Rodolfo Zentella Gomez

Journal Article Proceedings of the National Academy of Sciences of the United States of America · February 2011 The diterpenoid phytohormone gibberellin (GA) controls diverse developmental processes throughout the plant life cycle. DELLA proteins are master growth repressors that function immediately downstream of the GA receptor to inhibit GA signaling. By doing so ... Full text Cite

Global Analysis of DELLA Direct Targets in Early Gibberellin Signaling in Arabidopsis

Journal Article Plant Cell · 2007 Cite

Genetic characterization and functional analysis of the GID1 gibberellin receptors in Arabidopsis.

Journal Article The Plant Cell · December 2006 We investigated the physiological function of three Arabidopsis thaliana homologs of the gibberellin (GA) receptor GIBBERELLIN-INSENSITIVE DWARF1 (GID1) by determining the developmental consequences of GID1 inactivation in insertion mutants. Although singl ... Cite

Use of bacterial quorum-sensing components to regulate gene expression in plants.

Journal Article Plant Physiology · April 2006 We describe an efficient inducible system to regulate gene expression in plants based on quorum-sensing components found in Gram-negative bacteria such as Agrobacterium tumefaciens. These bacteria monitor their own population density by utilizing members o ... Cite

Crosstalk between gibberellin and abscisic acid in cereal aleurone

Journal Article Journal of Plant Growth Regulation · 2003 The antagonism between gibberellins (GA) and abscisic acid (ABA) is an important factor regulating the developmental transition from embryogenesis to seed germination. in cereal aleurone layers, the expression of genes encoding hydrolytic enzymes needed fo ... Cite

Molecular dissection of the gibberellin/abscisic acid signaling pathways by transiently expressed RNA interference in barley aleurone cells.

Journal Article The Plant Cell · September 2002 The interaction between two phytohormones, gibberellins (GA) and abscisic acid (ABA), is an important factor regulating the developmental transition from seed dormancy to germination. In cereal aleurone tissue, GA induces and ABA suppresses the expression ... Cite

AtHVA22 gene family in Arabidopsis: phylogenetic relationship, ABA and stress regulation, and tissue-specific expression.

Journal Article Plant Molecular Biology · August 2002 HVA22 is an ABA- and stress-inducible gene first isolated from barley (Hordeum vulgare L.). Homologues of HVA22 have been found in plants, animals, fungi and protozoa, but not in prokaryotes, suggesting that HVA22 plays a unique role in eukaryotes. Five HV ... Cite

Molecular analysis of the barley ( Hordeum vulgare L.) gene encoding the protein kinase PKABA1 capable of suppressing gibberellin action in aleurone layers.

Journal Article Planta · June 2002 Abscisic acid (ABA) induces the expression of a gene encoding a protein kinase, PKABA1, in wheat ( Triticum aestivum L.). Transient expression of the cDNA encoding this kinase suppresses the gibberellin (GA)-induced expression of alpha-amylase genes in bar ... Cite

Involvement of multiple cis-elements in the regulation of GA responsive promoters: Definition of a new cis-element in the Amy32b gene promoter of barley (Hordeum vulgare).

Journal Article Physiologia Plantarum · June 2001 The Amy32b gene is a member of the low-pI alpha-amylase gene family of barley, whose expression is tightly regulated by hormones in the aleurone layer. Four cis-elements are known to be important for the GA induction of this gene: GARE, amylase box, pyrimi ... Cite

Gibberellin/abscisic acid antagonism in barley aleurone cells: site of action of the protein kinase PKABA1 in relation to gibberellin signaling molecules.

Journal Article The Plant Cell · March 2001 The antagonism between gibberellins (GA) and abscisic acid (ABA) is an important factor regulating the developmental transition from embryogenesis to seed germination. In barley aleurone layers, the expression of genes encoding alpha-amylases and proteases ... Cite

New desiccation-tolerant plants, including a grass, in the central highlands of Mexico, accumulate trehalose

Journal Article Australian Journal of Botany · 2000 grass endemic to Mexico, Sporobolus atrovirens, was identified for the first time as a desiccation-tolerant resurrection plant. Nine species of desiccation-tolerant vascular plants were found in the highland area of Mexico, including four species of ferns ... Cite

A Selaginella lepidophylla trehalose-6-phosphate synthase complements growth and stress-tolerance defects in a yeast tps1 mutant.

Journal Article Plant Physiology · April 1999 The accumulation of the disaccharide trehalose in anhydrobiotic organisms allows them to survive severe environmental stress. A plant cDNA, SlTPS1, encoding a 109-kD protein, was isolated from the resurrection plant Selaginella lepidophylla, which accumula ... Cite

PhrA, the major photoreactivating factor in the cyanobacterium Synechocystis sp. strain PCC 6803 codes for a cyclobutane-pyrimidine-dimer-specific DNA photolyase.

Journal Article Archives of Microbiology A new broad-host-range plasmid, pSL1211, was constructed for the over-expression of genes in Synechocystis sp. strain PCC 6803. The plasmid was derived from RSF1010 and an Escherichia coli over-expression plasmid, pTrcHisC. Over-expressed protein is made w ... Cite