Interference of allelopathic rice with penoxsulam‐resistant barnyardgrass

Yang, Xiao‐Sheng; Kong, Chui‐Hua; Yang, Xiaoyan; Li, Yongfeng

doi:10.1002/ps.4617

Cited by 15 publications

(16 citation statements)

References 42 publications

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“…Momilactone B, which is produced by Oryza sativa , has been studied in soil experiments. It was found that the penoxsulam‐resistant barnyardgrass could be inhibited through interactions with the roots of Oryza sativa , due to production of this diterpene . In the case of momilactone A, Xu et al demonstrated that copalyl diphosphate synthase 4 and kaurene synthase‐like 4 are involved in the production of this diterpene.…”

Section: Chemistrymentioning

confidence: 99%

“…It was found that the penoxsulam-resistant barnyardgrass could be inhibited through interactions with the roots of Oryza sativa, due to production of this diterpene. 131 In the case of momilactone A, Xu et al 132 demonstrated that copalyl diphosphate synthase 4 and kaurene synthase-like 4 are involved in the production of this diterpene. Consequently, these synthases provide molecular targets for the future genetic manipulation of rice to improve its allelopathic capabilities.…”

Section: Diterpenesmentioning

confidence: 99%

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Recent advances in allelopathy for weed control: from knowledge to applications

Macías

Mejías

Molinillo

2019

Pest Management Science

211

131

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Allelopathy is the biological phenomenon of chemical interactions between living organisms in the ecosystem, and must be taken into account in addressing pest and weed problems in future sustainable agriculture. Allelopathy is a multidisciplinary science, but in some cases, aspects of its chemistry are overlooked, despite the need for a deep knowledge of the chemical structural characteristics of allelochemicals to facilitate the design of new herbicides. This review is focused on the most important advances in allelopathy, paying particular attention to the design and development of phenolic compounds, terpenoids and alkaloids as herbicides. The isolation of allelochemicals is mainly addressed, but other aspects such as the analysis and activities of derivatives or analogs are also covered. Furthermore, the use of allelopathy in the fight against parasitic plants is included. The past 12 years have been a prolific period for publications on allelopathy. This critical review discusses future research areas in this field and the state of the art is analyzed from the chemist's perspective. © 2019 Society of Chemical Industry

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Section: Chemistrymentioning

confidence: 99%

Section: Diterpenesmentioning

confidence: 99%

Recent advances in allelopathy for weed control: from knowledge to applications

Macías

Mejías

Molinillo

2019

Pest Management Science

211

131

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“…In addition, resistance indices to penoxsulam have been reported to reach the values of 28.1 and 13.7 for E. phyllopogon and E. crus-galli, respectively [41]. E. crus-galli populations resistant to penoxsulam were also found in the studies of Yang et al [42] and Le et al [43]. In another study, the efficacy of penoxsulam was low against E. crus-galli accessions since it ranged from 25% to 32% for plants derived from seeds collected from plots treated with penoxsulam [44].…”

Section: Discussionmentioning

confidence: 72%

Efficacy of Different Herbicides on Echinochloa colona (L.) Link Control and the First Case of Its Glyphosate Resistance in Greece

