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Production of caffeine alkaloid by Claviceps sorghi Trop. Plant Pathol.
Bogo,Amauri; Mantle,Peter Gregory; Boff,Mari Inês C.; Amarante,Cassandro V. T. do.
The ergot disease of sorghum (Sorghum bicolor), caused by the fungus Claviceps sorghi, restricted to the Indian sub-continent, is a disease in which the pathogen infects the florets, colonizing the unfertilized ovaries. Losses are higher in hybrid seed production fields due to a higher susceptibility of male sterile lines. The sclerotia of C. sorghi have never been found to contain alkaloids with a tetracyclic ergoline ring system, which is normal in most ergot pathogens. In this work, we show that sclerotia of C. sorghi contain caffeine alkaloid and the ability to produce it in vitro.
Tipo: Info:eu-repo/semantics/article Palavras-chave: In vitro growth; Sclerotia; Alkaloid; Sorghum bicolor.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582003000400019
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In vitro establishment of Comanthera curralensis , "sempre viva" native of Chapada Diamantina - Bahia Ciência Rural
Albuquerque,Mara Márcia Sampaio; Brito,Alone Lima; Lima,Andressa Priscila Piancó Santos; Alvim,Bruno Freitas Matos; Santana,José Raniere Ferreira de.
ABSTRACT: The goal of the present study was to evaluate the germination, initial growth, and in vitro co-cultivation of Comanthera curralensis Moldenke, a "sempre viva" native of the Chapada Diamantina state of Bahia. Full strength (MS) and half-strength MS (MS1/2) growth media supplemented with two different sucrose concentrations (15 and 30g L-1) were tested for germination and initial plant growth. Three different plant densities were tested by in vitro culture (8, 10 and 12 plants per container). MS1/2 medium with 15g L-1 sucrose resulted in a higher percentage of germination and plant growth for the in vitro establishment of C. curralensis. The use of 12 plants per container is indicated for cost reduction in C. curralensis in vitro production.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Eriocaulaceae; Tissue culture; Germination; In vitro growth; Co-cultivation..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000600991
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