Arsenic-Redox Transformation and Plant Growth Promotion by Purple Nonsulfur Bacteria Rhodopseudomonas palustris CS2 and Rhodopseudomonas faecalis SS5

Figure 6

Effects of As-resistant PNSB on Vigna mungo growth in presence of As compared to the control plants (control = 100%, plants exposed to As). R. palustris CS2 treated plants showed 26.3 and 31.3% increase in shoot and root length, respectively, whereas R. faecalis SS5 treated plants showed 25 and 33.3% increase in shoot and root length, respectively, as compared to the control plants. Shoot and root lengths of plant treated with both R. palustris CS2 and R. faecalis SS5 increased up to 33% and 36.7%, respectively. different from control, .