Allelopathic and autotoxicity effects of barley (Hordeum vulgare L. ssp. vulgare) root exudates

Bouhaouel, Imen; Gfeller, Aurélie; Fauconnier, Marie‐Laure; Rezgui, S.; Amara, Hajer Slim; Jardin, Patrick du

doi:10.1007/s10526-014-9634-3

Cited by 36 publications

(42 citation statements)

References 43 publications

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“…Although there are many studies examining allelopathic effects of plant root exudates on weeds germination and seedling growth [12][13][14][15], very few studies investigating the physiological and biochemical parameters. However, these studies are very important for understanding the mechanism of influence.…”

Section: Introductionmentioning

confidence: 99%

The Allelopathic Effects of Sunflower and Wheat Root Exudates on Sinapis arvensis and Sinapis alba

Ünal¹,

Bayram²

2019

Phyton

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In this study, we aimed to investigate the allelopathic effects of sunflower and wheat root exudates on the common weeds such as wild mustard and white mustard in our region. The root exudates which were obtained by soaking 8 weeks old sunflower and wheat seedlings (20 or 40 seedlings) in 100 mL of distilled water for 3 days were applied to the leaves of wild mustard and white mustard. In order to compare the allelopathic effect, the recommended dose (1 g.da -1 ) and twice the recommended dose (2 g.da -1 ) of Gromstor (Tribenuron-methyl), a herbicide preferred by farmers for the chemical control of these weeds was also applied. The allelopathy was performed for wild mustard and white mustard seedlings by the measurement of different physiological and biochemical parameters, such as chlorophyll a, chlorophyll b, total chlorophyll, carotenoid, proline, total protein amounts and superoxide dismutase enzyme activity. The amounts of total chl and carotenoid in wild mustard leaves decreased in all treatment groups compared to control. The highest decrease in total chl (50.93%) and carotenoid (46.69%) was oberved in the treatment of 40 wheat seedlings. 100 mL -1 distilled water. In the white mustard leaves, the amount of total chl in all treatment groups except the treatment group of Gromstor 2 g.da -1 and carotenoid in all treatment groups increased compared to the control. The highest increases again were observed in 40 wheat seedlings. 100 mL -1 distilled water treatment. The proline amounts in wild mustard and white mustard increased in all treatment groups. The highest increase was observed for the treatment of 20 wheat seedlings. 100 mL -1 distilled water in wild mustard (459.69%) and 40 sunflower seedlings. 100 mL -1 distilled water in white mustard plant (104.70%). In superoxide dismutase enzyme activities, treatments decreased activity except treatment of 40 sunflower seedling root exudate in wild mustard, while increased activity outside commercial herbicide treatment in white mustard. The results showed that sunflower and wheat root exudates have allelopathic effects on wild mustard and white mustard weeds. It is thought that the study will be a reference for new studies that will enable the use of plant root exudates as bioherbicides or foliar fertilizers and will contribute to the fight against weeds in organic agriculture. Materials and Methods MaterialsThe wild mustard (Sinapis arvensis L.) seeds collected from the fields in Imamoglu district of Adana province were assessed according to the Flora of Turkey and the East Aegean Islands [16]. The white mustard (Sinapis alba L.) seeds were purchased from Mersin Kemal Cuce Tarim Transport Food Construction Trade Industry Limited Company. The seeds of Sems sunflower (Helianthus annuus L.) and Sarıbasak wheat (Triticum aestivum L.) were obtained from the Eastern Mediterranean Agricultural Research Institute. All chemicals used in the study were purchased from Sigma-Aldrich and Merck companies. Obtaining the Root ExudatesThe sunflower and wheat root exudates were...

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Section: Introductionmentioning

confidence: 99%

The Allelopathic Effects of Sunflower and Wheat Root Exudates on Sinapis arvensis and Sinapis alba

Ünal¹,

Bayram²

2019

Phyton

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“…However, our previous study has indicated that R. glutinosa consecutive monoculture did not lead to decreased soil organic matter and available nutrients [ 7 ]. Many studies have indicated that plants could produce toxic compounds that inhibit their own growth and reproduction [ 8 , 9 ]. For example, allelochemicals and/or autotoxic compounds such as β-cembrenediol, Di-n-hexyl Phthalate, and bis(2-propylheptyl) phthalate, which significantly reduce seedling growth, were found in flue-cured tobacco [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Barcoded Pyrosequencing Reveals a Shift in the Bacterial Community in the Rhizosphere and Rhizoplane of Rehmannia glutinosa under Consecutive Monoculture

