Comparison of morphological structures in bean root and hypocotyl

Authors

  • Edwin Javier Barrios-Gómez Campo Experimental Zacatepec, INIFAP. Carretera Zacatepec-Galeana, km 0.5 Zacatepec, Mor. México. C. P. 62780. Tel. 01 734 3430230. Fax. 01 734 3433820
  • Cándido López-Castañeda Botánica, Colegio de Postgraduados. Carretera México-Texcoco km 36.5 Montecillo, Texcoco, Estado de México. C. P. 56230. Tel. 01 595 9520200. Ext. 1587, 1318 y 1551
  • Josué Kohashi-Shibata Botánica, Colegio de Postgraduados. Carretera México-Texcoco km 36.5 Montecillo, Texcoco, Estado de México. C. P. 56230. Tel. 01 595 9520200. Ext. 1587, 1318 y 1551
  • Jorge Alberto Acosta-Gallegos Campo Experimental Bajío, INIFAP, carretera Celaya-San Miguel de Allende km 6.5, Col. Roque, Celaya, Guanajuato, México. C. P. 38110. Tel. 01 461 6115326. Ext. 164
  • Salvador Miranda-Colín Genética y Botánica, Colegio de Postgraduados. Carretera México-Texcoco km 36.5 Montecillo, Texcoco, Estado de México. C. P. 56230. Tel. 01 595 9520200. Ext. 1587, 1318 y 1551
  • Jaime Canul Ku Campo Experimental Zacatepec, INIFAP. Carretera Zacatepec-Galeana, km 0.5 Zacatepec, Mor. México. C. P. 62780. Tel. 01 734 3430230. Fax. 01 734 3433820
  • Netzahualcóyotl Mayek-Pérez Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Boulevard del Maestro, s/n Esquina Elías Piña, Colonia Narciso Mendoza, Reynosa, Tamaulipas, México. C. P. 77810. Tel. 01 899 9243627. Ext. 7712 y 7742

DOI:

https://doi.org/10.29312/remexca.v3i4.1420

Keywords:

Phaseolus vulgaris L., root development, root and hypocotyl morphology, vascular transport

Abstract

In 2006 an experiment was conducted with the aim to determining the differences in development of contrasting varieties of bean (Phaseolus vulgaris L.) root and shoot of the seedling. As known, drought-tolerant cultivars have xylem vessels of the root and hypocotyl of smaller diameter than the cultivars susceptible to drought, using five contrasting beans, of indeterminate habit type III, from which seedlings were harvested at 7, 11, 15, 19 and 23 days after sowing (DAS); moreover, in the latest seedling harvest (23 DAS), root samples approximately 1 cm in length were taken. The cuts in the main root were made at three positions; in the nodal region, 1 cm below the hypocotyl-root axis, in the middle and, 1 cm from the apex of each variety. The drought-tolerant cultivar (FM Corregidora) had roots and xylem vessels of smaller diameter than the drought-susceptible cultivar (FM CMR) and low performance landrace (Michoacán 128). FM Corregidora showed greater length and total dry weight of the roots than FM CMR and Michoacán 128. FM Corregidora ́s roots grow faster than the other cultivars ́, giving a greater development in the seedling stage. The diameter of the hypocotyl and the central hole is greater in FM Corregidora and, the high-yielding cultivars (FJ Marcela and FM Bajío) than in the susceptible to drought and the landrace. FM Corregidora, FJ Marcela, FM Bajío and FM RMC have a thicker crust and a higher number of xylem vessels than Michoacán 128. Drought-tolerant material (FM Corregidora) showed roots and xylem vessels of smaller diameter than the drought-susceptible cultivar ́s (FM CMR) and low-yielding landrace ́s (Michoacán 128).

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Published

2018-07-04

How to Cite

Barrios-Gómez Edwin Javier, López-Castañeda Cándido, Kohashi-Shibata Josué, Jorge Alberto Acosta-Gallegos, Miranda-Colín Salvador, Jaime Canul Ku, and Mayek-Pérez Netzahualcóyotl. 2018. “Comparison of Morphological Structures in Bean Root and Hypocotyl”. Revista Mexicana De Ciencias Agrícolas 3 (4). México, ME:655-69. https://doi.org/10.29312/remexca.v3i4.1420.

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