Umfang:
xi, 127 Seiten
,
Illustrationen, Diagramme
Inhalt:
All plant cells are surrounded by a dynamic, carbohydrate-rich extracellular matrix known as the cell wall. Nutrient availability affects cell wall composition via uncharacterized regulatory mechanisms, and cellulose deficient mutants develop a hypersensitive root response to growth on high concentrations of nitrate. Since cell walls account for the bulk of plant biomass, it is important to understand how nutrients regulate cell walls. This could provide important knowledge for directing fertilizer treatments and engineering plants with higher nutrient use efficiency. The direct effect of nitrate on cell wall synthesis was investigated through growth assays on varying concentrations of nitrate, measuring cellulose content of roots and shoots, and assessing cellulose synthase activity (CESA) using live cell imaging with spinning disk confocal microscopy. A forward genetic screen was developed to isolate mutants impaired in nutrient-mediated cell wall regulation, revealing that cellulose biosynthesis inhibitor (CBI) activity is modulated by nutrient availability. [...]
Anmerkung:
Dissertation University of Potsdam 2022
,
Dissertation The University of Melbourne 2022
Sprache:
Englisch
Schlagwort(e):
Zellwandbildung
;
Nährstoffversorgung
;
Hochschulschrift
Mehr zum Autor:
Willmitzer, Lothar 1952-