Chen

Xiao

et al. 2018

IJMS

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The production and quality of Rehmannia glutinosa can be dramatically reduced by replant disease under consecutive monoculture. The root-associated microbiome, also known as the second genome of the plant, was investigated to understand its impact on plant health. Culture-dependent and culture-independent pyrosequencing analysis was applied to assess the shifts in soil bacterial communities in the rhizosphere and rhizoplane under consecutive monoculture. The results show that the root-associated microbiome (including rhizosphere and rhizoplane microbiomes) was significantly impacted by rhizocompartments and consecutive monoculture. Consecutive monoculture of R. glutinosa led to a significant decline in the relative abundance of the phyla Firmicutes and Actinobacteria in the rhizosphere and rhizoplane. Furthermore, the families Flavobacteriaceae, Sphingomonadaceae, and Xanthomonadaceae enriched while Pseudomonadaceae, Bacillaceae, and Micrococcaceae decreased under consecutive monoculture. At the genus level, Pseudomonas, Bacillus, and Arthrobacter were prevalent in the newly planted soil, which decreased in consecutive monocultured soils. Besides, culture-dependent analysis confirmed the widespread presence of Pseudomonas spp. and Bacillus spp. in newly planted soil and their strong antagonistic activities against fungal pathogens. In conclusion, R. glutinosa monoculture resulted in distinct root-associated microbiome variation with a reduction in the abundance of beneficial microbes, which might contribute to the declined soil suppressiveness to fungal pathogens in the monoculture regime.

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“…The allelopathic impact of plant root exudates results in the "favouritism" of representatives of certain species, and the exclusion of the species currently inhabiting a particular ecosystem (Mazzoleni et al 2007). The effects of the autotoxic impact of phenolic compounds have been demonstrated for many plant species, such as maize (Zea mays L.) (Ahmad and Bano 2013), barley (Hordeum vulgare L.) (Bouhaouel et al 2015), wheat (Triticum aestivum L.) (Wu et al 2008), and alfalfa (Medicago sativa L.) (Sołtys et al 2010). Even small amounts of allelochemical substances may have a signifi cant effect on the structure and functioning of a plant community (Djurdjević et al 2004(Djurdjević et al , 2012.…”

Section: Introductionmentioning

confidence: 99%

Content of phenolic compounds in soils originating from two long-term fertilization experiments

Sadej

Żołnowski

Marczuk

2016

Archives of Environmental Protection

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Abstract:The objective of the study was to compare the impact of three systems of multiannual fertilization applied in two long-term fi eld experiments on the content of phenolic compounds in the soil. In the study, both natural (manure, slurry) and mineral (NPK) fertilizers were used, along with combined, organic-and-mineral fertilization. Experiment I was established in 1972 on grey brown podzolic soil; experiment II, in 1973 on brown soil. In both experiments crops were cultivated in a 7-year rotation, with a 75% share of cereals. The experimental samples were taken from the top layer of soil after 36 (experiment I) and 35 (experiment II) years following the establishment of the experiments. It was demonstrated that the presence of phenolic compounds in the soils was signifi cantly dependent on the contents of organic C and total N, type of soil and the type and dose of used fertilizers. In grey brown podzolic soil, the content of total phenolic compounds was at a lower level than the content found in brown soil. Multiannual fertilization contributed to an increase in the content of total phenolic compounds in relation to the values obtained in control objects, which was particularly refl ected in the soil originating from objects fertilized with slurry applied at a dose being equivalent to manure in terms of the amount of introduced organic carbon. The percentage of water-soluble phenols in the total content of these compounds in grey brown podzolic soil was at the level of 18.4%, while in brown soil it amounted to 29.1%.

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Allelopathic and autotoxicity effects of barley (Hordeum vulgare L. ssp. vulgare) root exudates

Cited by 36 publications

References 43 publications

The Allelopathic Effects of Sunflower and Wheat Root Exudates on Sinapis arvensis and Sinapis alba

The Allelopathic Effects of Sunflower and Wheat Root Exudates on Sinapis arvensis and Sinapis alba

Barcoded Pyrosequencing Reveals a Shift in the Bacterial Community in the Rhizosphere and Rhizoplane of Rehmannia glutinosa under Consecutive Monoculture

Content of phenolic compounds in soils originating from two long-term fertilization experiments

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