TY  - JOUR
IS  - 4
AV  - public
VL  - 11
Y1  - 2023///
JF  - MICROORGANISMS
EP  - 23
ID  - publicatio26904
TI  - Development of a Multicomponent Microbiological Soil Inoculant and Its Performance in Sweet Potato Cultivation
N2  - The cultivation and consumption of sweet potato (Ipomoea batatas) are increasing globally. As the usage of chemical fertilizers and pest control agents during its cultivation may lead to soil, water and air pollution, there is an emerging need for environment-friendly, biological solutions enabling increased amounts of healthy crop and efficient disease management. Microbiological agents for agricultural purposes gained increasing importance in the past few decades. Our goal was to develop an agricultural soil inoculant from multiple microorganisms and test its application potential in sweet potato cultivation. Two Trichoderma strains were selected: Trichoderma ghanense strain SZMC 25217 based on its extracellular enzyme activities for the biodegradation of plant residues, and Trichoderma afroharzianum strain SZMC 25231 for biocontrol purposes against fungal plant pathogens. The Bacillus velezensis strain SZMC 24986 proved to be the best growth inhibitor of most of the nine tested strains of fungal species known as plant pathogens, therefore it was also selected for biocontrol purposes against fungal plant pathogens. Arthrobacter globiformis strain SZMC 25081, showing the fastest growth on nitrogen-free medium, was selected as a component with possible nitrogen-fixing potential. A Pseudomonas resinovorans strain, SZMC 25872, was selected for its ability to produce indole-3-acetic acid, which is among the important traits of potential plant growth-promoting rhizobacteria (PGPR). A series of experiments were performed to test the selected strains for their tolerance to abiotic stress factors such as pH, temperature, water activity and fungicides, influencing the survivability in agricultural environments. The selected strains were used to treat sweet potato in two separate field experiments. Yield increase was observed for the plants treated with the selected microbial consortium (synthetic community) in comparison with the control group in both cases. Our results suggest that the developed microbial inoculant has the potential to be used in sweet potato plantations. To the best of our knowledge, this is the first report about the successful application of a fungal-bacterial consortium in sweet potato cultivation.
A1  -  Nagy Viktor Dávid
A1  -  Zhumakayev Anuar
A1  -  Vörös Mónika
A1  -  Bordé Ádám
A1  -  Szarvas Adrienn
A1  -  Sz?cs Attila
A1  -  Kocsubé Sándor
A1  -  Jakab Péter
A1  -  Monostori Tamás
A1  -  Biljana D ?krbic
A1  -  Mohai Edina
A1  -  Hatvani Lóránt
A1  -  Vágvölgyi Csaba
A1  -  Kredics László
SN  - 2076-2607
UR  - https://doi.org/10.3390/microorganisms11040914
ER  -