Abstract
Root exudates and rhizosphere microorganisms play key roles in the colonization of toxic plants under climate change and land degradation. However, how root exudates affect the rhizosphere microorganisms and soil nutrients of toxic plants in degraded grasslands remains unknown. We compared the interaction of soil microbial communities, root exudates, microbial carbon metabolism, and environmental factors in the rhizosphere of toxic and non-toxic plants. Deterministic processes had a greater effect on toxic than non-toxic plants, as root exudates affected rhizosphere microorganisms directly. The 328 up-regulated compounds in root exudates of toxic plants affected the diversity of rhizosphere microorganisms. Rhizosphere bacteria-enriched enzymes were involved in the phenylpropanoid biosynthesis pathway. Root exudates of toxic plants form complex networks of rhizosphere microorganisms, provide high rhizosphere nutrients, and increase microbial carbon metabolism. The interaction between root exudates and rhizosphere microorganisms is the key mechanism that enables toxic plants to spread in degraded grassland habitats.
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Claims 8
Claim · model-written summary
Deterministic processes had a greater effect in toxic plants than in non-toxic plants.
Verbatim
e0“Deterministic processes had a greater effect on toxic than non-toxic plants, as root exudates affected rhizosphere microorganisms directly”
e1“The 328 up-regulated compounds in root exudates of toxic plants affected the diversity of rhizosphere microorganisms”
Claim · model-written summary
Root exudates affected rhizosphere microorganisms directly, which underlies the deterministic processes in toxic plants.
Verbatim
e0“Deterministic processes had a greater effect on toxic than non-toxic plants, as root exudates affected rhizosphere microorganisms directly”
e1“The 328 up-regulated compounds in root exudates of toxic plants affected the diversity of rhizosphere microorganisms”
Claim · model-written summary
The 328 up-regulated compounds in root exudates of toxic plants affected rhizosphere microorganism diversity.
- Taxon
- toxic plantse0
- Compound
- up-regulated compoundse0
- Outcome
- diversity of rhizosphere microorganismse0
- Value
- 328e0
Not reportedDirection
Verbatim
e0“The 328 up-regulated compounds in root exudates of toxic plants affected the diversity of rhizosphere microorganisms”
Claim · model-written summary
Root exudates of toxic plants form complex networks of rhizosphere microorganisms.
Verbatim
e0“Root exudates of toxic plants form complex networks of rhizosphere microorganisms, provide high rhizosphere nutrients, and increase microbial carbon metabolism”
Claim · model-written summary
Root exudates of toxic plants provide high rhizosphere nutrients.
Verbatim
e0“Root exudates of toxic plants form complex networks of rhizosphere microorganisms, provide high rhizosphere nutrients, and increase microbial carbon metabolism”
Claim · model-written summary
Root exudates of toxic plants increase microbial carbon metabolism.
Verbatim
e0“Root exudates of toxic plants form complex networks of rhizosphere microorganisms, provide high rhizosphere nutrients, and increase microbial carbon metabolism”
Claim · model-written summary
Rhizosphere bacteria-enriched enzymes are involved in the phenylpropanoid biosynthesis pathway.
Verbatim
e0“Rhizosphere bacteria-enriched enzymes were involved in the phenylpropanoid biosynthesis pathway”
e1“The 328 up-regulated compounds in root exudates of toxic plants affected the diversity of rhizosphere microorganisms”
Claim · model-written summary
The interaction between root exudates and rhizosphere microorganisms is the key mechanism enabling toxic plants to spread in degraded grassland habitats.
Verbatim
e0“The interaction between root exudates and rhizosphere microorganisms is the key mechanism that enables toxic plants to spread in degraded grassland habitats”