Abstract
Phyllosphere microbiome plays important roles in crop adaptation to the changing environments. Perennial woody crops undergo annual cycles with the changing weather parameters and the biological factors, which might shape the phyllosphere microbial community. In this study, we aimed to investigate the dynamics of phyllosphere microbiome of pomelo ( Citrus maxima (Burm.) Merr.), an economically important horticultural crops worldwide, and to compare the respective contribution of the weather parameters and the biotic factors to the microbial community assembly, with special focus on the amino acids in leaves. Hi-Seq analysis revealed that both bacterial and fungal communities showed annual cycle dynamics, and the bacterial community in summer was much different from those in other seasons probably due to high temperature and precipitation. However, contribution of the biotic factors (e.g., leaf traits) (12%-29%) to microbial community assembly was higher than that of the weather parameters (4%-15%). Redundancy analysis indicated that the leaf amino acids significantly affected bacterial community while sugars significantly affected fungal community, highlighting the differential patterns of bacterial and fungal community as affected by the biotic factors. Finally, structure equation model showed that the weather parameters influenced microbial community colonizing pomelo leaves both in a direct way and in an indirect way via leaf traits (mainly amino acids). These results demonstrate the primary role of weather parameters and the key role of leaf amino acids in shaping phyllosphere microbiome.
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Claims 7
Claim · model-written summary
Bacterial and fungal communities both showed annual cycles.
- Taxon
- pomelo
Citrus maximat0 - Outcome
- bacterial and fungal communities showed annual cycle dynamicse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both bacterial and fungal communities showed annual cycle dynamics”
t0“pomelo (Citrus maxima (Burm.) Merr.)”
Claim · model-written summary
Summer bacterial communities differed from other seasons.
- Taxon
- pomeloCitrus maximat0
- Outcome
- bacterial communitye0
- Direction
- much differente0
- Comparator
- other seasonse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the bacterial community in summer was much different from those in other seasons”
t0“pomelo (Citrus maxima (Burm.) Merr.)”
Claim · model-written summary
Biotic factors accounted for 12%-29% of community assembly, more than weather at 4%-15%.
- Taxon
- pomeloCitrus maximat0
- Treatment
- biotic factorse0
- Outcome
- microbial community assemblye0
- Direction
- highere0
- Value
- 12%-29%e0
- Qualifier
- 4%-15%e0
- Comparator
- weather parameterse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“contribution of the biotic factors (e.g., leaf traits) (12%-29%) to microbial community assembly was higher than that of the weather parameters (4%-15%)”
t0“pomelo (Citrus maxima (Burm.) Merr.)”
Claim · model-written summary
Leaf amino acids significantly affected bacterial communities.
- Taxon
- pomeloCitrus maximat0
- Compound
- amino acidse0
- Outcome
- bacterial communitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf amino acids significantly affected bacterial community”
t0“pomelo (Citrus maxima (Burm.) Merr.)”
Claim · model-written summary
Sugars significantly affected fungal communities.
- Taxon
- pomeloCitrus maximat0
- Compound
- sugarse0
- Outcome
- fungal communitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sugars significantly affected fungal community”
t0“pomelo (Citrus maxima (Burm.) Merr.)”
Claim · model-written summary
Weather parameters directly influenced microbes colonizing pomelo leaves.
- Taxon
- pomeloCitrus maximae0
- Treatment
- weather parameterse0
- Outcome
- microbial community colonizing pomelo leavese0
- Qualifier
- in a direct waye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the weather parameters influenced microbial community colonizing pomelo leaves both in a direct way and in an indirect way via leaf traits (mainly amino acids)”
Claim · model-written summary
Weather parameters indirectly influenced leaf microbes via leaf traits, mainly amino acids.
- Taxon
- pomeloCitrus maximae0
- Outcome
- microbial community colonizing pomelo leavese0
- Qualifier
- in an indirect way via leaf traits (mainly amino acids)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the weather parameters influenced microbial community colonizing pomelo leaves both in a direct way and in an indirect way via leaf traits (mainly amino acids)”