Table S1. Biochemical characteristics and PGP attributes of the selected endophytic actinomycetes

Isolates / IAAa
(µg mg-1 protein) / Siderophore productionc / Ammonia productionb / Lysozyme sensitivityc / Gelatin liquefactionc / Hydrogen sulphide productionc / Casein hydrolysisc / Urea hydrolysisc
DE-3 / 57.83 / + / +++ / + / + / - / - / +
DE-4 / 58.27 / - / +++ / + / - / - / + / +
DE-7 / 79.53 / - / + / + / - / + / - / +
DE-10 / 84.34 / + / +++ / + / - / - / + / +
DE-12 / 55.94 / - / +++ / + / + / - / + / +
DE-20 / 64.05 / - / ++ / + / - / - / + / -
DE-21 / 47.32 / + / ++ / + / - / - / + / -
DE-27 / 82.48 / + / ++ / + / + / - / - / +
DE-29 / 32.67 / + / ++ / + / - / - / + / -
DE-32 / 40.49 / - / +++ / + / - / - / + / +
DE-33 / 47.61 / - / ++ / + / + / - / - / +
DE-39 / 62.74 / - / ++ / + / + / - / - / +
DE-45 / 59.33 / - / +++ / + / - / - / - / +
DE-46 / 68.73 / - / +++ / + / - / - / + / -
DE-48 / 22.19 / + / ++ / + / + / + / + / +
DE- 49 / 21.97 / + / + / + / + / - / + / +
DE-50 / 58.94 / + / ++ / + / + / - / - / -
DE-52 / 62.28 / - / +++ / - / + / - / - / +
DE-54 / 20.49 / + / +++ / + / - / - / + / +

a IAA production at -0.73 Mpa water stress

b + low, ++ moderate, +++ high

c + positive, - negative