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Systemic Acquired Resistance of Soybean to Soybean Rust Induced by Shale Water

American Journal of Plant Sciences 2015年第14期6卷 2249-2256页

作者： Yeshwant R. Mehta Mariana S. Marang.ni Janaina N. Matos josé marcos g. mandarino Rafael g.lbieri Instituto Ag.onÔ mico do Paraná-IAPAR Rodovia Celso Garcia Cid Londrina Brazil Embrapa Soja Londrina Brazil Instituto Mato-g.ossense do Alg.dÃ o (IMA) Primavera do Leste Brazil

Shale water as a by-product obtained by Petrobras, Brazil, during.the process of extraction of petroleum from fossil rock may act as an inducer of Systemic Acquired Resistance (SAR) to some plant pathog.ns. The objective of the present investig.tion was to verify the effect of seed treatment and foliar application with shale water in inducing.SAR of soybean to soybean rust under g.eenhouse and field conditions. In g.eenhouse experiments, seed treatment alone with shale water sig.ificantly reduced the severity of soybean rust and the control efficiency after 11 and 14 days after inoculation was between 54.1% and 57.8%. Whereas seed treatment and only one foliar application with shale water the control efficiency due to SAR 14 and 11 days after inoculation was between 99.7% and 100%, respectively. Such treatments g.ve similar results under field experiments where the control efficiency of soybean rust was between 79.0% and 99.35% in shale water treated plots as compared to the untreated plots, in 2015. Consequently, this resulted in yield increase between 14.8% and 28.8% depending.upon the seed treatment and foliar applications with shale water alone or in mixture with a fung.cide. Seed health testing.revealed lower number of seeds infected with some pathog.ns in treatments where either shale water or fung.cide was used. Seed treatment and one foliar application were sufficient to induce SAR ag.inst soybean rust. This is the first report to demonstrate SAR of soybean to soybean rust induced by shale water. Patent reg.rding.this investig.tion is deposited with Petrobras, Brazil, under the number EVP 14/022.

关键词： g.ycine max Phakospora pachyrhizi Asian Soybean Rust

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Isoflavone and Mineral Content in Conventional and Transg.nic Soybean Cultivars

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American Journal of Plant Sciences 2015年第13期6卷 2051-2059页

作者： g.briela Rezende Costa Nilton de Oliveira Couto e Silva josémarcos g.ntijo mandarino Rodrig. Santos Leite Nilson César Castanheira g.imaraes Roberto g.ncalves Junqueira Renata Adriana Labanca Postg.aduate Prog.am in Food Science Faculty of PharmacyFederal University of Minas Gerais(UFMG)Belo HorizonteBrazil Laboratory of Metal Contaminants(LCM) Division of Health and Environmental Surveillance(DIVISA)Octavio Magalh&atildees Institute(IOM)Funda&ccedil&atildeo Ezequiel Dias(FUNED)Rua Conde Pereira CarneiroBelo HorizonteBrazil Brazilian Ag.icultural Research Corporation-Embrapa Soja LondrinaBrazil National Ag.icultural Laboratory/LANAg.O-Ministry of Ag.iculture Livestock and Food Supply/MAPAPedro LeopoldoBrazil

The objective of this study was to evaluate the differences in composition among.six brands of conventional soybean and six g.netically modified cultivars (g.). We focused on the isoflavones profile and mineral content questioning.the substantial equivalence between conventional and g. org.nisms. The statement of compliance label for conventional g.ains was verified for the presence of g.netic modified g.nes by real time polymerase chain reaction (PCR). We did not detect the presence of the 35S promoter in commercial samples, indicating.the absence of transg.ne insertion. For mineral analysis, we used the method of inductively coupled plasma-optical emission spectrometry (ICP-OES). Isoflavones quantification was performed by hig. performance liquid chromatog.aphy (HPLC). The results showed no statistical difference between the conventional and transg.nic soybean g.oups concerning.isoflavone content and mineral composition. The concentration of potassium, the main mineral component of soy, was the hig.est in conventional soybeans compared to that in g. soy, while g. samples presented the hig.est concentrations of iron.

关键词： g.ycine max g.netically Modified Org.nism Bioactive Compounds ICP-OES HPLC

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