WordNet

of or relating to the mental faculties
able to exist under more than one set of conditions; "a facultative parasite can exist as a parasite or a saprophyte"
granting a privilege or permission or power to do or not do something; "a facultative enactment"
not compulsory; "facultative courses in the sciences"

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1. プレジオモナス・シゲロイデス感染症 plesiomonas shigelloides infections
2. コアグラーゼ陰性ブドウ球菌の疫学、微生物学、および病因 epidemiology microbiology and pathogenesis of coagulase negative staphylococci
3. セレウス菌およびその他の非炭疽菌バシラス属 bacillus cereus and other non anthracis bacillus species
4. インフルエンザ菌の微生物学、疫学および治療 microbiology epidemiology and treatment of haemophilus influenzae
5. セラチア種による感染症 infections due to serratia species

Paraburkholderia caffeinitolerans sp. nov., a caffeine degrading species isolated from a tea plantation soil sample.

Gao ZQ1, Zhao DY1, Xu L1, Zhao RT1, Chen M1, Zhang CZ2.
Antonie van Leeuwenhoek.Antonie Van Leeuwenhoek.2016 Nov;109(11):1475-1482. Epub 2016 Aug 11.
A Gram-stain negative, facultatively anaerobic, non-sporulating, non-motile and rod-shaped bacterium, designated CF3T, was isolated from a tea plantation soil sample and its taxonomic position was determined using polyphasic taxonomy. Strain CF3T displayed optimum growth at 25 °C, pH 5.0 and in th
PMID 27515400

Bergmann's Body Size Rule Operates in Facultatively Endothermic Insects: Evidence from a Complex of Cryptic Bumblebee Species.

Scriven JJ1, Whitehorn PR1, Goulson D2, Tinsley MC1.
PloS one.PLoS One.2016 Oct 14;11(10):e0163307. doi: 10.1371/journal.pone.0163307. eCollection 2016.
According to Bergmann's rule we expect species with larger body size to inhabit locations with a cooler climate, where they may be well adapted to conserve heat and resist starvation. This rule is generally applied to endotherms. In contrast, body size in ectothermic invertebrates has been suggested
PMID 27741245

Zhang HX1, Wang K1, Xu ZX1, Chen GJ1,2, Du ZJ3,4.
Antonie van Leeuwenhoek.Antonie Van Leeuwenhoek.2016 Oct;109(10):1367-74. doi: 10.1007/s10482-016-0735-0. Epub 2016 Jul 13.
A Gram-stain positive, facultatively anaerobic, non-motile and rod to coccoid-shaped bacterium, designated XZ17(T), was isolated from Namtso Lake of Tibet, China. Strain XZ17(T) grew optimally at pH 8.0-9.0, at 30-33 °C and in the presence of 0-1.0 % (w/v) NaCl. Phylogenetic analysis based on 16S
PMID 27411814