A reappraisal of the content and the differences of phenolic acids between allelopathic and non-allelopathic rice accessions

Li, J.Y.; Zhang, Q.; Yang, Xiaoyan; Hu, W.W.; Lin, Rey-Feng; He, Haibin

doi:10.26651/2017-40-1-1064

Cited by 11 publications

(18 citation statements)

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“…& Weston, 2003;Lynch, 1995). In this paper, we once again proved that there were significant differences in contents of phenolic acid in root exudates between allelopathic and non-allelopathic rice at seedling stage, which was consistent with previous report (Li et al, 2017). Above all, the differences were significantly correlated with fine-root traits and allelopathic potential of rice roots.…”

Section: Discussionsupporting

confidence: 92%

“…The contents of single phenolic acids in the rice root-exudates were quantified using the external standard method by solid-phase extraction-high-performance liquid chromatography (SPE-HPLC) as described previously (Li et al, 2017). The concentrated root-exudates at each leaf-stage were loaded onto Cleanert PEP solid phase extraction cartridges (Agela, China).…”

Section: Quantification Of Phenolic Acids In the Rice Root-exudatesmentioning

confidence: 99%

“…The filtrate was filtered through a 0.22-μm membrane and diluted to a volume of 200 mL. This solution was used as the concentrated root-exudates for evaluation PeerJ reviewing PDF | (2018:08:30907:2:0:NEW 29 Mar 2019)Manuscript to be reviewed of the allelopathic potential and quantitative analysis of phenolic acids(Li et al, 2017;.…”

mentioning

confidence: 99%

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Peer Review #1 of "Fine-root traits of allelopathic rice at the seedling stage and their relationship with allelopathic potential (v0.1)"

2019

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Background. Allelopathic rice releases allelochemicals through its root systems, thereby exerting a negative effect on paddy weeds. This research aimed to evaluate the relationship between fine-root traits and the rice allelopathic potential at the seedling stage. Methods. Two allelopathic rice cultivars, 'PI312777' and 'Taichung Native1,' and one non-allelopathic rice cultivar, 'Lemont,' were grown to the 3-6 leaf stage in a hydroponic system. Their fine roots were collected for morphological trait (root length, root surface area, root volume, and root tips number) in smaller diameter cutoffs and proliferative trait (root biomass) analysis. Their root-exudates were used for quantitative analysis of phenolic acids contents and an evaluation of allelopathic potential. Correlation analysis was also used to assess whether any linear relationships existed. Results. Our results showed that allelopathic rice cultivars had significantly higher fine-root length having diameters < 0.2 mm, more root tips number, and greater root biomass, coupled with higher allelopathic potential and phenolic acid contents of their root exudates, comparing with non-allelopathic rice cultivar. And these fine-root traits were significantlypositively correlated to allelopathic inhibition and total phenolic contents in rice rootexudates. However, there were not significant correlations among the rice allelopathic potential and total phenolic acid contents of rice root-exudates with the root length, root surface area, and root volume of fine root in diameter > 0.2 mm. Discussion. Our results implied that fine-root traits appears to be important in understanding rice allelopathy at the seedling stage. The high allelopathic potential of rice cultivars might be attributed to their higher length of fine roots < 0.2 mm in diameter and more number of root tips of fine root, which could accumulate and release more allelochemicals to solutions, thereby resulting in high inhibition on target plants. The mechanisms regulating this process need to be further studied.

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Section: Discussionsupporting

confidence: 92%

Section: Quantification Of Phenolic Acids In the Rice Root-exudatesmentioning

confidence: 99%

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Peer Review #1 of "Fine-root traits of allelopathic rice at the seedling stage and their relationship with allelopathic potential (v0.1)"

2019

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“…250 mL of hydroponic culture was collected for the determination of phenolic acids in rice root exudates. The treatments were conducted in triplicate (He et al, 2012;Li et al, 2017).…”

Section: Dynamics Of Phenolic Acids In Root Exudates Of Rice Measuredmentioning

confidence: 99%

“…Then OD was measured at 760 nm. The total phenolic compounds were expressed in tannic acid equivalents in micromole per liter of root or leaf extracts (Fang et al, 2013;Li et al, 2017).…”

Section: The Total Concentration Of Phenolic Compounds In Root and Lementioning

confidence: 99%

OsPAL2-1 Mediates Allelopathic Interactions Between Rice and Specific Microorganisms in the Rhizosphere Ecosystem

Xin

et al. 2020

Front. Microbiol.

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Increasing Rice Allelopathy by Induction of Barnyard Grass (Echinochloa crus-galli) Root Exudates

et al. 2017

J Plant Growth Regul

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A reappraisal of the content and the differences of phenolic acids between allelopathic and non-allelopathic rice accessions

Cited by 11 publications

References 0 publications

Peer Review #1 of "Fine-root traits of allelopathic rice at the seedling stage and their relationship with allelopathic potential (v0.1)"

Peer Review #1 of "Fine-root traits of allelopathic rice at the seedling stage and their relationship with allelopathic potential (v0.1)"

OsPAL2-1 Mediates Allelopathic Interactions Between Rice and Specific Microorganisms in the Rhizosphere Ecosystem

Increasing Rice Allelopathy by Induction of Barnyard Grass (Echinochloa crus-galli) Root Exudates

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