TY - JOUR
T1 - The Mexican giant maize of Jala landrace harbour plant-growth-promoting rhizospheric and endophytic bacteria
AU - Rios-Galicia, Bibiana
AU - Villagómez-Garfias, Catalina
AU - De la Vega-Camarillo, Esaú
AU - Guerra-Camacho, Jairo Eder
AU - Medina-Jaritz, Nora
AU - Arteaga-Garibay, Ramón Ignacio
AU - Villa-Tanaca, Lourdes
AU - Hernández-Rodríguez, César
N1 - Publisher Copyright:
© 2021, King Abdulaziz City for Science and Technology.
PY - 2021/10
Y1 - 2021/10
N2 - The giant landrace of maize Jala is a native crop cultured in Nayarit and Jalisco States in the occident of México. In this study, after screening 374 rhizospheric and endophytic bacteria isolated from rhizospheric soil, root, and seed tissues of maize Jala, a total of 16 bacterial strains were selected for their plant-growth-promoting potential and identified by 16S rRNA phylogenetic analysis. The isolates exhibited different combinations of phenotypic traits, including solubilisation of phosphate from hydroxyapatite, production of a broad spectrum of siderophores such as cobalt, iron, molybdenum, vanadium, or zinc (Co2+, Fe3+, Mo2 +, V5+, Zn2+), and nitrogen fixation capabilities, which were detected in both rhizospheric and endophytic strains. Additional traits such as production of 1-aminocyclopropane-1-carboxylate deaminase and a high-rate production of Indoleacetic Acid were exclusively detected on endophytic isolates. Among the selected strains, the rhizospheric Burkholderia sp., and Klebsiella variicola, and the endophytic Pseudomonas protegens significantly improved the growth of maize plants in greenhouse assays and controlled the infection against Fusarium sp. 50 on fresh maize cobs. These results present the first deep approach on handling autochthonous microorganisms from native maize with a potential biotechnological application in sustainable agriculture as biofertilizers or biopesticides.
AB - The giant landrace of maize Jala is a native crop cultured in Nayarit and Jalisco States in the occident of México. In this study, after screening 374 rhizospheric and endophytic bacteria isolated from rhizospheric soil, root, and seed tissues of maize Jala, a total of 16 bacterial strains were selected for their plant-growth-promoting potential and identified by 16S rRNA phylogenetic analysis. The isolates exhibited different combinations of phenotypic traits, including solubilisation of phosphate from hydroxyapatite, production of a broad spectrum of siderophores such as cobalt, iron, molybdenum, vanadium, or zinc (Co2+, Fe3+, Mo2 +, V5+, Zn2+), and nitrogen fixation capabilities, which were detected in both rhizospheric and endophytic strains. Additional traits such as production of 1-aminocyclopropane-1-carboxylate deaminase and a high-rate production of Indoleacetic Acid were exclusively detected on endophytic isolates. Among the selected strains, the rhizospheric Burkholderia sp., and Klebsiella variicola, and the endophytic Pseudomonas protegens significantly improved the growth of maize plants in greenhouse assays and controlled the infection against Fusarium sp. 50 on fresh maize cobs. These results present the first deep approach on handling autochthonous microorganisms from native maize with a potential biotechnological application in sustainable agriculture as biofertilizers or biopesticides.
KW - Indoleacetic acid
KW - Maize
KW - Nitrogen fixation
KW - Phosphate solubilisation
KW - Plant-growth-promoting bacteria (PGPB)
KW - Siderophore
UR - http://www.scopus.com/inward/record.url?scp=85115617513&partnerID=8YFLogxK
U2 - 10.1007/s13205-021-02983-6
DO - 10.1007/s13205-021-02983-6
M3 - Artículo
C2 - 34631348
AN - SCOPUS:85115617513
SN - 2190-572X
VL - 11
JO - 3 Biotech
JF - 3 Biotech
IS - 10
M1 - 447
ER -