proteinase inhibitor/nicotiana

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Posttranslational modification of an isoinhibitor from the potato proteinase inhibitor II gene family in transgenic tobacco yields a peptide with homology to potato chymotrypsin inhibitor I.

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A member of the potato proteinase inhibitor II (PPI-II) gene family under the control of the cauliflower mosaic virus 35S promoter has been introduced into tobacco (Nicotiana tabacum). Purification of the PPI-II protein that accumulates in transgenic tobacco has confirmed that the N-terminal signal

Inhibition of Sucrose Enhancer Effect of the Potato Proteinase Inhibitor II Promoter by Salicylic Acid.

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Effect of salicylic acid (SA) on the expression of the potato proteinase inhibitor (PI) II promoter was studied with transgenic tobacco plants (Nicotiana tabacum) carrying a gene fusion between the PI-II promoter and the chloramphenicol acetyltransferase (cat) reporter. As previously observed, the

Heterologous Expression of PKPI and Pin1 Proteinase Inhibitors Enhances Plant Fitness and Broad-Spectrum Resistance to Biotic Threats

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Kunitz-type (PKPI) and Potato type I (Pin1) protease inhibitors (PIs) are two families of serine proteinase inhibitors often associated to plant storage organs and with well known insecticidal and nematicidal activities. Noteworthy, their ability to limit fungal and bacterial pathogenesis in

Structure and induction pattern of a novel proteinase inhibitor class II gene of tobacco.
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A cDNA and a corresponding genomic clone encoding a protein with partial identity to type II proteinase inhibitors from potato, tomato and Nicotiana alata, were isolated from tobacco libraries. The protein of 197 amino acids contains a putative signal peptide of 24 residues and three homologous

Identification of a novel four-domain member of the proteinase inhibitor II family from the stigmas of Nicotiana alata.
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Proteinase inhibitors (PIs) of the potato type II family have been identified in a number of solanaceous species. Most family members have two PI domains which are specific for either chymotrypsin or trypsin. More recently family members have been described with three or six repeated PI domains.

Structural refinement of insecticidal plant proteinase inhibitors from Nicotiana alata.
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Ornamental tobacco (Nicotiana alata) produces a series of 6 kDa proteinase inhibitors belonging to the potato type II inhibitor family. These proteins inhibit trypsin and chymotrypsin, the main digestive enzymes of predatory insects, thus leading to starvation, impaired larval development or death.

Proteinase inhibitors in Nicotiana alata stigmas are derived from a precursor protein which is processed into five homologous inhibitors.
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A cDNA clone, NA-PI-II, encoding a protein with partial identity to proteinase inhibitor (PI) II of potato and tomato has been isolated from a cDNA library constructed from Nicotiana alata stigma and style mRNA. The cDNA encodes a polypeptide of 397 amino acids with a putative signal peptide of 29

cDNA cloning and gene expression analysis of the microbial proteinase inhibitor of tobacco.
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Tobacco mosaic virus-infected tobacco (Nicotiana tabacum var. Samsun NN) leaves produce a serine proteinase inhibitor that has evolved a specificity for microbial proteinases. We have isolated two closely related cDNAs that were shown to encode two active inhibitors. Southern analysis of genomic

Differential accumulation of proteinase inhibitor I in normal and crown gall tissue of tobacco, tomato, and potato.
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A proteinase inhibitor (inhibitor I) is induced in crown gall tumors of tobacco (Nicotiana tabacum) initiated through infection with the tumorinducing bacterium, Agrobacterium tumefaciens, strains B6 or CG-14. Uninfected tissues do not contain immunologically detectable quantities of inhibitor I.

