Identification and comparative analysis of microRNAs in barnyardgrass (Echinochloa crus‐galli) in response to rice allelopathy
Rice allelopathy is a hot topic in the field of allelopathy, and behaviour of donor allelopathic rice has been well documented. However, few study addresses response of receiver barnyardgrass ( BYG ). We found that expression of mi RNAs relevant to plant hormone signal transduction, nucleotide excision repair and the peroxisome proliferator‐activated receptor and p53 signalling pathways was enhanced in BYG co‐cultured with the allelopathic rice cultivar PI 312777, the expression levels of these mi RNA s in BYG plants were positively correlated with allelopathic potential of the co‐cultured rice varieties. Treatment of BYG plants with rice‐produced phenolic acids also increased mi RNA expression in BYG , while treatment with rice‐produced terpenoids had no obvious effect on mi RNA expression. In the hydroponic system, the largest number of M yxococcus sp. was found in the growth medium containing rice with the highest allelopathic potential. The addition of phenolic acids in the hydroponic medium also increased the number of M yxococcus sp. More interestingly, inoculation with M yxococcus xanthus significantly increased mi RNA expression in the treated BYG . Jointed treatments of ferulic acid and M . xanthus led to strongest growth inhibition of BYG . The results suggest that there exist involvement of M yxococcus sp. and mediation of mi RNA expression in rice allelopathy against BYG . This study found that phenolic compounds released from allelopathic rice mediated populations of Myxococcus sp. in the rhizosphere, thereby influenced miRNAs expression in barnyardgrass, which led to growth inhibition of the weed. This is the first time to determine molecular response of allelopathy targeted receiver plant, suggesting complicate interactions between allelopathy donor and receiver plants..
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2015 |
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| Erschienen: |
2015 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:38 |
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| Enthalten in: |
Plant, cell & environment - 38(2015), 7, Seite 1368-1381 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
FANG, CHANGXUN [VerfasserIn] |
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| Links: |
Volltext |
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| Themen: |
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| doi: |
10.1111/pce.12492 |
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OLC1962160068 |
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| 245 | 1 | 0 | |a Identification and comparative analysis of microRNAs in barnyardgrass (Echinochloa crus‐galli) in response to rice allelopathy |
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| 520 | |a Rice allelopathy is a hot topic in the field of allelopathy, and behaviour of donor allelopathic rice has been well documented. However, few study addresses response of receiver barnyardgrass ( BYG ). We found that expression of mi RNAs relevant to plant hormone signal transduction, nucleotide excision repair and the peroxisome proliferator‐activated receptor and p53 signalling pathways was enhanced in BYG co‐cultured with the allelopathic rice cultivar PI 312777, the expression levels of these mi RNA s in BYG plants were positively correlated with allelopathic potential of the co‐cultured rice varieties. Treatment of BYG plants with rice‐produced phenolic acids also increased mi RNA expression in BYG , while treatment with rice‐produced terpenoids had no obvious effect on mi RNA expression. In the hydroponic system, the largest number of M yxococcus sp. was found in the growth medium containing rice with the highest allelopathic potential. The addition of phenolic acids in the hydroponic medium also increased the number of M yxococcus sp. More interestingly, inoculation with M yxococcus xanthus significantly increased mi RNA expression in the treated BYG . Jointed treatments of ferulic acid and M . xanthus led to strongest growth inhibition of BYG . The results suggest that there exist involvement of M yxococcus sp. and mediation of mi RNA expression in rice allelopathy against BYG . This study found that phenolic compounds released from allelopathic rice mediated populations of Myxococcus sp. in the rhizosphere, thereby influenced miRNAs expression in barnyardgrass, which led to growth inhibition of the weed. This is the first time to determine molecular response of allelopathy targeted receiver plant, suggesting complicate interactions between allelopathy donor and receiver plants. | ||
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