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... The commercial use of chlorates for weed control purposes in Idaho has met with gratifying success. There are certain features which limit the effectiveness of the treatments. These may be summarized in a general way from extensive observations made during the entire growing season. It has become very apparent that the full effectiveness of the treatments is not evident until the following season. ...
... The root systems of 10 common perennial weeds which spread vegetatively are described. Eight of the weeds described propagate by roots and two by rhizomes. The results of the findings in this study are briefly summarized in Table 1. (...). ...
... An ecosystem approach was used to assess the effects of soil contamination with an organophosphate insecticide on ecological succession in 3—acre old field on the Piedmont of New Jersey. Diazinon was applied to one—half of the field in May 1967 and again in May 1967 and again in May 1968 at a rate of 12 lbs of active ingredient per acre. A latin square experimental design was used to analyze the e ...
... The chemical basis of host selection in stenophagous insects, Oidaematophorus monodactylus, Metriona bicolor, Deloyala guttata and Chelymorpha cassidea was studied. A compound with the molecular formula C₅H₃NO₄, isolated from a water extract of Calystegia sepium, acted as a recognition factor for O. monodactylus and D. guttata but not for M. bicolor and C. cassidea, indicating that insects feeding ...
... Mechanically isolated mesophyll cells of Calystegia sepium L. incubated in thin layers of non-agitated liquid media readily attach to their substrate (culture vessel). Conditions for this attachment of living plant cells are: a medium consisting of a low concentration of at least one macroelement and one sugar, a pH value between 5 and 7, and a substrate with a hydrophilic character (e.g. glass, p ...
... Under a variety of light conditions, and in a modified NT medium containing sucrose as a carbon source, isolated mesophyll cells of Calystegia sepium started cell divisions after 72 h. Alternately, under light-dark alterations (12: 12 h; 1.35–1.50 W m−2 of cool white light), and culture in the NT medium lacking an organic carbon source, and made iso-osmotic by the addition of mannitol, the cells p ...
Noctuidae; larvae; feeding preferences; Convolvulus arvensis; biotypes; Calystegia sepium; food intake; biological development; mortality; biological control agents; weed control
Abstract:
... Larval feeding preference, consumption, and development were assessed for the imported noctuid moth Tyta luctuosa (Denis & Schiffermuller) on 4 biotypes of field bindweed, Convolvulus arvensis L. and on hedge bindweed, Calystegia sepium L. No preference, either innate or induced, was observed in 4th and 5th instars for any of the plant types tested. The food source of early instars did not signifi ...
... The most abundant protein of resting rhizomes of Calystegia sepium (L.) R.Br. (hedge bindweed) has been isolated and its corresponding cDNA cloned. The native protein consists of a single polypeptide of 212 amino acid residues and occurs as a mixture of glycosylated and unglycosylated isoforms. Both forms are derived from the same preproprotein containing a signal peptide and a C-terminal propepti ...
... This paper extends our knowledge of the rather bizarre carbohydrate binding poperties of the banana lectin (Musa acuminata). Although a glucose/mannose binding protein which recognizes αâlinked glucoâand mannoâpyranosyl groups of polysaccharide chain ends, the banana lectin was shown to bind to internal 3âOâαâdâglucopyranosyl units. Now we report that this lectin also binds to the ...
... An abundant catalytically active βâamylase (ECâ3.2.1.2) was isolated from resting rhizomes of hedge bindweed (Calystegia sepium). Biochemical analysis of the purified protein, molecular modeling, and cloning of the corresponding gene indicated that this enzyme resembles previously characterized plant βâamylases with regard to its aminoâacid sequence, molecular structure and catalytic act ...
... Virus symptoms were observed on Hedge bindweed (Calystegia sepium) a well known plant in Hungary. In the literature there is no record of virus infection on Hedge bindweed, therefore, investigations were carried out to determine the causal agent. Sap from leaves showing virus-like symptoms was inoculated onto test plants inducing systemic infection on Nicotiana clevelandii, N. benthamiana, local l ...
... In laboratory and garden experiments, we tested for the existence of adaptive patterns of oviposition and larval behaviour regarding group size in the gregarious tortoise beetle Chelymorpha varians Blanchard (Coleoptera: Chrysomelidae: Cassidinae) on its host plant Calystegia sepium L. (Convolvulaceae). Specifically, we addressed the following questions: (i) Which is the more frequent egg cluster ...
... The regrowth of Calystegia sepium was studied in three types of experiments during spring 2003 and spring 2004. In one glasshouse experiment, rhizome fragments were planted in pots and either harvested at six different developmental stages to assess their undisturbed development and growth or harvested at 420 day degrees after burial to measure their regenerative capacity. Regrowth gradually decli ...
... The Jacalin-related lectin (JRL) family comprises galactose-binding-type (gJRLs) and mannose-binding-type (mJRLs) lectins. Although the documented occurrence of gJRLs is confined to the family Moraceae, mJRLs are widespread in the plant kingdom. A detailed comparison of sugar-binding specificity was made by frontal affinity chromatography to corroborate the structure-function relationships of the ...
... In seed beetles, oviposition decisions may influence the offspring phenotype because eggs constitute the initial resources available for larval development. We tested the effects of host quality variations (small vs. large seeds of the host plant Calystegia sepium, Convolvulaceae) on oviposition patterns and offspring performance of the seed beetle Megacerus eulophus. We also manipulated the mater ...
... Bois noir phytoplasma (BNp), widespread in wine-producing areas of Europe and endemic in France and Italy, is classified in the 16SrXII-A subgroup, whose members are referred to as Stolbur phytoplasmas. The 16S rDNA gene of Stolbur phytoplasma shows low variability, and few non-ribosomal genes are available as markers to assess variation among isolates. We used the Stolbur-specific stol-1H10 gene, ...