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Condition of dorsoabdominal scent glands in adults of the true bugs from the taxon Pentatomomorpha (Heteroptera)
Křížková, Petra ; Vilímová, Jitka (advisor) ; Kment, Petr (referee)
Existence of larval dorsoabdominal scent glands (DAGs) together with occurence of adult metathoracic scent glands is one of the important autapomorphic characters of taxon Heteroptera within taxon Insecta. DAGs can persist until adults in some species of this taxon. The persistence of DAGs were proved also in members of infraorder Pentatomomorpha. Targets of this thesis are: collect the knowledge about persistent adult DAGs in selected representative members of important families of taxon Pentatomomorpha; study and compare the condition of the DAGs in the oldest larval instars and adults; clarify the significance of existence the openings of conducting ductules of proper glandular units in reservoir intima of DAGs in study of the persistence of these glands. For study were used stereomicroscope, light and scanning electron microscope. Key words: Pentatomomorpha, Heteroptera, dorsoabdominal scent glands, openings of conducting ductules of glandular units, larvae of 5th instar, persistence in adults, persistence patterns, light microscope, scanning electron microscope
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Condition of the larval scent glands in adults of the Heteroptera infraorders
Křížková, Petra ; Vilímová, Jitka (advisor) ; Kment, Petr (referee)
The Heteroptera scent glands system is formed by larval dorso-abdominal glands (= DAGs) and adult metathoracic glands ( = MTGs). The present study deals with a summary about occurrence of DAGs which are functional not only in larval but also in adult bugs, either proved or very likely. The part of general characteristics includes information about morphology, histology and functions of DAGs. The systematic review of published cases of DAGs' persitence in the adult stage represents the main part of the study. Recapitulations about possible positions of adult persistent DAGs and the characters used to prove gland functionality conclude the study. Based on the list of persistent adult DAGs, it is evident that they can be functional more often than was supposed. The DAGs functionality within heteropteran adults seems to be relatively widespread phenomenon, particularly in regards to a life in terestrial environment.
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Ontogeny of dorsoabdominal scent gland complex in the representatives of the Pentatomoidea (Heteroptera).
Kutalová, Kateřina
Dorso-abdominal scent glands (= DAGs) of larvae represent one of apomorphic characters of insects order Heteroptera. These glands can persist until adults in different taxa. The persistence of DAGs were proved in the members of the family Acanthosomatidae. The ontogenetic development of DAGs cuticular structures were studied in all stadia, from 1st larval instar to adults of acanthosomatid Elasmucha ferrugata (Fabricius, 1787). The study concerned external structures and sculptures associated with DAG ostiole and areas of their surfaces, as well as internal structures, shape of gland reservoir and number of conducting ductules of proper glandular units. The light microscope and stereomicroscope and scanning electron microscope were used for this comprehensive study.
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Ontogeny of dorsoabdominal scent gland complex in the representatives of the Pentatomoidea (Heteroptera).
Kutalová, Kateřina
Dorso-abdominal scent glands (= DAGs) of larvae represent one of apomorphic characters of insects order Heteroptera. These glands can persist until adults in different taxa. The persistence of DAGs were proved in the members of the family Acanthosomatidae. The ontogenetic development of DAGs cuticular structures were studied in all stadia, from 1st larval instar to adults of acanthosomatid Elasmucha ferrugata (Fabricius, 1787). The study concerned external structures and sculptures associated with DAG ostiole and areas of their surfaces, as well as internal structures, shape of gland reservoir and number of conducting ductules of proper glandular units. The light microscope and stereomicroscope and scanning electron microscope were used for this comprehensive study.
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Condition of dorsoabdominal scent glands in adults of the true bugs from the taxon Pentatomomorpha (Heteroptera)
Křížková, Petra ; Vilímová, Jitka (advisor) ; Kment, Petr (referee)
Existence of larval dorsoabdominal scent glands (DAGs) together with occurence of adult metathoracic scent glands is one of the important autapomorphic characters of taxon Heteroptera within taxon Insecta. DAGs can persist until adults in some species of this taxon. The persistence of DAGs were proved also in members of infraorder Pentatomomorpha. Targets of this thesis are: collect the knowledge about persistent adult DAGs in selected representative members of important families of taxon Pentatomomorpha; study and compare the condition of the DAGs in the oldest larval instars and adults; clarify the significance of existence the openings of conducting ductules of proper glandular units in reservoir intima of DAGs in study of the persistence of these glands. For study were used stereomicroscope, light and scanning electron microscope. Key words: Pentatomomorpha, Heteroptera, dorsoabdominal scent glands, openings of conducting ductules of glandular units, larvae of 5th instar, persistence in adults, persistence patterns, light microscope, scanning electron microscope
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Condition of the larval scent glands in adults of the Heteroptera infraorders
Křížková, Petra ; Vilímová, Jitka (advisor) ; Kment, Petr (referee)
The Heteroptera scent glands system is formed by larval dorso-abdominal glands (= DAGs) and adult metathoracic glands ( = MTGs). The present study deals with a summary about occurrence of DAGs which are functional not only in larval but also in adult bugs, either proved or very likely. The part of general characteristics includes information about morphology, histology and functions of DAGs. The systematic review of published cases of DAGs' persitence in the adult stage represents the main part of the study. Recapitulations about possible positions of adult persistent DAGs and the characters used to prove gland functionality conclude the study. Based on the list of persistent adult DAGs, it is evident that they can be functional more often than was supposed. The DAGs functionality within heteropteran adults seems to be relatively widespread phenomenon, particularly in regards to a life in terestrial environment.
|
|
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Ontogeny of dorsoabdominal scent gland complex in the representatives of the Pentatomoidea (Heteroptera).
Kutalová, Kateřina ; Vilímová, Jitka (advisor) ; Kment, Petr (referee)
Dorso-abdominal scent glands (= DAGs) of larvae represent one of apomorphic characters of insects order Heteroptera. These glands can persist until adults in different taxa. The persistence of DAGs were proved in the members of the family Acanthosomatidae. The ontogenetic development of DAGs cuticular structures were studied in all stadia, from 1st larval instar to adults of acanthosomatid Elasmucha ferrugata (Fabricius, 1787). The study concerned external structures and sculptures associated with DAG ostiole and areas of their surfaces, as well as internal structures, shape of gland reservoir and number of conducting ductules of proper glandular units. The light microscope and stereomicroscope and scanning electron microscope were used for this comprehensive study.
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