The Experts below are selected from a list of 3927 Experts worldwide ranked by ideXlab platform
Zvi Mendel - One of the best experts on this subject based on the ideXlab platform.
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seasonal history plant interactions and egg parasitism of the variegated Caper bug stenozygum coloratum klug heteroptera pentatomidae
Agricultural and Forest Entomology, 2016Co-Authors: Shahar Samra, Murad Ghanim, Alex Protasov, Zvi MendelAbstract:The variegated Caper bug Stenozygum coloratum Klug is common in the Middle East, where it is a minor agricultural pest. Recently, it was found that S. coloratum is an alternative host for the egg parasitoid Ooencyrtus pityocampae Mercet, an important natural enemy of the pine processionary moth Thaumetopoea wilkinsoni Tams, a major pest of pines. This discovery, coupled with the general lack of knowledge of S. coloratum, prompted the present study, which focused on seasonal activity of S. coloratum in Israeli pine forests, bidirectional interactions between the bug and its host the Caper plant Capparis spp., and parasitism of its eggs. Stenozygum coloratum activity lasted mainly from May to October, and was followed by an adult winter diapause. Individuals formed large aggregations, causing early withering of plants and a shortening their annual growth periods. Reproductive activity peaked in August and ended in September. Egg parasitism rates increased throughout this period. Several Ooencyrtus spp., including known natural enemies of various pests, parasitized the eggs of S. coloratum and other associated pentatomids found on the Caper plants. Thus, Capers probably serve as a refuge for these potentially important egg parasitoids. The potential of Caper plants and their fauna for biological control programmes is discussed.
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development reproduction host range and geographical distribution of the variegated Caper bug stenozygum coloratum hemiptera heteroptera pentatomidae
European Journal of Endocrinology, 2015Co-Authors: Shahar Samra, Murad Ghanim, Alex Protasov, Zvi MendelAbstract:The variegated Caper bug (CB) Stenozygum coloratum (Klug, 1845) is common in the Eastern Mediterranean region and a minor agricultural pest. CB eggs were recently shown to serve as alternative hosts for Ooencyrtus pityocampae Mercet, 1921, an important natural enemy of the pine processionary moth (PPM) Thaumetopoea wilkinsoni Tams, 1924 (Lepidoptera: Notodontidae). In this study various aspects of the life history of CB were studied, including its distribution, host range, development, reproduction and ability to develop on various cultivated species of plants. CB occurs in almost all areas and habitats in Israel, except in the coldest regions, attacking several Caper species (Capparis spp.). When reared on Capparis zoharyi at 25°C, one generation lasted 6 weeks and females laid a single 12-egg cluster every 3 days. Decreases in temperature, but not changes in day length, terminated reproductive activity. CB nymphs survived for up to three months, or even completed their development, on some agricultural plants. However, reproductive activity was initiated only if adults were fed Capers. These findings emphasize the importance of Capers in the CB life cycle and account for why other plants are rarely attacked. These plants may serve as a temporary refuge for CB when Capers are scarce or unsuitable, mainly late in the season. Morphology of developmental stages, egg deposition, cannibalistic behaviour, sex ratio and effects of temperature on egg production were also studied. The possibility of using CB for enhancing the biological control of PPM is discussed.
Meghan Lybecker - One of the best experts on this subject based on the ideXlab platform.
