Repositorio
Institucional

Vangnai, Alisa S.

Silambarasan, Sivagnanam

Cornejo, Pablo

Biodegradation of 4-nitroaniline by novel isolate Bacillus sp. strain AVPP64 in the presence of pesticides

ELSEVIER SCI LTD

ENVIRONMENTAL POLLUTION

en

In this study, Bacillus sp. strain AVPP64 was isolated from diuron-contaminated soil. It showed 4-nitroaniline (4 NA) degradation, pesticide tolerance, and self-nutrient integration via nitrogen (N)-fixation and phosphate (P)solubilization. The rate constant (k) and half-life period (t(1/2)) of 4-NA degradation in the aqueous medium inoculated with strain AVPP64 were observed to be 0.445 d-1 and 1.55 d, respectively. Nevertheless, in the presence of chlorpyrifos, profenofos, atrazine and diuron pesticides, strain AVPP64 degraded 4-NA with t(1/2) values of 2.55 d, 2.26 d, 2.31 d and 3.54 d, respectively. The strain AVPP64 fixed 140 mu g mL(-1) of N and solubilized 103 mu g mL(-1) of P during the presence of 4-NA. In addition, strain AVPP64 produced significant amounts of plant growth-promoting metabolites like indole 3-acetic acid, siderophores, exo-polysaccharides and ammonia. In the presence of 4-NA and various pesticides, strain AVPP64 greatly increased the growth and biomass of Vigna radiata and Crotalaria juncea plants. These results revealed that Bacillus sp. strain AVPP64 can be used as an inoculum for bioremediation of 4-NA contaminated soil and sustainable crop production even when pesticides are present.

artículo original

"Silambarasan acknowledged the post-doctoral fellowship provided by Ratchadaphisek Somphot Endowment Fund, Chulalongkorn University. S. Silambarasan also thankfully acknowledges the financial support received from ""Vicerrectoria de Investigacion y Postgrado, Universidad de La Frontera, Chile"". P. Cornejo acknowledges the ""Agencia Nacional de Investigacion y Desarrollo"" (ANID-Chile) for funding the ANID/FONDECYT/1210964 and ANID/FONDAP/15130015 grants, as well as the Chilean Ministry of Education (MINEDUC Chile) for funding the InES19 project, code FRO19101. The fund by the National Research Council of Thailand (N42A640329) is acknowledged.

Silambarasan agradeció la beca postdoctoral proporcionada por el Fondo de Dotación Ratchadaphisek Somphot de la Universidad de Chulalongkorn. S. Silambarasan también agradece el apoyo financiero recibido de la ""Vicerrectoria de Investigación y Postgrado, Universidad de La Frontera, Chile"". P. Cornejo agradece a la Agencia Nacional de Investigación y Desarrollo (ANID-Chile) por financiar las becas ANID/FONDECYT/1210964 y ANID/FONDAP/15130015, así como al Ministerio de Educación de Chile (MINEDUC Chile) por financiar el InES19 proyecto, código FRO19101. Se reconoce el fondo del Consejo Nacional de Investigación de Tailandia (N42A640329)."

10.1016/j.envpol.2022.119453

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Bacillus sp

strain AVPP64

4-nitroaniline

Biodegradation

Pesticides tolerance

Nitrogen fixation

Phosphate solubilization

P-NITROANILINE

WASTE-WATER

DEGRADATION

GROWTH

SOIL

EFFICIENCY

OXIDATION

BACTERIUM

TOXICITY

TOLERANT

Ciencias Ambientales

Bacillus sp

cepa AVPP64

4-nitroanilina

Biodegradación

Tolerancia a pesticidas

Fijación de nitrógeno

Solubilización de fosfato

P-NITROANILINA

AGUAS RESIDUALES

DEGRADACIÓN

CRECIMIENTO

SUELO

EFICIENCIA

OXIDACIÓN

BACTERIA

TOXICIDAD

TOLERANTE

Biorremediación

Biotecnología Ambiental

Biotecnología agrícola

Biodegradation of 4-nitroaniline by novel isolate Bacillus sp. strain AVPP64 in the presence of pesticides

artículo original

version publicada

0

metadata

metadata

WOS:000804991800002

ANID FONDECYT 1210964

ANID FONDAP 15130015

MINEDUC FRO19101

NRCT N42A640329