10.1021/acs.jafc.5b05224.s001
Ramesh Raliya
Ramesh
Raliya
Jagadish
Chandra Tarafdar
Jagadish Chandra
Tarafdar
Pratim Biswas
Pratim
Biswas
Enhancing the Mobilization of Native Phosphorus in
the Mung Bean Rhizosphere Using ZnO Nanoparticles Synthesized by Soil
Fungi
American Chemical Society
2016
ZnO nanoparticles
plant root surface
mung bean plants
Soil Fungi Phosphorus
Mung Bean Rhizosphere
ZnO Nanoparticles Synthesized
root volume
2016-04-07 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Enhancing_the_Mobilization_of_Native_Phosphorus_in_the_Mung_Bean_Rhizosphere_Using_ZnO_Nanoparticles_Synthesized_by_Soil_Fungi/3178963
Phosphorus
(P) is a limiting factor to plant growth and productivity
in almost half of the world’s arable soil, and its uptake in
plants is often constrained because of its low solubility in the soil.
To avoid repeated and large quantity application of rock phosphate
as a P fertilizer and enhance the availability of native P acquisition
by the plant root surface, in this study a biosynthesized ZnO nanoparticle
was used. Zn acts as a cofactor for P-solubilizing enzymes such as
phosphatase and phytase, and nano ZnO increased their activity between
84 and 108%. The level of resultant P uptake in mung bean increased
by 10.8%. In addition, biosynthesized ZnO also improves plant phenology
such as stem height, root volume, and biochemical indicators such
as leaf protein and chlorophyll contents. In the rhizosphere, increased
chlorophyll content and root volume attract microbial populations
that maintain soil biological health. ICP-MS results showed ZnO nanoparticles
were distributed in all plant parts, including seeds. However, the
concentration of Zn was within the limit of the dietary recommendation.
To the best of our knowledge, this is the first holistic study focusing
on native P mobilization using ZnO nanoparticles in the life cycle
of mung bean plants.