Hochschulschrift

Characterization of inducible galactolipid biosynthesis mutants in tobacco

Zusammenfassung: Chloroplast membranes have a unique composition characterized by very high contents of the galactolipids, MGDG and DGDG. Many studies on constitutive, galactolipid-deficient mutants revealed conflicting results about potential functions of galactolipids in photosynthetic membranes. Likely, this was caused by pleiotropic effects such as starvation artefacts because of impaired photosynthesis from early developmental stages of the plants onward. Therefore, an ethanol inducible RNAi-approach has been taken to suppress two key enzymes of galactolipid biosynthesis in the chloroplast, MGD1 and DGD1. Plants were allowed to develop fully functional source leaves prior to induction, which then could support plant growth. Then, after the ethanol induction, both young and mature leaves were investigated over time. Our studies revealed similar changes in both MGDG- and DGDG-deficient lines, however young and mature leaves of transgenic lines showed a different response to galactolipid deficiency. While no changes of photosynthetic parameters and…

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Maße
30 cm
Umfang
116 Blätter
Sprache
Englisch
Anmerkungen
Illustrationen, Diagramme
Universität Potsdam, Dissertation, 2017

Klassifikation
Biowissenschaften, Biologie

Ereignis
Veröffentlichung
(wo)
Potsdam
(wann)
2017
Urheber

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11.06.2025, 14:26 MESZ

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Objekttyp

  • Hochschulschrift

Beteiligte

Entstanden

  • 2017

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