( ( ( Microbial populations ) ( in ( all environments ) ) ) ( ( ( ( form ( ( large reservoirs ) ( supporting ( ( the multiplication ) ( of ( the vectors ) ) ) ) ) ) , ) ( enabling ( them ( to ( spread ( to ( all ( other species ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Microbial) (NNS populations)) (PP (IN in) (NP (DT all) (NNS environments)))) (VP (VBP form) (NP (NP (JJ large) (NNS reservoirs)) (VP (VBG supporting) (NP (NP (DT the) (NN multiplication)) (PP (IN of) (NP (DT the) (NNS vectors)))))) (, ,) (S (VP (VBG enabling) (S (NP (PRP them)) (VP (TO to) (VP (VB spread) (PP (TO to) (NP (DT all) (JJ other) (NN species))))))))) (. .)))
Microbial populations in all environments form large reservoirs supporting the multiplication of the vectors, enabling them to spread to all other species.
(ROOT (S (NP (NP (DT All) (NNS members)) (PP (IN of) (NP (DT a) (NN species) (NN living)))) (ADVP (RB together)) (VP (VB form) (NP (DT a) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN population))) (. .)))