Wyniki wyszukiwania

1

Phosphorylation of sucrose synthase from maize seedlings

100%

Lindblom S., Ek P., Muszynska G., Ek B., Szczegielniak J., Engstrom L.

Acta Biochimica Polonica

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1997

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tom 44

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nr 4

Two isoforms of sucrose synthase (SS1 and SS2) from maize (Zea mays, var. Mona) seedlings co-purified with a calcium and phospholipid dependent protein kinase. The enzymatic preparation obtained gave a positive reaction with the antibody against mammalian protein kinase C. Maize sucrose synthase was phosphorylated by the endogenous protein kinase. Also, mammalian protein kinases (protein kinase C and protein kinase A) were able to phosphorylate the 86 kDa subunit of sucrose synthase. When excised seedlings were fed [32P]orthophosphate, sucrose synthase was also phosphorylated. Microsequencing of in vivo labelled enzyme has shown phosphorylation of Ser-15 in SS2. The present work provides evidence that maize sucrose synthase is the physiological substrate of the endogenous calcium and phospholipid dependent protein kinase(s).

2

The effect of sulphite on chlorophyll fluorescence and sucrose metabolism in poplar leaves

100%

Lorenc-Plucinska G., Szadel A., Plucinski A., Matysiak R.

Acta Physiologiae Plantarum

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2002

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tom 24

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nr 2

3

Activities of sucrolytic enzymes in developing pods of lentil genotypes differing in seed size

80%

Chopra J., Kaur N., Gupta A. K.

Acta Physiologiae Plantarum

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2005

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tom 27

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nr 1

The activities of sucrolytic enzymes viz. sucrose synthase and invertases were compared in developing pods of two genotypes of lentil differing in seed weight. Biomass accumulation of both the podwall and seed of ‘large’ genotype was higher during development as compared to the ‘small’ genotype. High activity of acid invertase together with prolonged activity of alkaline invertase in podwall of ‘large’ genotype may lead to longer cell division phase resulting in its larger size and biomass. Greater biomass of podwall could be responsible for providing more reserves for the developing seed hence determining its size. Higher alkaline invertase activity in ‘large’ seed from 15-20 DAF can be correlated to the sustained sucrolytic conditions for producing more cells required for its larger size. In creased levels of sucrose synthase in ‘large’ seed especially during maturation phase suggest the role of this enzyme in enhancing the seed sink strength.

4

The influence of chilling on photosynthesis and activities of some enzymes of sucrose metabolism in Lycopersicon esculentum Mill.

80%

Artuso A., Guidi L., Soldatini G. F., Pardossi A., Tognoni F.

Acta Physiologiae Plantarum

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2000

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tom 22

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nr 2

5

Changes in the activities of carbon metabolizing enzymes with pod development in lentil [Lens culinaris L.]

80%

Chopra J., Kaur N., Gupta A. K.

Acta Physiologiae Plantarum

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2003

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tom 25

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nr 2

Ograniczanie wyników

4 Acta Physiologiae Plantarum

1 Acta Biochimica Polonica

2 Chopra J.

2 Gupta A. K.

2 Kaur N.

1 Artuso A.

1 Ek B.

1 Ek P.

1 Engstrom L.

1 Guidi L.

1 Lindblom S.

1 Lorenc-Plucinska G.

1 Matysiak R.

1 Muszynska G.

1 Pardossi A.

1 Plucinski A.

1 Soldatini G. F.

1 Szadel A.

1 Szczegielniak J.

1 Tognoni F.

1 2005

1 2003

1 2002

1 2000

1 1997

Phosphorylation of sucrose synthase from maize seedlings

The effect of sulphite on chlorophyll fluorescence and sucrose metabolism in poplar leaves

Activities of sucrolytic enzymes in developing pods of lentil genotypes differing in seed size

The influence of chilling on photosynthesis and activities of some enzymes of sucrose metabolism in Lycopersicon esculentum Mill.

Changes in the activities of carbon metabolizing enzymes with pod development in lentil [Lens culinaris L.]