Pleiotropic Effects in Transgenic Tobacco Plants Expressing the Oryzacystatin I Gene

Autor:	Rafael Gutiérrez-Campos, Miguel A. Gómez-Lim, Juan Antonio Torres-Acosta, José de Jesús Pérez-Martínez
Rok vydání:	2001
Předmět:	Genetics biology Nicotiana tabacum Transgene fungi food and beverages Genetically modified crops Horticulture biology.organism_classification Genetically modified organism Pleiotropy Gene expression Gene Solanaceae
Zdroj:	HortScience. 36:118-119
ISSN:	2327-9834 0018-5345
DOI:	10.21273/hortsci.36.1.118
Popis:	A study was undertaken to evaluate possible phenotypic alterations in transgenic tobacco (Nicotiana tabacum L. cv. Xanthi) plants expressing the oryzacystatin I gene. Morphophysiologic parameters, such as growth rate, biomass, and leaf, flower, and fruit characteristics were analyzed. Transgenic plants overexpressing the cysteine proteinase inhibitor showed increased growth rate and dry weight, earlier flowering, and increased numbers of flowers and seeds. These pleiotropic effects were correlated with expression level of oryzacystatin I in transgenic lines. The results suggest that oryzacystatin I disrupts the normal activity of cysteine proteinases, which are involved in important physiological processes. transgenic plants might cause undesirable phenotypic alterations. To address this issue, a study was undertaken to examine the pheno- typic characteristics of transgenic tobacco plants overexpressing the oryzacystatin I gene.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5c21a221ca36ee84b1aef09f1097d883 https://doi.org/10.21273/hortsci.36.1.118 Zobrazit plný text záznamu