Abstract
ne of the main weeds ways to release allelochemicals is root exudation, which is an important regulating agent in neighbor plants and microbes. The rhizosphere microbial communities were clearly rich, compared with non rhizosphere soil at both high and low density areas of filed bindweeds (Convolvulus arvensis L.). Bindweed roots exudates inhibited rhizosphere soil bacteria and fungi in high density sites than the low density ones. The EC 50 of bindweed ethyl acetate root exudates extract was 1625 (Lactuca sativa L.) and 1360 g/g (Phalaris paradoxa L.) for seedlings biomass fresh weights. The amount of total phenolics was higher in rhizosphere than non rhizosphere soil that ranged between 0.7 to 0.9 and 0.3 to 0.57 mg/g soil, respectively. The analysis of exudates profile has shown six compounds, namely umbelliferone (C 9 H 6 O 3 ) , quercetin (C 15 H 10 O 7 ), gentisic acid glycoside (C 13 H 16 O 9 ), coumaric acid glycoside (C 15 H 18 O 8 ), vanillic glycoside (C 14 H 18 O 9 ) and ferulic glycoside (C 16 H 20 O 9 ), characterized by LC-MS. These results support the aggressiveness of bindweed in different types of soil through its suppressive effects upon associated plants and microbes through release of underground chemical signals.
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Claims 8
Claim · model-written summary
Rhizosphere microbial communities were richer than non-rhizosphere soil at high and low bindweed densities.
- Taxon
- bindweeds (Convolvulus arvensis L.)
.jpg?width=60)
Convolvulus arvensise0 - Outcome
- rhizosphere microbial communitiese0
- Direction
- riche0
- Qualifier
- both high and low density arease0
- Comparator
- non rhizosphere soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The rhizosphere microbial communities were clearly rich, compared with non rhizosphere soil at both high and low density areas of filed bindweeds (Convolvulus arvensis L.).”
Claim · model-written summary
Bindweed exudates inhibited rhizosphere soil bacteria and fungi more at high-density sites than low-density sites.
Verbatim
e0“Bindweed roots exudates inhibited rhizosphere soil bacteria and fungi in high density sites than the low density ones.”
Claim · model-written summary
The EC50 of bindweed ethyl acetate root exudates for Lactuca sativa seedling fresh biomass was 1625.
- Taxon
- Lactuca sativa L.
Lactuca sativae0 - Treatment
- bindweed ethyl acetate root exudates extracte0
- Interactor
- bindweede0weed
- Outcome
- seedlings biomass fresh weightse0
- Value
- 1625e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The EC 50 of bindweed ethyl acetate root exudates extract was 1625 (Lactuca sativa L.) and 1360 g/g (Phalaris paradoxa L.) for seedlings biomass fresh weights.”
Claim · model-written summary
The EC50 of bindweed ethyl acetate root exudates for Phalaris paradoxa seedling fresh biomass was 1360 g/g.
- Taxon
- Phalaris paradoxa L.
Phalaris paradoxae0 - Treatment
- bindweed ethyl acetate root exudates extracte0
- Interactor
- bindweede0weed
- Outcome
- seedlings biomass fresh weightse0
- Value
- 1360 g/ge0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The EC 50 of bindweed ethyl acetate root exudates extract was 1625 (Lactuca sativa L.) and 1360 g/g (Phalaris paradoxa L.) for seedlings biomass fresh weights.”
Claim · model-written summary
Total phenolics were higher in rhizosphere soil than non-rhizosphere soil.
- Outcome
- amount of total phenolicse0
- Direction
- highere0
- Value
- 0.7 to 0.9e0
- Qualifier
- 0.3 to 0.57 mg/g soile0
- Comparator
- non rhizosphere soile0
- Setting
- rhizospheree0
Not reportedTaxon
Verbatim
e0“The amount of total phenolics was higher in rhizosphere than non rhizosphere soil that ranged between 0.7 to 0.9 and 0.3 to 0.57 mg/g soil, respectively.”
Claim · model-written summary
LC-MS identified umbelliferone, quercetin and gentisic acid glycoside in exudates.
Verbatim
e0“The analysis of exudates profile has shown six compounds, namely umbelliferone (C 9 H 6 O 3 ) , quercetin (C 15 H 10 O 7 ), gentisic acid glycoside (C 13 H 16 O 9 ), coumaric acid glycoside (C 15 H 18 O 8 ), vanillic glycoside (C 14 H 18 O 9 ) and ferulic glycoside (C 16 H 20 O 9 ), characterized by LC-MS.”
t0“BINDWEED (CONVOLVULUS ARVENSIS L.)”
Claim · model-written summary
LC-MS identified coumaric acid glycoside, vanillic glycoside and ferulic glycoside in exudates.
Verbatim
e0“The analysis of exudates profile has shown six compounds, namely umbelliferone (C 9 H 6 O 3 ) , quercetin (C 15 H 10 O 7 ), gentisic acid glycoside (C 13 H 16 O 9 ), coumaric acid glycoside (C 15 H 18 O 8 ), vanillic glycoside (C 14 H 18 O 9 ) and ferulic glycoside (C 16 H 20 O 9 ), characterized by LC-MS.”
t0“BINDWEED (CONVOLVULUS ARVENSIS L.)”
Claim · model-written summary
Bindweed aggressiveness is attributed to suppression of associated plants and microbes by underground chemical signals.
Verbatim
e0“These results support the aggressiveness of bindweed in different types of soil through its suppressive effects upon associated plants and microbes through release of underground chemical signals.”
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