Phenylpropanoid pathway is potentiated by silicon in the roots of banana plants during the infection process of Fusarium oxysporum f. sp. cubense

Phytopathology
Alessandro Antonio FortunatoFabrício A Rodrigues

Abstract

Fusarium wilt, caused by Fusarium oxysporum f. sp. cubense, is a disease that causes large reductions in banana yield worldwide. Considering the importance of silicon (Si) to potentiate the resistance of several plant species to pathogen infection, this study aimed to investigate, at the histochemical level, whether this element could enhance the production of phenolics on the roots of banana plants in response to F. oxysporum f. sp. cubense infection. Plants of cultivar Maçã, which is susceptible to F. oxysporum f. sp. cubense, were grown in plastic pots amended with 0 (-Si) or 0.39 g of Si (+Si) per kilogram of soil and inoculated with race 1 of F. oxysporum f. sp. cubense. The root Si concentration was increased by 35.6% for +Si plants in comparison to the -Si plants, which contributed to a 27% reduction in the symptoms of Fusarium wilt on roots. There was an absence of fluorescence for the root sections of the -Si plants treated with the Neu and Wilson's reagents. By contrast, for the root sections obtained from the +Si plants treated with Neu's reagent, strong yellow-orange fluorescence was observed in the phloem, and lemon-yellow fluorescence was observed in the sclerenchyma and metaxylem vessels, indicating the presence ...Continue Reading

References

Mar 22, 2000·Journal of Agricultural and Food Chemistry·K Kanazawa, H Sakakibara
Jul 4, 2006·Plant Physiology and Biochemistry : PPB·Nathalie WuytsRony Swennen
Oct 24, 2008·Phytopathology·Fabrício A RodriguesRichard R Bélanger
Oct 24, 2008·Phytopathology·Kosala RanathungeMark A Bernards
Dec 22, 2010·Journal of Experimental Botany·Alexander T FleckManfred K Schenk
Jul 13, 2012·Phytopathology·Alessandro Antonio FortunatoKelly Juliane Teles do Nascimento

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Citations

Aug 4, 2015·Phytopathology·Leonardo AraujoFabricio Rodrigues
Aug 24, 2016·Frontiers in Plant Science·Artur CondeJosé Moutinho-Pereira
Feb 14, 2018·Annals of Botany·Adam FrewGeoff M Gurr
May 16, 2017·Annual Review of Phytopathology·Daniel DebonaLawrence E Datnoff
Apr 27, 2019·Frontiers in Microbiology·Giovanni BubiciJesús Mercado-Blanco
May 31, 2021·Plant Physiology and Biochemistry : PPB·Golam Jalal Ahammed, Youxin Yang

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