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the rna binding protein Caper is required for sensory neuron development in drosophila melanogaster
Developmental Dynamics, 2017Co-Authors: Eugenia C Olesnicky, Jeremy M Bono, Laura Bell, Logan T Schachtner, Meghan LybeckerAbstract:Background: Alternative splicing mediated by RNA-binding proteins (RBPs) is emerging as a fundamental mechanism for the regulation of gene expression. Alternative splicing has been shown to be a widespread phenomenon that facilitates the diversification of gene products in a tissue specific manner. Although defects in alternative splicing are rooted in many neurological disorders, only a small fraction of splicing factors have been investigated in detail. Results: We find that the splicing factor Caper is required for the development of multiple different mechanosensory neuron subtypes at multiple life stages in Drosophila melanogaster. Disruption of Caper function causes defects in dendrite morphogenesis of larval dendrite arborization neurons, neuronal positioning of embryonic proprioceptors, as well as the development and maintenance of adult mechanosensory bristles. Additionally, we find that Caper dysfunction results in aberrant locomotor behavior in adult flies. Transcriptome-wide analyses further support a role for Caper in alternative isoform regulation of genes that function in neurogenesis. Conclusions: Our results provide the first evidence for a fundamental and broad requirement for the highly conserved splicing factor Caper in the development and maintenance of the nervous system and provide a framework for future studies on the detailed mechanism of Caper mediated RNA regulation. This article is protected by copyright. All rights reserved.
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The RNA‐binding protein Caper is required for sensory neuron development in Drosophila melanogaster
Developmental Dynamics, 2017Co-Authors: Eugenia C Olesnicky, Jeremy M Bono, Laura Bell, Logan T Schachtner, Meghan LybeckerAbstract:Background: Alternative splicing mediated by RNA-binding proteins (RBPs) is emerging as a fundamental mechanism for the regulation of gene expression. Alternative splicing has been shown to be a widespread phenomenon that facilitates the diversification of gene products in a tissue specific manner. Although defects in alternative splicing are rooted in many neurological disorders, only a small fraction of splicing factors have been investigated in detail. Results: We find that the splicing factor Caper is required for the development of multiple different mechanosensory neuron subtypes at multiple life stages in Drosophila melanogaster. Disruption of Caper function causes defects in dendrite morphogenesis of larval dendrite arborization neurons, neuronal positioning of embryonic proprioceptors, as well as the development and maintenance of adult mechanosensory bristles. Additionally, we find that Caper dysfunction results in aberrant locomotor behavior in adult flies. Transcriptome-wide analyses further support a role for Caper in alternative isoform regulation of genes that function in neurogenesis. Conclusions: Our results provide the first evidence for a fundamental and broad requirement for the highly conserved splicing factor Caper in the development and maintenance of the nervous system and provide a framework for future studies on the detailed mechanism of Caper mediated RNA regulation. This article is protected by copyright. All rights reserved.
Shahar Samra - One of the best experts on this subject based on the ideXlab platform.
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seasonal history plant interactions and egg parasitism of the variegated Caper bug stenozygum coloratum klug heteroptera pentatomidae
Agricultural and Forest Entomology, 2016Co-Authors: Shahar Samra, Murad Ghanim, Alex Protasov, Zvi MendelAbstract:The variegated Caper bug Stenozygum coloratum Klug is common in the Middle East, where it is a minor agricultural pest. Recently, it was found that S. coloratum is an alternative host for the egg parasitoid Ooencyrtus pityocampae Mercet, an important natural enemy of the pine processionary moth Thaumetopoea wilkinsoni Tams, a major pest of pines. This discovery, coupled with the general lack of knowledge of S. coloratum, prompted the present study, which focused on seasonal activity of S. coloratum in Israeli pine forests, bidirectional interactions between the bug and its host the Caper plant Capparis spp., and parasitism of its eggs. Stenozygum coloratum activity lasted mainly from May to October, and was followed by an adult winter diapause. Individuals formed large aggregations, causing early withering of plants and a shortening their annual growth periods. Reproductive activity peaked in August and ended in September. Egg parasitism rates increased throughout this period. Several Ooencyrtus spp., including known natural enemies of various pests, parasitized the eggs of S. coloratum and other associated pentatomids found on the Caper plants. Thus, Capers probably serve as a refuge for these potentially important egg parasitoids. The potential of Caper plants and their fauna for biological control programmes is discussed.
