hydrogenase and APS-reductase activity between Desulfovibrio desulfuricans strains growing on sulphate or nitrate

58%
Dzierzewicz Z., Cwalina B., Chodurek E., Bulas L.
Acta Biologica Cracoviensia. Series Botanica
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1997
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tom 39
The study compares growth rates and hydrogenase and APS-reductase activity in crude cell extracts obtained from eight wild strains of dissimilatory sulphate-reducing bacteria of the Desulfovibrio desulfuricans species, growing on sulphate or nitrate as sole energy source. The obtained results indicated that the investigated bacterial strains could utilize nitrate as an alternative terminal electron acceptor. Nitrate respiration abilities differed among the investigated bacterial populations. Some nitrate-utilizing cultures grew more rapidly than sulphate-utilizing ones, whereas other strains gave identical or inconsiderably lower cell density. This was true also when hydrogenase activity was analyzed. This enzyme-specific activity was generally almost directly proportional to the specific growth rate determined for strains cultured on sulphate or nitrate, respectively. The specific activity of APS-reductase indicated a large (10-20-fold) decrease in crude cell extracts obtained from bacteria growing in the presence of nitrate as compared to sulphate-utilizing ones.
5

Redox changes in normal and neoplastic cells during the cell cycle I. Bioreduction of nitroxides by CHO cells with different mitotic activity

58%
Panz T.
Current Topics in Biophysics
|
1994
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tom 18
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nr 2
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