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A SQUAMOSA MADS Box Gene Involved in the Regulation of Anthocyanin Accumulation in Bilberry Fruits1[W][OA]
It is concluded that VmTDR4 plays an important role in the accumulation of anthocyanins during normal ripening in bilberry, probably through direct or indirect control of transcription factors belonging to the R2R3 MYB family.
The interaction between the intracellular endophytic bacterium, Methylobacterium extorquens DSM13060, and Scots pine (Pinus sylvestris L.)
- J. Koskimäki
This study found Methylobacterium extorquens colonized pine seedlings similarly to stem-colonizing rhizobia of other plants, and shows meristematic endophytes are important in growth and development of their hosts.
Flavonoid biosynthesis and degradation play a role in early defence responses of bilberry (Vaccinium myrtillus) against biotic stress
The defence response of bilberry was faster against the endophyte than the pathogen and quantity of insoluble proanthocyanidins was the highest in control plants, suggesting that they might act as storage compounds and become activated by degradation upon infection.
Fungal Dysbiosis and Intestinal Inflammation in Children With Beta-Cell Autoimmunity
It is concluded that the fungal and bacterial dysbiosis, and intestinal inflammation are associated with the development of T1D in children with beta-cell autoimmunity.
Role of origin and endophyte infection in browning of bud-derived tissue cultures of Scots pine (Pinus sylvestris L.)
- A. Pirttilä, O. Podolich, J. Koskimäki, E. Hohtola, A. Hohtola
- BiologyPlant Cell, Tissue and Organ Culture
- 4 July 2008
The endophyte species composition and plant genotype together with tissue culture conditions are the key factors for gaining plant tissue cultures with high regeneration capacity.
Interaction with ectomycorrhizal fungi and endophytic Methylobacterium affects nutrient uptake and growth of pine seedlings in vitro.
The results show that M. extorquens is able to improve the growth of seedlings at the same level as the ECM fungi SV and PT do, and interaction between endophyte and ECM fungus is species dependent, leading to increased or decreased nutrient content and growth of pine seedlings.
The Intracellular Scots Pine Shoot Symbiont Methylobacterium extorquens DSM13060 Aggregates around the Host Nucleus and Encodes Eukaryote-Like Proteins
- J. Koskimäki, A. Pirttilä, Emmi-Leena Ihantola, Outi Halonen, A. C. Frank
- Biology, Environmental SciencemBio
- 24 March 2015
A novel endophytic niche is described inside cells of the dividing shoot tissues of a pine and stimulates seedling growth without producing cytokinin, auxin, or other plant hormones commonly synthesized by plant-associated bacteria.
The protective role of PHB and its degradation products against stress situations in bacteria.
- M. Müller-Santos, J. Koskimäki, L. Alves, E. D. de Souza, D. Jendrossek, A. Pirttilä
- BiologyFEMS microbiology reviews
- 5 May 2021
The current knowledge on PHB physiology is reviewed together with a summary of recent findings on novel functions of PHB in stress resistance, and potential applications of these new functions are presented.
Methyl-esterified 3-hydroxybutyrate oligomers protect bacteria from hydroxyl radicals.
It is shown that methyl-esterified dimers and trimers of 3-hydroxybutyrate (ME-3HB), produced by bacteria capable of polyhydroxy butyrate biosynthesis, have 3-fold greater hydroxyl radical-scavenging activity than glutathione and 11-fold higher activity than vitamin C or the monomer 3-Hydroxybutyric acid.
Localization of strawberry (Fragaria x ananassa) and Methylobacterium extorquens genes of strawberry flavor biosynthesis in strawberry tissue by in situ hybridization.