Pest Management in Rice

Grayson, Ben; Green, M. B.; Copping, Len

doi:10.1007/978-94-009-0775-1

Cited by 12 publications

(1 citation statement)

References 11 publications

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“…Therefore, in addition to contamination of the rice nursery system by pathogen-infected seeds, infection with pathogens can occur during multiple processes of rice nursery management from seed disinfection through raising seedlings. Synthetic pesticides have often been used to control rice seedling diseases in conventional farming systems (Miyagi, 1990). However, rice seedling disease outbreaks can also be effectively suppressed in organic farming systems.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of microbial diversity and bacterial seedling disease‐suppressive activity in organic‐farmed and standardized commercial conventional soils for rice nursery cultivation

Takahashi

Matsushita

Ito

et al. 2018

Journal of Phytopathology

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The outbreak of rice plant diseases can be effectively suppressed in organic farming systems. However, the mechanisms of disease suppression by organic farming systems are not well understood. When Burkholderia‐infected rice seeds were sown and cultivated on nine organic‐farmed soils which were supplied by nine independent organic rice farmers or standardized commercial conventional soils, the emergence of bacterial seedling diseases was suppressed to equivalent degrees in nine organic‐farmed soils, whereas the diseases occurred in two commercial conventional soils. In any organic or commercial conventional soil sown with healthy rice seeds as a control, the diseases did not appear. Upon physicochemical analysis of the nine organic‐farmed soils, component common to these organic‐farmed soils seemed to not be directly associated with disease‐suppressive activity. However, microbiome analyses indicated that the bacterial population in these nine organic‐farmed soils was more diverse than those in commercial conventional soils. Intriguingly, the diverse bacterial population structures of organic‐farmed soils were preserved after irrigating and sowing rice seeds, but that of commercial conventional soils was clearly changed by them. Thus, organic‐farmed soils seem to maintain robust bacterial populations despite the irrigation and seedling growth. Indeed, pathogenic Burkholderia in infected rice seeds also did not proliferate in the seedling grown on organic‐farmed soils. Taken together, the common feature of organic‐farmed soils might be the correlation between bacterial seedling disease‐suppressive activity and higher robustness of the diversified microbiome.

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Section: Introductionmentioning

confidence: 99%

Comparative analysis of microbial diversity and bacterial seedling disease‐suppressive activity in organic‐farmed and standardized commercial conventional soils for rice nursery cultivation

Takahashi

Matsushita

Ito

et al. 2018

Journal of Phytopathology

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Melanin and chromoblastomycosis agents: Characterization, functions, and relation with antifungals

et al. 2021

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Melanins are a diverse group of dark pigments with similar properties. In fungi, the most studied is the dihydroxynaphtalene (DHN)‐melanin, present in several species including all the chromoblastomycosis agents, a chronic, disabling, and recalcitrant subcutaneous mycosis. It is synthesized in a pathway known as the pentaketide pathway, which has the agrochemical tricyclazole as an inhibitor, widely used in in vitro studies because it does not prevent the growth of fungi. There are different methodologies for qualitative and quantitative analyses of DHN‐melanin, which made it possible to discover its important structural and antioxidant functions, with melanin acting as a protective factor against the host's immune system. Also, it can interact with some of the main antifungals of medical interest, reducing its activity and the susceptibility of fungi to these agents. This review aims to discuss the aspects of DHN‐melanin, focusing on chromoblastomycosis, bringing the main findings of the published scientific studies, and highlighting the need for further research to understand this important fungal pathogenicity and a virulence factor.

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Acute toxicity of alpha-cypermethrin to guppy (Poecilia reticulata, Pallas, 1859)

2004

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Pest Management in Rice

Cited by 12 publications

References 11 publications

Comparative analysis of microbial diversity and bacterial seedling disease‐suppressive activity in organic‐farmed and standardized commercial conventional soils for rice nursery cultivation

Comparative analysis of microbial diversity and bacterial seedling disease‐suppressive activity in organic‐farmed and standardized commercial conventional soils for rice nursery cultivation

Melanin and chromoblastomycosis agents: Characterization, functions, and relation with antifungals

Acute toxicity of alpha-cypermethrin to guppy (Poecilia reticulata, Pallas, 1859)

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