Mangifera indica L.

Expression and enzymatic activity of phenylalanine ammonia-lyase and p-coumarate 3-hydroxylase in mango (Mangifera indica ‘Ataulfo’) during ripening

H. Palafox-Carlos, Contreras-Vergara, C. A., Muhlia-Almazán, A., Islas-Osuna, M. A., and González-Aguilar, G. A., Expression and enzymatic activity of phenylalanine ammonia-lyase and p-coumarate 3-hydroxylase in mango (Mangifera indica ‘Ataulfo’) during ripening, vol. 13, pp. 3850-3858, 2014.

Phenylalanine ammonia lyase (PAL) and p-coumarate 3-hydroxylase (C3H) are key enzymes in the phenylpropanoid pathway. The relative expression of PAL and C3H was evaluated in mango fruit cultivar ‘Ataulfo’ in four ripening stages (RS1, RS2, RS3, and RS4) by quantitative polymerase chain reaction. In addition, enzyme activity of PAL and C3H was determined in mango fruits during ripening. The PAL levels were downregulated at the RS2 and RS3 stages, while C3H levels were upregulated in fruits only at RS3.

Comparison of efficiency of distance measurement methodologies in mango (Mangifera indica) progenies based on physicochemical descriptors

E. O. S. Alves, Cerqueira-Silva, C. B. M., Souza, A. M., Santos, C. A. F., Neto, F. P. Lima, and Corrêa, R. X., Comparison of efficiency of distance measurement methodologies in mango (Mangifera indica) progenies based on physicochemical descriptors, vol. 11. pp. 591-596, 2012.

We investigated seven distance measures in a set of observations of physicochemical variables of mango (Mangifera indica) submitted to multivariate analyses (distance, projection and grouping). To estimate the distance measurements, five mango progeny (total of 25 genotypes) were analyzed, using six fruit physicochemical descriptors (fruit weight, equatorial diameter, longitudinal diameter, total soluble solids in °Brix, total titratable acidity, and pH).

Cloning and expression of ethylene receptor ERS1 at various developmental and ripening stages of mango fruit

C. A. Contreras-Vergara, Stephens-Camacho, N. A., Yepiz-Plascencia, G., González-Aguilar, G. A., Arvizu-Flores, A. A., Sanchez-Sanchez, E., and Islas-Osuna, M. A., Cloning and expression of ethylene receptor ERS1 at various developmental and ripening stages of mango fruit, vol. 11, pp. 4081-4092, 2012.

Ethylene induces characteristic ripening reactions in climacteric fruits through its binding to histidine-kinase (HK) receptors, activating the expression of ripening genes. Ethylene receptors have been found in Arabidopsis thaliana (Brassicaceae) and some fruits; number and expression patterns differ among species. In mango, only ethylene receptor ETR1 was known. We cloned ERS1 cDNA from mango, and evaluated the expression of Mi-ERS1 and Mi-ETR1 by qPCR in developmental and ripening stages of this fruit.

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