Details
| Original language | English |
|---|---|
| Pages (from-to) | 173-182 |
| Number of pages | 10 |
| Journal | Tropical Ecology |
| Volume | 45 |
| Issue number | 1 SPEC. ISS. |
| Publication status | Published - 1 Jun 2004 |
Abstract
Our aim of research is to investigate the role of sulfolipids and enzymes involved in sulfur metabolism in salt tolerance. Sulfolipids occur in the plastid membrane and are probably necessary for proper function of the plastidic ATPase. Two halophytes were chosen for a detailed analysis: Aster tripolium L. and Sesuvium portulacastrum L. Plants were watered for up to 10 days with solutions containing different NaCl concentrations. Plant extracts were analysed for sulfolipid contents and enzyme activity. The sulfolipid contents analysed by thin layer chromatography were always enhanced in Aster leaves when watered with NaCl solutions whereas in Sesuvium leaves the sulfolipid contents were only slightly increased at higher salt concentrations. After salt treatment for 10 days the enzymatic formation of L-cysteine and of β-cyanoalanine was drastically reduced in Aster leaves and roots. In diverse species the sulfolipid synthesis is expressed in different ways following different salt tolerance mechanisms.
Keywords
- β-cyanoalanine synthase, Conductivity, Enzyme activity, O-acetyl-L-serine(thiol)lyase, Sulfolipid, Thin layer chromatography
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Ecology, Evolution, Behavior and Systematics
- Environmental Science(all)
- Ecology
- Agricultural and Biological Sciences(all)
- Plant Science
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In: Tropical Ecology, Vol. 45, No. 1 SPEC. ISS., 01.06.2004, p. 173-182.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Connecting sulfur metabolism and salt tolerance mechanisms in the halophytes Aster tripolium and Sesuvium portulacastrum
AU - Balasubramanian, Ramani
AU - Papenbrock, Jutta
AU - Schmidt, Ahlert
PY - 2004/6/1
Y1 - 2004/6/1
N2 - Our aim of research is to investigate the role of sulfolipids and enzymes involved in sulfur metabolism in salt tolerance. Sulfolipids occur in the plastid membrane and are probably necessary for proper function of the plastidic ATPase. Two halophytes were chosen for a detailed analysis: Aster tripolium L. and Sesuvium portulacastrum L. Plants were watered for up to 10 days with solutions containing different NaCl concentrations. Plant extracts were analysed for sulfolipid contents and enzyme activity. The sulfolipid contents analysed by thin layer chromatography were always enhanced in Aster leaves when watered with NaCl solutions whereas in Sesuvium leaves the sulfolipid contents were only slightly increased at higher salt concentrations. After salt treatment for 10 days the enzymatic formation of L-cysteine and of β-cyanoalanine was drastically reduced in Aster leaves and roots. In diverse species the sulfolipid synthesis is expressed in different ways following different salt tolerance mechanisms.
AB - Our aim of research is to investigate the role of sulfolipids and enzymes involved in sulfur metabolism in salt tolerance. Sulfolipids occur in the plastid membrane and are probably necessary for proper function of the plastidic ATPase. Two halophytes were chosen for a detailed analysis: Aster tripolium L. and Sesuvium portulacastrum L. Plants were watered for up to 10 days with solutions containing different NaCl concentrations. Plant extracts were analysed for sulfolipid contents and enzyme activity. The sulfolipid contents analysed by thin layer chromatography were always enhanced in Aster leaves when watered with NaCl solutions whereas in Sesuvium leaves the sulfolipid contents were only slightly increased at higher salt concentrations. After salt treatment for 10 days the enzymatic formation of L-cysteine and of β-cyanoalanine was drastically reduced in Aster leaves and roots. In diverse species the sulfolipid synthesis is expressed in different ways following different salt tolerance mechanisms.
KW - β-cyanoalanine synthase
KW - Conductivity
KW - Enzyme activity
KW - O-acetyl-L-serine(thiol)lyase
KW - Sulfolipid
KW - Thin layer chromatography
UR - http://www.scopus.com/inward/record.url?scp=8844245782&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:8844245782
VL - 45
SP - 173
EP - 182
JO - Tropical Ecology
JF - Tropical Ecology
SN - 0564-3295
IS - 1 SPEC. ISS.
ER -