التفاصيل البيبلوغرافية
| العنوان: |
Mutations in the Second Alternative Oxidase Gene: A New Approach to Group Aspergillus niger Strains |
| المؤلفون: |
Michel Flipphi, Alexandra Márton, Vivien Bíró, Norbert Ág, Erzsébet Sándor, Erzsébet Fekete, Levente Karaffa |
| المصدر: |
Journal of Fungi; Volume 9; Issue 5; Pages: 570 |
| بيانات النشر: |
Multidisciplinary Digital Publishing Institute |
| سنة النشر: |
2023 |
| المجموعة: |
MDPI Open Access Publishing |
| مصطلحات موضوعية: |
ubiquinol:oxygen oxidoreductase encoding gene, Aspergillus niger sensu stricto complex, alleles, chromosomal deletion, retrotransposon insertion, point mutation, frameshift mutation, nonsense mutation, molecular taxonomy |
| جغرافية الموضوع: |
agris |
| الوصف: |
Alternative oxidase is a terminal oxidase in the branched mitochondrial electron transport chain of most fungi including Aspergillus niger (subgenus Circumdati, section Nigri). A second, paralogous aox gene (aoxB) is extant in some A. niger isolates but also present in two divergent species of the subgenus Nidulantes—A. calidoustus and A. implicatus—as well as in Penicillium swiecickii. Black aspergilli are cosmopolitan opportunistic fungi that can cause diverse mycoses and acute aspergillosis in immunocompromised individuals. Amongst the approximately 75 genome-sequenced A. niger strains, aoxB features considerable sequence variation. Five mutations were identified that rationally affect transcription or function or terminally modify the gene product. One mutant allele that occurs in CBS 513.88 and A. niger neotype strain CBS 554.65 involves a chromosomal deletion that removes exon 1 and intron 1 from aoxB. Another aoxB allele results from retrotransposon integration. Three other alleles result from point mutations: a missense mutation of the start codon, a frameshift, and a nonsense mutation. A. niger strain ATCC 1015 has a full-length aoxB gene. The A. niger sensu stricto complex can thus be subdivided into six taxa according to extant aoxB allele, which may facilitate rapid and accurate identification of individual species |
| نوع الوثيقة: |
text |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| العلاقة: |
Fungi in Agriculture and Biotechnology; https://dx.doi.org/10.3390/jof9050570Test |
| DOI: |
10.3390/jof9050570 |
| الإتاحة: |
https://doi.org/10.3390/jof9050570Test |
| حقوق: |
https://creativecommons.org/licenses/by/4.0Test/ |
| رقم الانضمام: |
edsbas.B2322A5F |
| قاعدة البيانات: |
BASE |
