The bacterial strain, Serratia sp. CP-13, has beneficial effects on Linseed under Cd stress.

What is it about?

Inoculation with the bacterial strain Serratia sp. CP-13 showed a positive effect on the growth of linseed, Linum usitatissimum L. cultivated in soil spiked with CdCl2 (0, 5 or 10 mg kg-1). Without inoculation the Cd stress significantly reduced the plant biomass as well as the quantity of proteins and photosynthetic pigments due to enhanced H2O2, malondialdehyde (MDA) contents and impaired nutrient homeostasis. The inoculation increased the plant fresh and dry biomass and plant antioxidation capacity and decreased the lipid peroxidation under Cd stress. In addition, the Serratia sp. inoculation assisted the Cd-stressed plants to maintain an optimum level of nutrients (K, Ca, P, Mg, Fe and Mn). An analysis of bio-concentration and translocation factor of Cd revealed that bacteial inoculation of linseed sequestered Cd in the plant rhizospheric zone.

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Why is it important?

Serratia sp. CP-13 inoculation is a potential candidate for the development of low Cd-accumulating linseed and could be used for phytostabilization of Cd-contaminated rhizosphere/soil colloids.

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