A proposal for the nomenclature and classification of the Proteus and Providencia groups

Abstract

T h e b i o c h e m i c a l c h a r a c t e r s of t h e b a c t e r i a o f t h e t r i b e , P r o t e e a e a r e t a b u l a t e d i n o r d e r t h a t c o n c l u s i o n s m a y b e d r a w n a s t o t h e i r t a x o n o m i c r e l a t i o n s h i p s .T h e e v i d e n c e i n d i c a t e s t h a t P r o t e u s v u l g a r i s , ,P. m i r a b i l i s ,-P. r e t t g e r i a n d P r o v i d e n c i a a l l b e l o n g i n a m a j o r s u b d i v i s i o n of t h e f a m i l y E n t e r o b a ct e r i a c e a e of t r i b a l r a n k w h i c h j u s t i f i e s t h e r e c o g n i t i o n of t h e t r i b e P r o t e e a e . T h e b i oc h e m i c a l c h a r a c t e r i s t i c s i n c l u d e P r o v i d e n c i a i n t h e t r i b e .T h e b i o c h e m i c a l d i f f e r e n c e s b e t w e e n t h e a b o v e -m e n t i o n e d m e m b e r s a r e a t g e n e r i c l e v e l a n d t h e d i v i s i o n of t h e t r i b e i n t o f o u r g e n e r a -P r o t e u s , M o r g a n e l l a , R e t t g e r --e l l a , P r o v i d e n c i a -s e e m s t o b e j u s t i f i e d . 2 .v u l g a r i s a n d ,P. m i r a b i l i s m a y b e c o n s i d e r e d a s t w o b i o g r o u p s o f t h e g e n u s P r o t e u s . T h e s e r o t y p e s o f t h e g e n e r a a r e c o m p o s e d of m a n y i n f r a s u b s p e c i f i c e n t i t i e s s u c h a s b i o g r o u p s , b i o t y p e s a n d p h a g e t y p e s ; t h e y a r e i n r e a l i t y m o r e i n c l u s i v e t a x a a n d s h o u l d b e r e g a r d e d a s s p e c i e s . P r o p o s a l s f o r t h e c l a s s i f i c a t i o n a n d n o m e n c l a t u r e of t h e t r i b e P r o t e e a e a r e o u t l i n e d .

Identification of multi-trait PGPR isolates and evaluating their potential as inoculants for wheat

“…Isolates AW4 and AW5 tested positive for indole test, methyl red test and negative for urease test, which was essential for their identification (Holt et al 1994) as Providencia genera. Rauss (1962) proposed the nomenclature and identification of this genus in the International Bulletin of Bacteriological Nomenclature and Taxonomy on the basis of their biochemical tests.…”

Deoxyribonucleic Acid Relatedness of Proteus and Providencia Species

“…These are based on the production of gas from glucose and the fermentation of adonitol and inositol (17; see Table 12). Several other taxonomic proposals for Proteus and Providencia have been reviewed by Rauss (38). The best known of these is Kauffmann's recommendation of four genera: Proteus, Morganella, Rettgerella, and Providencia (26).…”

“…The fourgenus concept with Prot. hauseri was endorsed by Rauss (38)) and Coetzee (7) endorsed the four-genus system while retaining P. mira bizis and P. vulgaris. Johnson et al (24) teus and Providencia by numerical taxonomy.…”

The Morphology of Proteus Bacteriophages

“…They display many intra-and inter-group differences (Ewing, 1958) and their classification is uncertain. Rauss (1962) would allocate them tribal rank in the family with genera Proteus, Morganella, Rettgerella and Providencia. Topley & Wilson's Principles (1964) recognize ' vulgaris, mirabilis, morganii and rettgeri ' species in a genus Proteus of the tribe Enterobacterieae.…”