The development of herbicide-tolerant transgenic crops

Tsaftaris, Athanasios

doi:10.1016/0378-4290(95)00064-x

Cited by 33 publications

(14 citation statements)

References 25 publications

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“…The unbound fractions were collected in 0.1 M potassium phosphate buffer, and the bound fractions were eluted in 1 M NaOH and subjected to CS assay after dialysis against 0.1 M potassium phosphate buffer. reports on genetic transformation in sweet pepper (31,32) and also hot chili (33). As an extension of the present study, regulating the pungency levels in Capsicum cultivars by using csy1 gene would have wide applications in food, pharmaceutical, and allied industries.…”

Section: Discussionmentioning

confidence: 89%

RETRACTED: Characterization of capsaicin synthase and identification of its gene ( csy1 ) for pungency factor capsaicin in pepper ( Capsicum sp.)

Prasad

Kumar

Gururaj

et al. 2006

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

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Section: Discussionmentioning

confidence: 89%

RETRACTED: Characterization of capsaicin synthase and identification of its gene ( csy1 ) for pungency factor capsaicin in pepper ( Capsicum sp.)

Prasad

Kumar

Gururaj

et al. 2006

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

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“…The engineering of herbicide tolerance in crops has been successful (Mazur and Falco 1989, Tsaftaris 1996) and herbicide‐tolerant crops account for a significant percentage of seed planted in many regions. A common method for the engineering of herbicide tolerance relies on the transgenic expression of enzymes that confer herbicide tolerance (Comai et al 1985).…”

Section: Discussionmentioning

confidence: 99%

Thermal dependence of enzyme function and inhibition; implications for, herbicide efficacy and tolerance

Mahan¹,

Dotray

Light

2004

Physiologia Plantarum

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Environmental temperature is a critical factor in the lives of almost all organisms. Plants experience periods of thermal stress related to seasonal patterns of temperature and periodic water deficits. Within the range of non-lethal temperatures, there are a number of thermal effects on metabolism that are a result of the thermal dependence of enzymes. The thermal dependence of enzyme kinetic parameters was used to predict that the efficacy of the herbicide pyrithiobac on Palmer amaranth would be reduced at temperatures outside a 20-34 degrees C thermal application range. This prediction is validated in a controlled environment study described in this paper. Palmer amaranth was grown for 16 days in growth chambers with 34/18 degrees C day/night temperature regime. Pyrithiobac was applied to plants at 18, 27 or 40 degrees C. After 1 h at the application temperatures the plants were returned to the 34/18 degrees C regime for 14 days and post-application biomass accumulation (efficacy) was determined. Dry weight accumulation, as a percentage of untreated controls, was 25, 2.5 and 70% for 18, 27 and 40 degrees C application temperatures. Pyrithiobac efficacy was highest for the application within the thermal application range and significantly reduced at temperatures above and below. The validation of the earlier prediction suggests that temperature-related kinetic limitations on herbicide efficacy may also occur in plants with bioengineered herbicide resistance based on herbicide metabolism. The theoretical aspects of such thermal limitations on herbicide resistance mechanisms are discussed.

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“…A resistência do algodoeiro ao amonioglufosinate foi obtida por meio da inserção de gene isolado a partir de Streptomyces hygroscopicus, que, quando expresso, é responsável pela codificação da enzima fosfinotricina acetil transferase, a qual converte o amonioglufosinate em derivados inativos (Tsaftaris, 1996). A elevada seletividade que o amonioglufosinate apresenta quando aplicado nos cultivares de algodoeiro transgênicos Liberty Link (LL ® ) é atribuída à sua rápida metabolização em compostos inativos (Everman et al, 2009), possibilitando que esses cultivares tolerem uma ou mais aplicações desse herbicida (Braz et al, 2012).…”

Section: Introductionunclassified

Seletividade do Clomazone no Manejo Químico de Plantas Daninhas da Cultura do Algodão LL(r)

et al. 2015

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, e BRUGNERA, P. 6 RESUMO -O amonio-glufosinate é um herbicida de amplo espectro de controle de plantas daninhas, porém não apresenta controle residual no solo, o que limita sua utilidade quando usado isoladamente na cultura do algodão, havendo a necessidade de combinar diferentes herbicidas em mais de uma modalidade de aplicação. O objetivo deste trabalho foi avaliar a seletividade de diferentes sistemas de controle químico de plantas daninhas contendo clomazone na cultura do algodão LL®. As misturas triplas em pré-emergência apresentaram maior potencial de redução no porte do algodoeiro. Recomenda-se utilizar misturas de dois herbicidas em pré-emergência na cultura do algodão, com aplicação de S-metolachlor em over the top, seguido de duas aplicações em pós-emergência de amonio-glufosinate. Podendo-se inclusive utilizar pyrithiobac-sodium na primeira aplicação em pós-emergência. Palavras-chave:Gossypium hirsutum, modalidades de aplicação, mistura em tanque, culturas geneticamente modificadas. ABSTRACT -The ammonium-glufosinate is an herbicide with broad spectrum of weed control, but it has no residual control in the soil, which limits its usefulness when used alone in cotton crop

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The development of herbicide-tolerant transgenic crops

Cited by 33 publications

References 25 publications

RETRACTED: Characterization of capsaicin synthase and identification of its gene ( csy1 ) for pungency factor capsaicin in pepper ( Capsicum sp.)

RETRACTED: Characterization of capsaicin synthase and identification of its gene ( csy1 ) for pungency factor capsaicin in pepper ( Capsicum sp.)

Thermal dependence of enzyme function and inhibition; implications for, herbicide efficacy and tolerance

Seletividade do Clomazone no Manejo Químico de Plantas Daninhas da Cultura do Algodão LL(r)

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