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development reproduction host range and geographical distribution of the variegated Caper bug stenozygum coloratum hemiptera heteroptera pentatomidae
European Journal of Endocrinology, 2015Co-Authors: Shahar Samra, Murad Ghanim, Alex Protasov, Zvi MendelAbstract:The variegated Caper bug (CB) Stenozygum coloratum (Klug, 1845) is common in the Eastern Mediterranean region and a minor agricultural pest. CB eggs were recently shown to serve as alternative hosts for Ooencyrtus pityocampae Mercet, 1921, an important natural enemy of the pine processionary moth (PPM) Thaumetopoea wilkinsoni Tams, 1924 (Lepidoptera: Notodontidae). In this study various aspects of the life history of CB were studied, including its distribution, host range, development, reproduction and ability to develop on various cultivated species of plants. CB occurs in almost all areas and habitats in Israel, except in the coldest regions, attacking several Caper species (Capparis spp.). When reared on Capparis zoharyi at 25°C, one generation lasted 6 weeks and females laid a single 12-egg cluster every 3 days. Decreases in temperature, but not changes in day length, terminated reproductive activity. CB nymphs survived for up to three months, or even completed their development, on some agricultural plants. However, reproductive activity was initiated only if adults were fed Capers. These findings emphasize the importance of Capers in the CB life cycle and account for why other plants are rarely attacked. These plants may serve as a temporary refuge for CB when Capers are scarce or unsuitable, mainly late in the season. Morphology of developmental stages, egg deposition, cannibalistic behaviour, sex ratio and effects of temperature on egg production were also studied. The possibility of using CB for enhancing the biological control of PPM is discussed.
Murad Ghanim - One of the best experts on this subject based on the ideXlab platform.
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seasonal history plant interactions and egg parasitism of the variegated Caper bug stenozygum coloratum klug heteroptera pentatomidae
Agricultural and Forest Entomology, 2016Co-Authors: Shahar Samra, Murad Ghanim, Alex Protasov, Zvi MendelAbstract:The variegated Caper bug Stenozygum coloratum Klug is common in the Middle East, where it is a minor agricultural pest. Recently, it was found that S. coloratum is an alternative host for the egg parasitoid Ooencyrtus pityocampae Mercet, an important natural enemy of the pine processionary moth Thaumetopoea wilkinsoni Tams, a major pest of pines. This discovery, coupled with the general lack of knowledge of S. coloratum, prompted the present study, which focused on seasonal activity of S. coloratum in Israeli pine forests, bidirectional interactions between the bug and its host the Caper plant Capparis spp., and parasitism of its eggs. Stenozygum coloratum activity lasted mainly from May to October, and was followed by an adult winter diapause. Individuals formed large aggregations, causing early withering of plants and a shortening their annual growth periods. Reproductive activity peaked in August and ended in September. Egg parasitism rates increased throughout this period. Several Ooencyrtus spp., including known natural enemies of various pests, parasitized the eggs of S. coloratum and other associated pentatomids found on the Caper plants. Thus, Capers probably serve as a refuge for these potentially important egg parasitoids. The potential of Caper plants and their fauna for biological control programmes is discussed.
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development reproduction host range and geographical distribution of the variegated Caper bug stenozygum coloratum hemiptera heteroptera pentatomidae
European Journal of Endocrinology, 2015Co-Authors: Shahar Samra, Murad Ghanim, Alex Protasov, Zvi MendelAbstract:The variegated Caper bug (CB) Stenozygum coloratum (Klug, 1845) is common in the Eastern Mediterranean region and a minor agricultural pest. CB eggs were recently shown to serve as alternative hosts for Ooencyrtus pityocampae Mercet, 1921, an important natural enemy of the pine processionary moth (PPM) Thaumetopoea wilkinsoni Tams, 1924 (Lepidoptera: Notodontidae). In this study various aspects of the life history of CB were studied, including its distribution, host range, development, reproduction and ability to develop on various cultivated species of plants. CB occurs in almost all areas and habitats in Israel, except in the coldest regions, attacking several Caper species (Capparis spp.). When reared on Capparis zoharyi at 25°C, one generation lasted 6 weeks and females laid a single 12-egg cluster every 3 days. Decreases in temperature, but not changes in day length, terminated reproductive activity. CB nymphs survived for up to three months, or even completed their development, on some agricultural plants. However, reproductive activity was initiated only if adults were fed Capers. These findings emphasize the importance of Capers in the CB life cycle and account for why other plants are rarely attacked. These plants may serve as a temporary refuge for CB when Capers are scarce or unsuitable, mainly late in the season. Morphology of developmental stages, egg deposition, cannibalistic behaviour, sex ratio and effects of temperature on egg production were also studied. The possibility of using CB for enhancing the biological control of PPM is discussed.
