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Arbuscular Mycorrhizal Fungal Interacted with Biochar and Enhanced Phosphate-Solubilizing Microorganism Abundance and Phosphorus Uptake in Maize
by
Lingbo Meng
Lingbo Meng
.
1,†,
Zeyu Cheng
Zeyu Cheng
.
2,†,
Yingning Wang
Yingning Wang
.
1
,
Shumin Li
Shumin Li
Prof. Shumin Li has been a professor of Plant Nutrition at Resource and Environmental College, since [...]
Prof. Shumin Li has been a professor of Plant Nutrition at Resource and Environmental College, Northeast Agricultural University, since 2011. Before that, she was an associate professor for six years at this university. From 2013 to 2014, she went to Michigan State University in the United States as a visiting scholar. Afterwards, from October to November 2007, she went to Wageningen University in the Netherlands, the Institute of Organic Agriculture, as a visiting scholar. She completed her PhD studies in the College of Resources and Environment, Plant Nutrition, at China Agricultural University from 2000 to 2004. In addition, she has led and participated in many scientific research projects, such as a study on the mechanism of nitrogen absorption and rhizosphere microbial regulation of soybean/corn intercropping straw combined with returning to the field for subsequent corn, research on the above-ground and underground plasticity and efficient resource utilization of intercropping crops, balanced fertilization and biological fumigation technology for preventing and controlling crop wilt disease, and so on. Her research direction is Rhizosphere microecology.
2,* and
Nicholas Clarke
Nicholas Clarke
.
3
1
School of Geography and Tourism, Harbin University, Harbin 150086, China
2
Resource and Environmental College, Northeast Agricultural University, Harbin 150030, China
3
Norwegian Institute of Bioeconomy Research, P.O. Box 115, N-1431 Aas, Norway
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Agronomy 2024, 14(8), 1678; https://doi.org/10.3390/agronomy14081678 (registering DOI)
Submission received: 23 May 2024
/
Revised: 25 July 2024
/
Accepted: 26 July 2024
/
Published: 30 July 2024
Abstract
In agricultural production, it is crucial to increase the availability of phosphorus (P) in cultivated soil to solve the P limitation. Arbuscular mycorrhizal fungi (AMF) have been proven to promote crop nutrient absorption effectively, while biochar can lead to improvements in soil properties. However, the possible synergistic effect of AMF and biochar on P uptake by crops as well as its underlying mechanisms are unclear. In this study, we conducted a pot experiment to explore the effects of biochar and AMF (Glomus etunicatum) on the community of rhizospheric phosphate-solubilizing microorganisms (PSMs) of maize (Zea mays L. Xianyu-335) using metagenomic methods. The experiment used 0 mg P2O5 g·kg−1 soil (P0) and 30 mg P2O5 g·kg−1 soil (P30) application rates. Each P application rate included 0 (NC), 20 g·kg−1 biochar (BC) addition, inoculation AMF, and without AMF treatments (NM) for a total of eight treatments. During the experiment, both the P uptake and the biomass of maize were measured. The study found that the combination of AMF and biochar significantly increased the mycorrhizal colonization rate of maize roots, regardless of P application level. It was observed that the P uptake by maize was significantly increased when exposed to a combination of AMF and biochar. The increase in P uptake in P0 treatments was 67% higher than the sum of the effects of biochar and AMF inoculation alone. The increase was only 35% higher in P30 treatments, demonstrating a substantially higher interactive effect under P0 than under P30 conditions. The AM-BC treatments significantly increased the abundance of Streptomyces, Bacillus, and Pseudomonas, genera that are known to contain PSMs. In addition, the abundance of genes related to P-cycling (gcd, phoD, and ugpQ) in PSMs increased significantly by 1.5–1.8 times in AM-BC treatments compared with NM-BC and AM-NC treatments under P0 conditions. This increase was significantly and positively correlated with the P uptake. Overall, the results suggest that biochar can help AMF colonize the roots, increasing the functional roles of PSMs in the rhizosphere, which in turn promotes P uptake and biomass in maize. This study provides a new way to improve P-use efficiency and reduce the need for P-fertilizer application in agricultural production.
Share and Cite
MDPI and ACS Style
Meng, L.; Cheng, Z.; Wang, Y.; Li, S.; Clarke, N.
Arbuscular Mycorrhizal Fungal Interacted with Biochar and Enhanced Phosphate-Solubilizing Microorganism Abundance and Phosphorus Uptake in Maize. Agronomy 2024, 14, 1678.
https://doi.org/10.3390/agronomy14081678
AMA Style
Meng L, Cheng Z, Wang Y, Li S, Clarke N.
Arbuscular Mycorrhizal Fungal Interacted with Biochar and Enhanced Phosphate-Solubilizing Microorganism Abundance and Phosphorus Uptake in Maize. Agronomy. 2024; 14(8):1678.
https://doi.org/10.3390/agronomy14081678
Chicago/Turabian Style
Meng, Lingbo, Zeyu Cheng, Yingning Wang, Shumin Li, and Nicholas Clarke.
2024. "Arbuscular Mycorrhizal Fungal Interacted with Biochar and Enhanced Phosphate-Solubilizing Microorganism Abundance and Phosphorus Uptake in Maize" Agronomy 14, no. 8: 1678.
https://doi.org/10.3390/agronomy14081678
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