TY - JOUR
T1 - Enhancing soil health and nutrient cycling through soil amendments
T2 - Improving the synergy of bacteria and fungi
AU - Ding, Yanhong
AU - Gao, Xiaodong
AU - Shu, Duntao
AU - Siddique, Kadambot H.M.
AU - Song, Xiaolin
AU - Wu, Pute
AU - Li, Changjian
AU - Zhao, Xining
N1 - Funding Information:
This research was funded by the National Key Research and Development Program of China ( 2021YFD1900700 ), the National Natural Science Foundation of China ( 42125705 , 52209069 ), the Key Research and Development Program of Shaanxi Province ( 2020ZDLNY07-04 , 2021NY-064 ) and the Cyrus Tang Foundation .
Publisher Copyright:
© 2024 Elsevier B.V.
PY - 2024/5/1
Y1 - 2024/5/1
N2 - The synergy between bacteria and fungi is a key determinant of soil health and have a positive effect on plant development under drought conditions, with the potentially enhancing the sustainability of amending soil with natural materials. However, identifying how soil amendments influence plant growth is often difficult due to the complexity of microorganisms and their links with different soil amendment types and environmental factors. To address this, we conducted a field experiment to examine the impact of soil amendments (biochar, Bacillus mucilaginosus, Bacillus subtilis and super absorbent polymer) on plant growth. We also assessed variations in microbial community, links between fungi and bacteria, and soil available nutrients, while exploring how the synergistic effects between fungus and bacteria influenced the response of soil amendments to plant growth. This study revealed that soil amendments reduced soil bacterial diversity but increased the proportion of the family Enterobacteriaceae, Nitrosomonadaceae, and also increased soil fungal diversity and the proportion of the sum of the family Lasiosphaeriaceae, Chaetomiaceae, Pleosporaceae. Changes in soil microbial communities lead to increase the complexity of microbial co-occurrence networks. Furthermore, this heightened network complexity enhanced the synergy of soil bacteria and fungi, supporting bacterial functions related to soil nutrient cycling, such as metabolic functions and genetic, environmental, and cellular processes. Hence, the BC and BS had 3.0-fold and 0.5-fold greater root length densities than CK and apple tree shoot growth were increased by 62.14 %,50.53 % relative to CK, respectively. In sum, our results suggest that the synergistic effect of bacteria and fungi impacted apple tree growth indirectly by modulating soil nutrient cycling. These findings offer a new strategy for enhancing the quality of arable land in arid and semi-arid regions.
AB - The synergy between bacteria and fungi is a key determinant of soil health and have a positive effect on plant development under drought conditions, with the potentially enhancing the sustainability of amending soil with natural materials. However, identifying how soil amendments influence plant growth is often difficult due to the complexity of microorganisms and their links with different soil amendment types and environmental factors. To address this, we conducted a field experiment to examine the impact of soil amendments (biochar, Bacillus mucilaginosus, Bacillus subtilis and super absorbent polymer) on plant growth. We also assessed variations in microbial community, links between fungi and bacteria, and soil available nutrients, while exploring how the synergistic effects between fungus and bacteria influenced the response of soil amendments to plant growth. This study revealed that soil amendments reduced soil bacterial diversity but increased the proportion of the family Enterobacteriaceae, Nitrosomonadaceae, and also increased soil fungal diversity and the proportion of the sum of the family Lasiosphaeriaceae, Chaetomiaceae, Pleosporaceae. Changes in soil microbial communities lead to increase the complexity of microbial co-occurrence networks. Furthermore, this heightened network complexity enhanced the synergy of soil bacteria and fungi, supporting bacterial functions related to soil nutrient cycling, such as metabolic functions and genetic, environmental, and cellular processes. Hence, the BC and BS had 3.0-fold and 0.5-fold greater root length densities than CK and apple tree shoot growth were increased by 62.14 %,50.53 % relative to CK, respectively. In sum, our results suggest that the synergistic effect of bacteria and fungi impacted apple tree growth indirectly by modulating soil nutrient cycling. These findings offer a new strategy for enhancing the quality of arable land in arid and semi-arid regions.
KW - Co-occurrence network
KW - Soil amendments
KW - Soil microorganism
KW - Synergistic promotion
UR - http://www.scopus.com/inward/record.url?scp=85186958030&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2024.171332
DO - 10.1016/j.scitotenv.2024.171332
M3 - Article
C2 - 38447716
AN - SCOPUS:85186958030
SN - 0048-9697
VL - 923
JO - Science of the Total Environment
JF - Science of the Total Environment
M1 - 171332
ER -