Alex Protasov - One of the best experts on this subject based on the ideXlab platform.
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seasonal history plant interactions and egg parasitism of the variegated Caper bug stenozygum coloratum klug heteroptera pentatomidae
Agricultural and Forest Entomology, 2016Co-Authors: Shahar Samra, Murad Ghanim, Alex Protasov, Zvi MendelAbstract:The variegated Caper bug Stenozygum coloratum Klug is common in the Middle East, where it is a minor agricultural pest. Recently, it was found that S. coloratum is an alternative host for the egg parasitoid Ooencyrtus pityocampae Mercet, an important natural enemy of the pine processionary moth Thaumetopoea wilkinsoni Tams, a major pest of pines. This discovery, coupled with the general lack of knowledge of S. coloratum, prompted the present study, which focused on seasonal activity of S. coloratum in Israeli pine forests, bidirectional interactions between the bug and its host the Caper plant Capparis spp., and parasitism of its eggs. Stenozygum coloratum activity lasted mainly from May to October, and was followed by an adult winter diapause. Individuals formed large aggregations, causing early withering of plants and a shortening their annual growth periods. Reproductive activity peaked in August and ended in September. Egg parasitism rates increased throughout this period. Several Ooencyrtus spp., including known natural enemies of various pests, parasitized the eggs of S. coloratum and other associated pentatomids found on the Caper plants. Thus, Capers probably serve as a refuge for these potentially important egg parasitoids. The potential of Caper plants and their fauna for biological control programmes is discussed.
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development reproduction host range and geographical distribution of the variegated Caper bug stenozygum coloratum hemiptera heteroptera pentatomidae
European Journal of Endocrinology, 2015Co-Authors: Shahar Samra, Murad Ghanim, Alex Protasov, Zvi MendelAbstract:The variegated Caper bug (CB) Stenozygum coloratum (Klug, 1845) is common in the Eastern Mediterranean region and a minor agricultural pest. CB eggs were recently shown to serve as alternative hosts for Ooencyrtus pityocampae Mercet, 1921, an important natural enemy of the pine processionary moth (PPM) Thaumetopoea wilkinsoni Tams, 1924 (Lepidoptera: Notodontidae). In this study various aspects of the life history of CB were studied, including its distribution, host range, development, reproduction and ability to develop on various cultivated species of plants. CB occurs in almost all areas and habitats in Israel, except in the coldest regions, attacking several Caper species (Capparis spp.). When reared on Capparis zoharyi at 25°C, one generation lasted 6 weeks and females laid a single 12-egg cluster every 3 days. Decreases in temperature, but not changes in day length, terminated reproductive activity. CB nymphs survived for up to three months, or even completed their development, on some agricultural plants. However, reproductive activity was initiated only if adults were fed Capers. These findings emphasize the importance of Capers in the CB life cycle and account for why other plants are rarely attacked. These plants may serve as a temporary refuge for CB when Capers are scarce or unsuitable, mainly late in the season. Morphology of developmental stages, egg deposition, cannibalistic behaviour, sex ratio and effects of temperature on egg production were also studied. The possibility of using CB for enhancing the biological control of PPM is discussed.
