9 research outputs found

    Heteroleptic Metallosupramolecular Complexes of Bodipy Dyes as Energy Transfer Cassettes

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    Cataloged from PDF version of article.Bodipy dyes with integral phenanthroline and terpyridine units heteroleptically assemble in the presence of zinc(II) ions to form energy transfer cassettes. These discrete complexes exhibit an approach to modularly designed efficient energy transfer and light harvesting systems through metal ion coordination

    Identification of Turkish isolate of the entomopathogenic fungi, Purpureocillium lilacinum (syn: Paecilomyces lilacinus) and its effect on potato pests, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae) and Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae)

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    Potato (Solanum tuberosum L.) is one of the most important vegetable crops in Turkey as well in the world. Potato plants are attacked by a large number of insect pests such as aphids, beetles, leafhoppers and lepidopterous pests under both field and storage conditions. The Colorado potato beetle (CPB) [Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae)] and the potato tuber moth (PTM) [Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae)] are the most destructive pests in potatoes grown areas. Many pesticides that used to control the potato pests are very toxic to environment and human. An alternative approach to the commercial pesticides is using biological agents like fungi. Purpureocillium lilacinum was described more than a century ago and is a commonly occurring fungus in soil. P. lilacinum (syn: Paecilomyces lilacinus) is the most widely tested fungus for the control of nematodes, aphids and insects. The fungus was determined in Turkey but its molecular identification has not been done yet. In this study, a Turkish isolate of P. lilacinum was identified by classical (morphologic and morphometric properties) and molecular methods. Also, the study concerned with the effect of different conidial concentrations of the fungal isolate on mortality rates of CPB and PTM at different temperatures. P. lilacinumwas found to be most effective on the last larval instar of CPB and PTM (33.2 and 43.3% mortality, respectively) on 10th day of treatment with the fungal concentration of 108cfu ml-1at 25°C. This fungus developed on all dead larvae and was highly susceptible at the tested temperatures, but its activity decreased at 15°C. Findings of this study showed a potential of the fungus as a bioagent against the CPB and the PTM. © 2016, Egyptian Society for Biological Control of Pests. All rights reserved

    Identification of Turkish Isolate of the Entomopathogenic Fungi, Purpureocillium lilacinum (syn: Paecilomyces lilacinus) and its Effect on Potato Pests, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae) and Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae)

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    WOS: 000358899300019Potato (Solanum tuberosum L.) is one of the most important vegetable crops in Turkey as well in the world. Potato plants are attacked by a large number of insect pests such as aphids, beetles, leafhoppers and lepidopterous pests under both field and storage conditions. The Colorado potato beetle (CPB) [Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae)] and the potato tuber moth (PTM) [Phihorimaea operculella (Zeller) (Lepidoptera: Gelechiidae)] are the most destructive pests in potatoes grown areas. Many pesticides that used to control the potato pests are very toxic to environment and human. An alternative approach to the commercial pesticides is using biological agents like fungi. Purpureocillium lilacinum was described more than a century ago and is a commonly occurring fungus in soil. P. lilacinum (syn: Paecilomyces lilacinus) is the most widely tested fungus for the control of nematodes, aphids and insects. The fungus was determined in Turkey but its molecular identification has not been done yet. In this study, a Turkish isolate of P. lilacinum was identified by classical (morphologic and morphometric properties) and molecular methods. Also, the study concerned with the effect of different conidial concentrations of the fungal isolate on mortality rates of CPB and PTM at different temperatures. P. lilacinum was found to be most effective on the last larval instar of CPB and PTM (33.2 and 43.3% mortality, respectively) on 10th day of treatment with the fungal concentration of 108cfu ml(-1) at 25 degrees C. This fungus developed on all dead larvae and was highly susceptible at the tested temperatures, but its activity decreased at 15 degrees C. Findings of this study showed a potential of the fungus as a bioagent against the CPB and the PTM.Scientific and Technical Research Council of TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [TUBITAK 111O784]A part of this study (preparation of P. lilacinum) was supported by the Scientific and Technical Research Council of Turkey (TUBITAK 111O784). Thanks are due to Drs. F.D. Erdogus and M. Alkan (Dept. of Entomology, Plant Protection Central Research Institute, Ankara-Turkey) for their assisstance throughout this study

