Topic
Tentoxin
About: Tentoxin is a research topic. Over the lifetime, 205 publications have been published within this topic receiving 4461 citations.
Papers published on a yearly basis
Papers
28 Nov 1988
TL;DR: Natural Products and Their Potential in Agriculture Tentoxin: A Cyclic Tetrapeptide Having Potential Herbicidal Usage Approaches to Structure-Function Relationships for Naturally Occuring Cyclic Peptides: A Study of Tentoxin Toxins of Phytopathogenic Microorganisms.
Abstract: Natural Products and Their Potential in Agriculture Tentoxin: A Cyclic Tetrapeptide Having Potential Herbicidal Usage Approaches to Structure-Function Relationships for Naturally Occuring Cyclic Peptides: A Study of Tentoxin Toxins of Phytopathogenic Microorganisms: Structural Diversity and Physiological Activity Production of Herbicidal and Insecticidal Metabolites by Soil Microorganisms Diverse but Specific Biological Activities of Four Natural Products from Three Fungi Avermectins: Biological and Pesticidal Activities Fungal Elicitors of Phytoalexins and Their Potential Use in Agriculture Endophytic Bacteria for the Delivery of Agrichemicals to Plants Phenol Glycosides in Plant Defense against Herbivores Biosynthetic Relationship among Cyanogenic Glycosides, Glucosinolates, and Nitro Compounds Biological Effects of Glucosinolates Naturally Occuring Carbon-Phosphorus Compounds as Herbicides Phytochemical Inhibitors of Velvetleaf (Abutilon theophrasti) Germination as Models for New Biorational Herbicides Allelopathy in the Florida Scrub Community as a Model for Natural Herbicide Actions Terpenoids as Models for New Agrochemicals Chemical and Anatomical Response in Gossypium spp. Challenged by Verticillium dahliae Mitotic Disrupters from Higher Plants: Effects on Plant Cells Camptothecin and Other Plant Growth Regulators in Higher Plants with Antitumor Activity Natural Products in the Search for New Agrochemicals Terpenoids from the Genus Artemisia as Potential Pesticides Chemistry and Biological Activity of Acyinornicotines from Nicotiana repandae Allelochemical Properties of Nicotiana tabacum Leaf Surface Compounds Plant Constituents as Oviposition Deterrents to Lepidopterous Insects Plant Natural Products as Parasitoid Cuing Agents Iridoid Glycosides and Aglycones as Chiral Synthons, Bioactive Compounds, and Lepidopteran Defenses Glycosides: The Interface between Plant Secondary and Insect Primary Metabolism Chemistry and Biological Activity of Pentatomoid Sex Phermones Dithiopolyacetylenes as Potential Pesticides Biocidal and Deterrent Activities of Nitrogen Heterocycles Produced by Venomous Myrmicine Ants Protecting Crops and Wildlife with Chitin and Chitosan
398 citations
TL;DR: This chapter presents a comprehensive list of compounds that inhibit the synthesis of adenosine triphosphate associated with electron transport that is catalyzed by membrane systems present in mitochondria, chloroplasts, and prokaryotic cells.
Abstract: Publisher Summary This chapter presents a comprehensive list of compounds that inhibit the synthesis of adenosine triphosphate (ATP) associated with electron transport that is catalyzed by membrane systems present in mitochondria, chloroplasts, and prokaryotic cells. Inhibitors are divided into two groups. Some inhibitors interact directly with the ATPase molecule. In this group, the aurovertins, citreoviridin, Nbf-C1 (4-chloro-7-nitrobenzofurazan), quercetin, tentoxin, and efrapeptin are included. These compounds also react with and inhibit purified soluble ATPase preparations Other inhibitors react with other membrane components of the synthetase complex. These include carbodiimides, oligomycins, venturicidins, organotins, ossamycin, leucinostatin, and Dio-9. Some compounds whose inhibitory effects have not been well characterized are also discussed in the chapter. The chapter discusses the significant physical and chemical properties of these inhibitors.
246 citations
TL;DR: Tentoxin, a cyclic tetrapeptide, induces chlorosis in certain plant species and inactivated photophosphorylation and coupling factor 1 (CF(1)) ATPase in lettuce, a sensitive species, and was correlated with chlorosis sensitivity in six other species examined.
Abstract: Tentoxin, a cyclic tetrapeptide, induces chlorosis in certain plant species. It inactivated photophosphorylation and coupling factor 1 (CF1) ATPase in lettuce, a sensitive species. This effect was due to binding of tentoxin with CF1 at a single site (affinity constant 1.3 to 20 × 107 M-1). Neither AMP nor adenyl-5′-yl imidodiphosphate appeared to bind to this site. In radish, an insensitive species, 20 times more tentoxin was required for 50% inhibition of photophosphorylation. In this species CF1 ATPase was unaffected by tentoxin, and its CF1 bound tentoxin only weakly (affinity constant less than 1 × 104 M-1). Sensitivity of photophosphorylation to tentoxin was correlated with chlorosis sensitivity in six other species examined.
161 citations
TL;DR: The structure probably represents an inactive latent state of the ATPase, which is unique to chloroplast and cyanobacterial enzymes, and probably represents the C-terminal domain of the γ-subunit.
127 citations
TL;DR: It could be demonstrated that there was an independent segregation of chloroplast type and male fertility/sterility: several somatic cybrids were male fertile but tentoxin sensitive and others were tentoxin insensitive yet they were male sterile.
Abstract: Restoration of male fertility was achieved by fusing protoplasts from male sterile (CMS) Nicotiana sylvestris plants with X-irradiated protoplasts derived from fertile N. tabacum plants. The CMS N. sylvestris plants were derived from a previous somatic hybridization experiment and contained alien (Line 92) cytoplasm. About one quarter of the regenerated plants were found to be cybrids. i.e. they consisted of N. sylvestris nuclei combined with all or some components of N. tabacum cytoplasm. In one half of these cybrids male fertility was restored to different levels. The chloroplasts of the two parental donors differ in respect to tentoxin sensitivity: chloroplasts of CMS N. sylvestris are sensitive while those of N. tabacum are insensitive. It could therefore be demonstrated that there was an independent segregation of chloroplast type and male fertility/sterility: several somatic cybrids were male fertile but tentoxin sensitive and others were tentoxin insensitive yet they were male sterile. Only in about one half of the somatic cybrids was male fertility restored together with restoration to tentoxin insensitivity.
104 citations
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