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pea/nicotine

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ArticoleStudii cliniceBrevete
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A Promoter from Pea Gene DRR206 Is Suitable to Regulate an Elicitor-Coding Gene and Develop Disease Resistance.

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ABSTRACT Plant nonhost disease resistance is characterized by the induction of multiple defense genes. The pea DRR206 gene is induced following inoculation with pathogens and treatment with abiotic agents, and moderately induced by wounding. A deletion series of DRR206 promoter segments was fused

Nucleotide sequence of the coat protein gene of pea seed-borne mosaic potyvirus.

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The nucleotide sequence of a 1355 bp cDNA representing the 3'-terminal sequences of pea seed-borne mosaic virus (PSbMV) was determined. This sequence contained a single long open reading frame (ORF) of 1189 bp ending with a single TAA termination codon. Downstream from the ORF was an untranslatable

Induction, purification and characterization of chitinase isolated from pea leaves inoculated with Ascochyta pisi.

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Chitinase (EC 3.2.1.14.) activity increased in pea (Pisum sativum L.) leaves inoculated with both virulent and avirulent isolates of Ascochyta pisi Lib. Three basic chitinase isoenzymes were purified: two, A1 and A2, separated by high performance liquid chroma tography, had a relative molecular mass

Pea lectin is correctly processed, stable and active in leaves of transgenic potato plants.

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A gene encoding the preproprotein of the pea (Pisum sativum) lectin was expressed in transgenic potato plants using a cauliflower mosaic virus (CaMV) 35S promoter or a tobacco ribulose bisphosphate carboxylase small subunit (ssRubisco) promoter. Presence of the pea lectin to levels greater than 1%

First Report of Bacterial Blight Caused by Pseudomonas viridiflava on Pea in Spain.

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Because production of dry peas (Pisum sativum L.) is increasing in Spain, disease surveys were carried out from 2004 to 2006 in Castilla y Leon, the largest pea-producing region. In May of 2004, a leaf and stem blight caused an estimated 25% loss in yield in pea (cv. Messire) fields in El Cerrato

A/T-rich sequences act as quantitative enhancers of gene expression in transgenic tobacco and potato plants.

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The role of an A/T-rich positive regulatory region (P268, -444 to -177 from the translation start site) of the pea plastocyanin gene (PetE) promoter has been investigated in transgenic plants containing chimeric promoters fused to the beta-glucuronidase (GUS) reporter gene. This region enhanced GUS

Expression of a cloned sweet potato catalase SPCAT1 alleviates ethephon-mediated leaf senescence and H₂O₂ elevation.

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In this report a full-length cDNA, SPCAT1, was isolated from ethephon-treated mature L3 leaves of sweet potato. SPCAT1 contained 1479 nucleotides (492 amino acids) in its open reading frame, and exhibited high amino acid sequence identities (ca. 71.2-80.9%) with several plant catalases, including

Expression of intron-containing GUS constructs is reduced due to activation of a cryptic 5' splice site.

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An intron-containing beta-glucuronidase (GUS) gene has been used widely in promoter analyses and as a plant transformation marker. Maximal plant gene expression requires accurate and efficient removal of the intron from the expressed pre-mRNA transcripts by splicing. Detailed analysis of splicing of

Fungal mitochondrial DNases: effectors with the potential to activate plant defenses in nonhost resistance.

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Previous reports on the model nonhost resistance interaction between Fusarium solani f. sp. phaseoli and pea endocarp tissue have described the disease resistance-signaling role of a fungal DNase1-like protein. The response resulted in no further growth beyond spore germination. This F. solani f.

The system of phytochromes: photobiophysics and photobiochemistry in vivo.

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Phytochrome is a key photoregulation pigment in plants which determines the strategy of their development throughout their life cycle. The major achievement in the recent investigations of the pigment is the discovery of its structural and functional heterogeneity: existence of a family of
A panel of monoclonal antibodies (MAbs) generated against an admixture of 12 potyvirus isolates was used to compare and differentiate diverse potyviruses. Both native and denatured virions of strains of bean yellow mosaic (BYMV), potato virus Y, tobacco etch, pea seed-borne mosaic, iris severe

The distribution of 5-methylcytosine in the nuclear genome of plants.

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We have determined the 5-methylcytosine (5mC) content in high molecular weight DNA, from two dicot (tobacco and pea) and two monocot (wheat and maize) plant species, fractionated according to base composition. The results show that the proportion of 5mC in the genomic fractions increases linearly

Role of plant expression systems in antibody production for passive immunization.

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Passive immunization is a method to achieve immediate protection against infectious agents by administering pathogen-specific antibodies. It has proven to be lifesaving for many acute infections, and it is now also used for cancer treatment. Passive immunization therapies, however, are extremely

Tobraviruses--plant pathogens and tools for biotechnology.

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The tobraviruses, Tobacco rattle virus (TRV), Pea early-browning virus (PEBV) and Pepper ringspot virus (PepRSV), are positive-strand RNA viruses with rod-shaped virus particles that are transmitted between plants by trichodorid nematodes. As a group, these viruses infect many plant species, with
We have searched for induced transcripts in a cDNA library derived from bean cell supension cultures treated with an elicitor from Colletotrichum lindemuthianum. Six independently isolated cDNAs corresponding to rapidly induced small mRNAs have been classified by their DNA sequence and slightly
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