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Table 2 Possible B. amyloliquefaciens SQR9 genes involved in tryptophan dependent IAA production

From: Analysis and cloning of the synthetic pathway of the phytohormone indole-3-acetic acid in the plant-beneficial Bacillus amyloliquefaciens SQR9

IAA synthesis pathways

Enzymes proposed in each step

Putative genes in SQR9 and accession numbersa

IPyA

Amino transferase

patB (V529_31110), bioA(V529_17980), yotD(V529_21800)

Indolepyruvate decarboxylase

ydaP(V529_04190), pycA (V529_14260), padC(V529_34370), yclB(V529_03390), yclC(V529_03400)

IAAld dehydrogenase

aldX(V529_39560), dhaS(V529_19360), yfmT(V529_06950), ywdH(V529_29500)

IAM

Trp mono-oxygenase

Not detected

IAM hydrolase

Not detected

TAM

Trp decarboxylase

ydaP(V529_04190), pycA(V529_14260), padC(V529_34370), yclB(V529_03390), yclC(V529_03400)

Amine oxidase

Not detected

IAAld dehydrogenase

aldX(V529_39560), dhaS(V529_19360), yfmT(V529_06950), ywdH(V529_29500)

IAN

Nitrilase

yhcX(V529_08860)

Other pathway

Tryptophan acetyltransferase

ysnE(V529_38080)

  1. aAccession number was shown in bracket. IPyA , IAM, IAN and TAM are abbreviates of indole-3-pyruvic acid, indole-3-acetamide, indole-3-acetonitrile, and tryptamine pathways, respectively