التفاصيل البيبلوغرافية
| العنوان: |
Distribution of C30 carotenoid biosynthesis genes suggests habitat adaptation function in insect-adapted and nomadic Lactobacillaceae. |
| المؤلفون: |
Eilers, Tom, Legein, Marie, Temmermans, Jari, Dillen, Jelle, Vandendriessche, Ine, Sandra, Koen, Bron, Peter A., Wittouck, Stijn, Lebeer, Sarah |
| المصدر: |
Communications Biology; 12/3/2024, Vol. 7 Issue 1, p1-10, 10p |
| مصطلحات موضوعية: |
PLANT genetics, LIFE sciences, BOTANY, ECOLOGICAL resilience, LACTOBACILLACEAE, CAROTENOIDS |
| مستخلص: |
Carotenoids are membrane-bound pigments that are essential for photosynthesizing plants and algae, widely applied in food, feed and cosmetics due to their antioxidant and anti-inflammatory properties. The production of carotenoids, particularly C30 forms, has been documented in some non-photosynthetic prokaryotes. However, their function, distribution and ecology beyond photosynthesizing organisms remains understudied. In this study, we performed an eco-evolutionary analysis of terpenoid biosynthetic gene clusters in the Lactobacillaceae family, screening 4203 dereplicated genomes for terpenoid biosynthesis genes, and detected crtMN genes in 28/361 (7.7%) species across 14/34 (41.2%) genera. These genes encode key enzymes for producing the C30 carotenoid 4,4′-diaponeurosporene. crtMN genes appeared to be convergently gained within Fructilactobacillus and horizontally transferred across species and genera, including Lactiplantibacillus to Levilactobacillus. The phenotype was confirmed in 87% of the predicted crtMN gene carriers (27/31). Nomadic and insect-adapted species, particularly those isolated from vegetable fermentations, e.g., Lactiplantibacillus, and floral habitats, e.g., Fructilactobacillus, contained crtMN genes, while vertebrate-associated species, including vaginal associated species, lacked this trait. This habitat association aligned with the observations that C30 carotenoid-producing strains were more resistant to UV-stress. In summary, C30 carotenoid biosynthesis plays a role in habitat adaptation and is scattered across Lactobacillaceae in line with this habitat adaptation. Pangenome wide study suggests that C30 carotenoid biosynthesis genes in Lactobacillaceae have a role in habitat adaptation, with higher abundance in insect-adapted and nomadic species, alleviating UV-stress and supporting ecological resilience. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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