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Seven Things We Think We Know about Auxin Transport

Molecular Plant 2011年第3期4卷 487-504页

作者： Wendy Ann Peer Joshua J. Blakeslee Haibing Yang Angus S. Murphy Department of Horticulture 625 Agriculture Mall Drive Purdue University West Lafayette IN 47907 USA Department of Horticulture and Crop Science Ohio Agricultural Researd and Development Center1680 Madison Avenue The Ohio State UniversityWooster OH 44691 USA

Polar transport of the phytohormone auxin and the establishment of localized auxin maxima regulate em- bryonic development, stem cell maintenance, root and shoot architecture, and tropic growth responses. The past decade has been marked by dramatic progress in efforts to elucidate the complex mechanisms by which auxin transport regulates plant growth. As the understanding of auxin transport regulation has been increasingly elaborated, it has become clear that this process is involved in almost all plant growth and environmental responses in some way. However, we still lack information about some basic aspects of this fundamental regulatory mechanism. In this review, we present what we know （or what we think we know） and what we do not know about seven auxin-regulated processes. We discuss the role of auxin transport in gravitropism in primary and lateral roots, phototropism, shoot branching, leaf expansion, and venation. We also discuss the auxin reflux/fountain model at the root tip, flavonoid modulation of auxin transport processes, and outstanding aspects of post-translational regulation of auxin transporters. This discussion is not meant to be exhaustive, but highlights areas in which generally held assumptions require more substantive validation.

关键词： Auxin transport ABCB AUX1 PIN phototropism gravitropism fountain model shoot branching leaf expansion venation flavonoids.

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Characterization of Grugru Palm Pulp for Food Applications

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Journal of Food Science and Engineering 2013年第2期3卷 107-112页

作者： Dalany Menezes Oliveira Janaina de Paula da Costa Edmar Clemente Jose Maria Correia da Costa Center of Agricultural Sciences State University of Maring6 Postgraduate degree in food Science Avenida Colombo MaringaParana 5790 Brazil Department of Food Technology Federal University of Ceara Avenida Mister Hull 2977 Alagadigo Campus do Pici Bloco 858Fortaleza Ceara Brazil Department of Chemistry State University of Maringa Avenida Colombo Maringa Paran6 5790 Brazil

Studies are needed to know the grugru palm （Acrocomia aculeata） potential for food industry. This study aimed to characterize physicochemical quality and minerals in the mesocarp （pulp） of grugru palm, Grugru palm fruits from NE Brazil production area were collected and analyzed. The determinations included： respiratory rate, sugars, soluble solids, pH, titratable acidity, humidity, water activity （aw）, ashes, protein, lipids, total phenolics, total carotenoids, vitamin C, color and minerals. The fruit respiration rate was 74.45 mL CO2 kg-1 h1. High levels were found for sugars, soluble solids, pH, aw, lipids and carotenoids; however, the pulp showed low acidity, moisture and ashes. The values found for lipids, minerals and vitamin C are equivalent to those observed in the literature. The grugru palm fruit has a high rate of respiration, which turns necessary the use of conservation techniques and methods. The grugru palm fruit pulp shows physical quality parameters attractive to the consumer, physicochemical quality and nutritive composition which can be considered for food ingredients and alternative source of ingredient for supplementation of diet food for needy population.

关键词： Grugru palm (Acrocomia aculeata) mesocarp minerals carotenoids flavonoids.

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Carotenoids,Polyphenols and Antioxidant Activity Evaluation in Stone-Grinded Wheat Semolina

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Journal of Health Science 2018年第6期6卷 432-438页

作者： Pamela Vignolini Silvia Urciuoli Daniela Heimler Annalisa Romani Laboratorio Phytolab DiSIADipartimento di StatisticaInformaticaApplicazioni“Giuseppe Parenti”Universitàdegli Studi di FirenzePolo Scientifico e Tecnologico via U.Schiff6-Sesto Fiorentino(FI)50019Italy PIN S.c.r.l.-Servizi Didattici e Scientifici per l’Universitàdi Firenze Piazza G.Ciardi25Prato 59100Italy

The functional quality of stone grinded grain semolina,also related to the presence of secondary antioxidant metabolites,was evaluated by HPLC/DAD(high performance liquid chromatography/diode array detection)analysis and by in vitro spectrophotometric *** total polyphenol content was determined with the Folin-Ciocalteau spectrophotometric method,while carotenoid content evaluation was performed by HPLC/DAD chromatographic analysis:the presence of lutein as the main compound ranging between 75 and 78.5%of total carotenoids was pointed *** chromatographic analyses identified the presence of an indolacetic acid derivative whose content changed between 0.097 and 0.108 mg/g.

关键词： HPLC/DAD lutein Folin-Ciocalteau flavonoids.

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