“…Ironically, the development of these phytostimulators can also be caused by certain bacteria, such as PGPR in plants. Phytostimulators IAA synthesized by PGPRs influence cell division, cell enlargement, root initiation, phototropism, growth rate, apical dominance, geotropism, etc., in plants (Kour et al, 2019; Rehman et al, 2020). The development of phytostimulators such as IAA, cytokinin and gibberellins or 1‐aminocyclopropane‐1‐carboxylic acid (ACC) deaminase, an enzyme that can lower plant ethylene levels that are usually enhanced by a wide range of environmental stresses such as floods, drought, heavy metals, organic pollutants (Arora & Jha, 2019; Prasad et al, 2019).…”