Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Ana M. Espinoza"'
Publikováno v:
Revista de Biología Tropical, Vol 57, Iss suppl 1, Pp 141-150 (2009)
Rice (Oryza sativa cv. 5272) embryogenic calli were obtained from mature zygotic embryos culture on Murashige & Skoog (1962) medium supplemented with 2.5 mg/l 2,4- dichlorophenoxyacetic acid. Histological analysis of somatic embryogenesis revealed th
Externí odkaz:
https://doaj.org/article/9393df612378466f9bdb7d1ff7ef15d2
Publikováno v:
Revista de Biología Tropical, Vol 57, Pp 151-160 (2009)
The aim of this work was to optimize the biolistic delivery parameters that affect the DNA delivery and stable expression of marker genes into coffee tissues (Coffea arabica. L. cvs. Caturra and Catuaí). The effect of osmotic preculture length, osmo
Externí odkaz:
https://doaj.org/article/4dc46ed6e4c841a487708874e26cdc53
Publikováno v:
Agronomía Costarricense, Vol 32, Iss 1, Pp 139-147 (2008)
Se investigó la influencia de la concentración de triacontanol (TRIA) y su interacción con el ácido indolacético (AIA) en la inducción de la embriogénesis somática directa en Coffea arabica L. cvs. Caturra y Catuaí. Adicionalmente, se e
Externí odkaz:
https://doaj.org/article/6005cde6596c4bc2adc00d7ab0ace013
Publikováno v:
Revista de Biología Tropical, Vol 55, Iss 2, Pp 373-383 (2007)
A reliable bioassay procedure was developed to test ingested Bacillus thuringiensis (Bt) toxins on the rice delphacid Tagosodes orizicolus. Initially, several colonies were established under greenhouse conditions, using rice plants to nurture the ins
Externí odkaz:
https://doaj.org/article/d165f13000e34324953aba43fa11c12a
Publikováno v:
Agronomía Costarricense, Vol 31, Iss 1, Pp 86-94 (2007)
La presente investigación tuvo como objetivo establecer una metodología para la inducción de la embriogénesis somática directa en las variedades de café Caturra y Catuaí. Se observó un efecto del genotipo en la inducción de la embriogé
Externí odkaz:
https://doaj.org/article/58f77019fbd8413ebd760a45bbe6b52a
Publikováno v:
Revista de Biología Tropical, Vol 54, Iss 2, Pp 377-385 (2006)
Oryza grandiglumis is a wild species of rice endemic to tropical America. This species was first found in 1998 in the wetlands of Caño Negro, located in the northern part of Costa Rica. Twenty five plants of O. grandiglumis were processed for scanni
Externí odkaz:
https://doaj.org/article/14710b5f8d6a456ca373f32257993c34
Publikováno v:
Revista de Biología Tropical, Vol 54, Iss 2, Pp 265-271 (2006)
Bacillus thuringiensis (Bt) synthesizes crystalline inclusions that are toxic to caterpillars (Lepidoptera) and other orders of invertebrates. Materials associated with 37 caterpillars from 16 species, collected while feeding on 15 different species
Externí odkaz:
https://doaj.org/article/308b95975bb34ed18efbb7168a01c6d8
Autor:
Glen Arrieta, Ana M Espinoza
Publikováno v:
Revista de Biología Tropical, Vol 54, Iss 1, Pp 13-27 (2006)
Costa Rican natural ecosystems are among the most diverse in the world. For this reason, we isolated strains of the entomopathogenic bacteria Bacillus thuringiensis (Bt ) to determine their diversity, distribution and abundance. A total of 146 Bt str
Externí odkaz:
https://doaj.org/article/f3724b56ce6e49959a111b7f51851c63
Publikováno v:
Revista de Biología Tropical, Vol 53, Iss 3-4, Pp 361-368 (2005)
With the purpose of increasing the embryogenesis regeneration process in vitroplants obtained from somatic embryos of the indica rice variety CR-5272 (Oryza sativa L.), two independent experiments were performed. The first experiment consisted in the
Externí odkaz:
https://doaj.org/article/62b41a8fe89e4f8fab8ba40dfdb2cb18
Autor:
Ethel Sánchez, Ana M Espinoza
Publikováno v:
Revista de Biología Tropical, Vol 53, Iss 1-2, Pp 15-22 (2005)
Oryza glumaepatula is a perennial wild rice species,endemic to tropical America, previously known as the Latin American race of Oryza rufipogon .In Costa Rica, it is found in the northern region of the country, mainly in the wetland of the Medio Ques
Externí odkaz:
https://doaj.org/article/63249462577c499a91cd48892e32bf84