    Catalytic activity of SBA-15-grafted indium tri-isopropoxide in chemoselective MPV reductions

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    WOS: 000357049300023Indium tri-isopropoxide-containing heterogeneous In(O (i) Pr)(3)-SBA-15 catalyst were synthesized by grafting method and were then used as catalyst in the Meerwein-Ponndorf-Verley (MPV) reduction of various carbonyl compounds using 2-propanol as the hydrogen transfer agent. The prepared new heterogeneous catalyst, In(O (i) Pr)(3)-SBA-15, was characterized in details by using XRD, Si-29 NMR,C-13 NMR, TEM, N-2 adsorption and ICP-OES. New heterogeneous catalyst has been studied in the chemoselective MPV reduction of unsaturated aldehydes and ketones. Good activity and selectivity to the reduced unsaturated alcohols, citronellol, cinnamalcohol, alpha-ionol, 3-methyl-2-butanol, geraniol, nerol were observed over indium tri-isopropoxide supported on silica. The In(O (i) Pr)(3)-SBA-15 catalyst is recyclable up to six cycles without any significant loss in its catalytic activity. Eventually, In(O (i) Pr)(3)-SBA-15 has been found that active catalyst in the MPV reactions of carbonyl compounds including unsaturated aldehydes and ketones with excellent conversion, selectivity and reusability.Scientific and Technical Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [113Z389]The financial support of Scientific and Technical Research Council of Turkey (TUBITAK) under Grant No. 113Z389 is gratefully acknowledged

    New In(O i Pr)(3)-MCM-41 heterogeneous catalyst in MPV reductions of unsaturated carbonyl compounds: effect of mesoporous SBA-15 and MCM-41 as supporting surfaces on catalytic activity of In(O i Pr)(3)

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    KARATAS, ERHAN/0000-0003-2467-9700WOS: 000394347200010Indium tri-isopropoxide, In(O (i) Pr)(3), was immobilized on mesoporous material, MCM-41, and denoted as "In(O (i) Pr)(3)-MCM-41". This new heterogeneous catalyst was characterized by XRD, Si-29 NMR-, N-2 adsorption-desorption isotherms and ICP-OES techniques. The new heterogeneous catalyst, In(O (i) Pr)(3)-MCM-41, was tested for the capable of catalyzed Meerwein-Ponndorf-Verley (MPV) reduction of unsaturated aldehydes and ketones with low catalyst loadings under mild conditions and showed good to excellent catalytic activities. Also, effect of supporting surfaces, both of SBA-15 and MCM-41, on catalytic activity of In(O (i) Pr)(3) were examined. In(O (i) Pr)(3)-SBA-15 heterogeneous catalyst in comparison with the In(O (i) Pr)(3)-MCM-41 catalyst, display comparatively higher catalytic activity in the MPV reduction of unsaturated aldehydes and ketones. Also, similiar reaction times and selectivities for the unsaturated alcohols were obtained with the In(O (i) Pr)(3)-SBA-15 catalyst compared with the In(O (i) Pr)(3)-MCM-41 catalyst. The reason for the lower activity observed for MCM-41 sample may be due to smaller pore size of the In(O (i) Pr)(3)-MCM-41 catalyst as compared with In(O (i) Pr)(3)-SBA-15 catalyst can creat restrict site accessibility for the carbonyl compounds. Eventually, effect of supporting surfaces, SBA-15 and MCM-41, on catalytic activity of In(O (i) Pr)(3) insignificant for MPV reduction of unsaturated carbonyl compounds.Scientific and Technical Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [113Z389]The financial support of Scientific and Technical Research Council of Turkey (TUBITAK) under Grant No. 113Z389 is gratefully acknowledged
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