Role of hydroxamic acids in the resistance of cereals to aphids

Argandoña, Víctor H.; Luza, Juvenal G.; Niemeyer, Hermann M.; Corcuera, Luís J.

doi:10.1016/s0031-9422(00)83790-5

Cited by 163 publications

(70 citation statements)

References 12 publications

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“…Higher DIMBOA concentration in flag leaves in comparison to ears at anthesis was consistent with the higher MRGR of S. avenae in ears than in flag leaves (Nicol and Wratten 1997). Besides that, the susceptibility of three grass species to Metopolophium dirhodum is related to the presence or absence of those Table 1 where the means and LSD (5%) for statistical comparison are displayed acids (Argandon˜a et al 1980), DIMBOA was shown to deter feeding by R. padi and to reduce BYDV transmission to wheat (Givovich and Niemeyer 1991) and effects of hydroxamic acids in aphid performance was also reported by others (Niemeyer et al 1989;Bravo and Copaja 2002). When consid-ering only BRS Timbau´va and BRS Guabiju, two of the wheat genotypes evaluated here, it is clear that an association exist between the DIMBOA and the plant resistance against S. avenae and R. padi.…”

Section: Discussionsupporting

confidence: 69%

DIMBOA levels in hexaploid Brazilian wheat are not associated with antibiosis against the cereal aphids Rhopalosiphum padi and Sitobion avenae

Pereira

Sarria

Powers

et al. 2017

Theor. Exp. Plant Physiol.

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UK variety used as reference. Bioassays were conducted to evaluate the development and fecundity of both aphids when grown on the wheat genotypes. Although BRS Guabiju and BRS Timbau´va were among the genotypes showing the highest susceptibility and resistance, respectively, against both aphid species, no correlation could be found between DIMBOA levels and antibiosis effects. The cultivar BRS 327 was among the genotypes showing lower intrinsic rate of population increase for the two aphid species. Elucidating the role of secondary metabolites in plant resistance to aphids and the characterization of the genotypes that allowed reduced development of R. padi and S. avenae are important steps to achieve a better natural resistance in hexaploid Brazilian wheat.

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Section: Discussionsupporting

confidence: 69%

DIMBOA levels in hexaploid Brazilian wheat are not associated with antibiosis against the cereal aphids Rhopalosiphum padi and Sitobion avenae

Pereira

Sarria

Powers

et al. 2017

Theor. Exp. Plant Physiol.

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“…1) of DIMBOA. Our earlier work (20) has demonstrated that maize converts [2][3][4][5][6][7][8][9][10][11][12][13][14] Cindole into 14 C-DIMBOA, and that perdeuterated indole is converted by maize into DIMBOA that is deuterated both in the benzene ring and at the hemiacetal carbon of the heterocyclic ring. These results demonstrate that the DIMBOA biosynthetic pathway utilizes indole as a direct intermediate and raise the question of whether a specific indole synthase exists for this pathway or whether indole is diverted from the tryptophan biosynthetic pathway.…”

mentioning

confidence: 99%

A deletion in an indole synthase gene is responsible for the DIMBOA-deficient phenotype ofbxbx maize

Melanson

Chilton

Masters-Moore

et al. 1997

Proc. Natl. Acad. Sci. U.S.A.

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The biosynthesis of DIMBOA, a pesticidal secondary metabolite of maize, branches off the tryptophan pathway. We have previously demonstrated that indole is the last intermediate common to both the tryptophan and hydroxamic acid pathways. The earliest discovered mutant in the DIMBOA pathway, bxbx (benzoxazineless), is deficient in the production of DIMBOA and related compounds. This paper presents evidence We demonstrate that the TSA gene has sustained a 924-bp deletion in bxbx compared with its counterpart in wild-type maize. We report that the TSA gene maps to the same location as the bxbx mutation, on the short arm of chromosome 4. We present evidence that the very early and very high level of expression of TSA corresponds to the timing and level of DIMBOA biosynthesis but is strikingly different from the expression of the maize tryptophan synthase ␤ (TSB) genes. We show that feeding indole to bxbx seedlings restores their ability to synthesize DIMBOA. We conclude that the maize enzyme initially named tryptophan synthase ␣ in fact is a DIMBOA biosynthetic enzyme, and we propose that it be renamed indole synthase. This work confirms and enlarges upon the findings of Frey et al.

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“…Desde então, novas atividades biológicas foram descobertas: resistência de milho à Ostrinia nubilis (Nair et al, 1990) e afideos (Argandona et al, 1980), resistência à fungos e bactérias Woodward et al, 1978), efeitos alelopáticos (Barnes & Putnam, 1987), e detoxificação de herbicidas (Hamilton, 1964) e pesticidas (Niemeyer, 1988). Estas estão entre as mais importantes atividades biológicas dos ácidos hidroxâmicos.…”

Section: Allelopathic Potential Of 2-benzoxazolin One (Boa) and Its Iunclassified

“…Estas estão entre as mais importantes atividades biológicas dos ácidos hidroxâmicos. Embora este grupo de compostos tenha sido extensivamente estudado, a maioria dos trabalhos sobre interações planta x planta e planta x fungos e insetos tratam da forma glucosídica ou de seus ácidos hidroxâmicos; poucos relatam sobre benzoxazolinonas (Argandona et al, 1980;Tipton & Buell, 1970;Quiroz, 1989;Woodward et al, 1978;Zuniga et al, 1983).…”

Section: Allelopathic Potential Of 2-benzoxazolin One (Boa) and Its Iunclassified

Potencial alelopático de 2-benzoxazolinona (boa) e sua interação com atrazine no crescimento de plantas

Souza

Einhellig

1994

Planta daninha

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Dois experimentos de laboratório foram conduzidos na Universidade de South Dakota, Vemillion, SD, EUA, em 1990, para determinar os efeitos do ácido hidroxâmico benzoxazolinona (BOA), do herbicida atrazine e de suas misturas sobre o crescimento e teor de clorofila de lentilha dágua (Lemna minor). BOA na concentração de 0,5 mM foi aplicado em combinação com atrazine a 0,001 e 0,005 mM em caixas plásticas com 24 células de 2,5 ml, contendo 3 frondes de lentilha dágua em solução nutritiva. BOA e atrazine, aplicados isoladamente, inibiram o número, o peso sêco e o teor de clorofila. Atrazine apresentou uma maior ação inibitória que BOA. A combinação BOA (0,05 mM) e atrazine à 0,001 mM foi antagonística. A inibição induzida pelo atrazine a 0,001 mM foi, em parte, neutralizada, porém, com a dose 0,005 mM a sua ação inibitória não foi alterada.

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Role of hydroxamic acids in the resistance of cereals to aphids

Cited by 163 publications

References 12 publications

DIMBOA levels in hexaploid Brazilian wheat are not associated with antibiosis against the cereal aphids Rhopalosiphum padi and Sitobion avenae

DIMBOA levels in hexaploid Brazilian wheat are not associated with antibiosis against the cereal aphids Rhopalosiphum padi and Sitobion avenae

A deletion in an indole synthase gene is responsible for the DIMBOA-deficient phenotype ofbxbx maize

Potencial alelopático de 2-benzoxazolinona (boa) e sua interação com atrazine no crescimento de plantas

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