Expression of Ascorbic Acid Oxidase in Zucchini Squash (Cucurbita pepo L.)

Activity of b-Galactosidase and Polygalacturonase in Zucchini Squash (Cucurbita pepo L.) Stored at Low Temperatures

René Renato Balandrán-Quintana1, Ana María Mendoza-Wilson2, Irasema Vargas-Arispuro2 and Miguel Angel Martínez-Téllez2* Universidad Autónoma de Chihuahua, Facultad de Ciencias Químicas, Ciudad Universitaria s/n, A.P. 1542-C Chihuahua, Chihuahua, México Centro de Investigación en Alimentación y Desarrollo, A.C., Coordinación de Tecnología de Alimentos de Origen Vegetal, Km 0.6, Carretera a La Vi...

Localization of ascorbic acid, ascorbic acid oxidase, and glutathione in roots of Cucurbita maxima L.

To understand the function of ascorbic acid (ASC) in root development, the distribution of ASC, ASC oxidase, and glutathione (GSH) were investigated in cells and tissues of the root apex of Cucubita maxima. ASC was regularly distributed in the cytosol of almost all root cells, with the exception of quiescent centre (QC) cells. ASC also occurred at the surface of the nuclear membrane and corresp...

l-Ornithine:2-Oxoacid Aminotransferase from Squash (Cucurbita pepo, L.) Cotyledons: Purification and Properties.

ORNITHINE: 2-oxoacid aminotransferase (EC 2.6.1.13) has been purified over 400-fold with a total recovery of 14% from acetone powders of cotyledons of germinating squash (Cucurbita pepo, L.) seedlings. The pH optimum of the transamination between l-ornithine and alpha-ketoglutarate is 8 and the Michaelis constants are 4.7 mm and 6.3 mm, respectively. The enzyme has a molecular weight of 48,000 ...

Draft of Zucchini (Cucurbita pepo L.) Proteome: A Resource for Genetic and Genomic Studies

Movement of Soil-Applied Imidacloprid and Thiamethoxam into Nectar and Pollen of Squash (Cucurbita pepo)

There has been recent interest in the threat to bees posed by the use of systemic insecticides. One concern is that systemic insecticides may translocate from the soil into pollen and nectar of plants, where they would be ingested by pollinators. This paper reports on the movement of two such systemic neonicotinoid insecticides, imidacloprid and thiamethoxam, into the pollen and nectar of flowe...