Functional Characterization of Cucumis metuliferus Proteinase Inhibitor Gene (CmSPI) in Potyviruses Resistance.
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Proteinase inhibitors are ubiquitous proteins that block the active center or interact allosterically with proteinases and are involved in plant physiological processes and defense responses to biotic and abiotic stresses. The CmSPI gene identified from Cucumis metuliferus encodes a serine type PI

Induction of Proteinase Inhibitors in Tobacco Cell Suspension Culture by Elicitors of Phytophthora parasitica var. nicotianae.
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An elicitor preparation obtained from Phytophthora parasitica var. nicotianae, a pathogen of tobacco, induced an accumulation of proteinase inhibitors and a stimulation of ethylene synthesis in a tobacco (Nicotiana tabacum) cell suspension culture. About 30 micrograms per milliliter of elicitor were

Knock-down of transcript abundance of a family of Kunitz proteinase inhibitor genes in white clover (Trifolium repens) reveals a redundancy and diversity of gene function.
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The transcriptional regulation of four phylogenetically distinct members of a family of Kunitz proteinase inhibitor (KPI) genes isolated from white clover (Trifolium repens; designated Tr-KPI1, Tr-KPI2, Tr-KPI4 and Tr-KPI5) has been investigated to determine their wider functional role. The four

Opposite effects on spodoptera littoralis larvae of high expression level of a trypsin proteinase inhibitor in transgenic plants
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This work illustrates potential adverse effects linked with the expression of proteinase inhibitor (PI) in plants used as a strategy to enhance pest resistance. Tobacco (Nicotiana tabacum L. cv Xanthi) and Arabidopsis [Heynh.] ecotype Wassilewskija) transgenic plants expressing the mustard trypsin

The nightshade proteinase inhibitor IIb gene is constitutively expressed in glandular trichomes.
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The best known property of plant proteinase inhibitor II (PIN2) genes is their wound-inducible expression in leaves and constitutive expression in flowers. Here we show by promoter analysis in transgenic plants and in situ reverse transcription-PCR (RT-PCR) analysis that SaPIN2b, a member of the

Differential expression of a chimeric CaMV-tomato proteinase Inhibitor I gene in leaves of transformed nightshade, tobacco and alfalfa plants.
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The open reading frame and terminator region of a wound-inducible tomato Inhibitor I gene, regulated by the CaMV 35S promoter, was stably integrated into the genomes of nightshade (Solanum nigrum), tobacco (Nicotiana tabacum), and alfalfa (Medicago sativa), using an Agrobacterium-mediated

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proteinase inhibitor/nicotiana

Posttranslational modification of an isoinhibitor from the potato proteinase inhibitor II gene family in transgenic tobacco yields a peptide with homology to potato chymotrypsin inhibitor I.

Inhibition of Sucrose Enhancer Effect of the Potato Proteinase Inhibitor II Promoter by Salicylic Acid.

Heterologous Expression of PKPI and Pin1 Proteinase Inhibitors Enhances Plant Fitness and Broad-Spectrum Resistance to Biotic Threats

Structure and induction pattern of a novel proteinase inhibitor class II gene of tobacco.

Identification of a novel four-domain member of the proteinase inhibitor II family from the stigmas of Nicotiana alata.

Structural refinement of insecticidal plant proteinase inhibitors from Nicotiana alata.

Proteinase inhibitors in Nicotiana alata stigmas are derived from a precursor protein which is processed into five homologous inhibitors.

cDNA cloning and gene expression analysis of the microbial proteinase inhibitor of tobacco.

Differential accumulation of proteinase inhibitor I in normal and crown gall tissue of tobacco, tomato, and potato.

Functional Characterization of Cucumis metuliferus Proteinase Inhibitor Gene (CmSPI) in Potyviruses Resistance.

Induction of Proteinase Inhibitors in Tobacco Cell Suspension Culture by Elicitors of Phytophthora parasitica var. nicotianae.

Knock-down of transcript abundance of a family of Kunitz proteinase inhibitor genes in white clover (Trifolium repens) reveals a redundancy and diversity of gene function.

Opposite effects on spodoptera littoralis larvae of high expression level of a trypsin proteinase inhibitor in transgenic plants

The nightshade proteinase inhibitor IIb gene is constitutively expressed in glandular trichomes.

Differential expression of a chimeric CaMV-tomato proteinase Inhibitor I gene in leaves of transformed nightshade, tobacco and alfalfa plants.

Cea mai completă bază de date cu plante medicinale susținută de știință