Travlos

Kanatas²,

Τσεκούρα

et al. 2020

Agronomy

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E. colona is a C4 annual summer grass which is troublesome to major summer annual and perennial crops. Due to recent complaints by the farmers, the objectives of the present study were to evaluate the efficacy of penoxsulam, profoxydim, cycloxydim, cyhalofop-butyl, florpyrauxifen-benzyl and glyphosate against six E. colona accessions, and also to evaluate the response of these accessions to different rates of glyphosate in a dose-response experiment. In the first experiment, herbicides were applied at their maximum recommended label rates, while in the dose-response experiment, glyphosate was applied at six doses corresponding to 0, 1/4X, 1/2X, X, 2X, and 4X of the recommended rate. The dry weight of the biotypes TH8 and TH7 treated with profoxydim was 66% and 68% of the untreated control, respectively. The efficacy of cyhalofop-butyl against three accessions was lower than 30%, while two accessions were susceptible to this herbicide. The efficacy of penoxsulam against the biotypes ET2 and ET4 was lower than 10%, while dry weight of FT5 and TH8 was only reduced by 23%–28% as compared to the control. Cycloxydim application provided control higher than 75% at 21 days after treatment (DAT) of three accessions, while the majority of E. colona accessions was adequately controlled by the application of florpyrauxifen-benzyl. The response of the different accessions to glyphosate varied. The results of the glyphosate dose-response experiment revealed that the GR50 values of the resistant E. colona accessions ET2 and ET4 were up to 1098 and 1220 g a.e. ha−1 of glyphosate, respectively, whereas the GR50 value of the susceptible accession (FT5) was only 98 g a.e. ha−1. The resistance indices of ET2 and ET4 were 12.4 and 11.2, respectively, indicating that they have already developed resistance to glyphosate. Three more accessions could be also of developing resistant to glyphosate. This is the first report of glyphosate resistance from E. colona accessions in Greece, with indications of multiple resistance also present. Further research is needed in order to evaluate the efficacy of several herbicides under different soil and climatic conditions, conduct baseline sensitivity studies, reveal the evolvement of resistance patterns to glyphosate from accessions of Echinochloa spp., and search for alternative options of weed management in annual and perennial crops due to the clear indications of multiple resistance situations.

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“…For instance, the allelopathic rice PI312777 can release allelochemicals into the soil and inhibit the growth of paddy weeds [24,27]. The allelopathic rice Huagan-3 can interfere with the growth of penoxsulam-resistant barnyardgrass through allelochemical-mediated root-root interaction [33]. In addition, decline of barnyardgrass root growth is due to shift in microbial diversity and community structure shaped by the root exudates of the allelopathic rice [26].…”

Section: Root Proliferation Response To Neighbouring Roots Of Allelopmentioning

confidence: 99%

“…This severity of the issue calls for immediate solutions and an investigation into the biological and ecological mechanisms of its competitiveness with rice. Fortunately, some varieties of O. sativa as PI312777 and Huagan-3 exhibit high allelopathic activity for paddy weeds and herbicide-resistant barnyardgrass [32,33]. Thus, results from root-mediated interactions between allelopathic rice and barnyardgrass enable us to consider this as a new mechanism of root recognition in plants.…”

Section: Introductionmentioning

confidence: 99%

Barnyardgrass Root Recognition Behaviour for Rice Allelopathy

2018

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Recent studies have demonstrated that the presence of belowground neighbours induces varied morphological and biochemical responses in plants. Plant allelopathic activity is elicited by the presence of competitor seedlings or competitor root exudates. However, it is unknown whether allelopathy also influences root recognition behaviour in weed-crop interaction. To assess barnyardgrass response to the presence of allelopathic rice roots, we conducted a greenhouse experiment of barnyardgrass-rice mixed culture, including barnyardgrass monoculture, barnyardgrass mixed with the allelopathic rice line PI312777 and barnyardgrass mixed with the nonallelopathic rice cultivar Liaojing-9. Our results showed that the presence of allelopathic rice roots enhanced root allocation and tissue density (RTD) of barnyardgrass, whereas it decreased root biomass, total root length, specific root length (SRL) and topological index (TI), compared to barnyardgrass grown in monoculture; moreover, there was a significant correlation of topological index with root foraging precision and competition. Therefore, the presence of allelopathic rice roots affected the barnyardgrass root morphology, nutrient foraging and competition, suggesting that allelopathy plays a key role in root recognition behaviour of barnyardgrass-rice competitive interaction.

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Interference of allelopathic rice with penoxsulam‐resistant barnyardgrass

Cited by 15 publications

References 42 publications

Recent advances in allelopathy for weed control: from knowledge to applications

Recent advances in allelopathy for weed control: from knowledge to applications

Efficacy of Different Herbicides on Echinochloa colona (L.) Link Control and the First Case of Its Glyphosate Resistance in Greece

Barnyardgrass Root Recognition Behaviour for Rice Allelopathy

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