Arsenic interactions with lipid particles containing iron (2009)
Rahman, Mahbub Mohammad, Rahman, Farzana, Sansom, Lloyd N., Naidu, R., Schmidt, Otto
While arsenic is toxic to all multicellular organisms, some organisms become tolerant by an unknown mechanism. We have recently uncovered an inducible tolerance mechanism in insects, which is based...
Arsenic interactions with lipid particles containing iron (2009)
Rahman, Mahbub Mohammad, Rahman, Farzana, Sansom, Lloyd N., Naidu, R., Schmidt, Otto
While arsenic is toxic to all multicellular organisms, some organisms become tolerant by an unknown mechanism. We have recently uncovered an inducible tolerance mechanism in insects, which is based...
Sohani, Mohammad Mehdi, Schenk, C. J., Schultz, Carolyn Jane, Schmidt, Otto
© 2009 German Botanical Society and Royal Botanical Society of the Netherlands
Sohani, Mohammad Mehdi, Schenk, C. J., Schultz, Carolyn Jane, Schmidt, Otto
© 2009 German Botanical Society and Royal Botanical Society of the Netherlands
Hosseini, Reza, Schmidt, Otto, Keller, Michael Anthony
Reza Hosseini, Otto Schmidt & Michael A. Keller
Hosseini, Reza, Schmidt, Otto, Keller, Michael Anthony
Reza Hosseini, Otto Schmidt & Michael A. Keller
Rahman, Mahbub Mohammad, Roberts, Harry Leslie Scougall, Schmidt, Otto
With resistance of insect pests to synthetic pesticides on the increase, the role of parasitoid wasps as biological control agents is expanding in pest and resistance management strategies. One of...
Rahman, Mahbub Mohammad, Roberts, Harry Leslie Scougall, Schmidt, Otto
M. Mahbubur Rahman, Harry L.S. Roberts and Otto Schmidt
Rahman, Mahbub Mohammad, Roberts, Harry Leslie Scougall, Schmidt, Otto
With resistance of insect pests to synthetic pesticides on the increase, the role of parasitoid wasps as biological control agents is expanding in pest and resistance management strategies. One of...
Rahman, Mahbub Mohammad, Roberts, Harry Leslie Scougall, Schmidt, Otto
M. Mahbubur Rahman, Harry L.S. Roberts and Otto Schmidt
Integration of cell adhesion reactions - a balance of forces? (2006)
Schmidt, Otto, Schreiber, Andreas Wolfgang
The rearrangement of receptors by oligomeric adhesion molecules constitutes a configurational mechanism able to sculpture membranes and dislocate receptors from cytoplasmic anchorage. This provides a...
Recognition and inactivation of LPS by lipophorin particles (2006)
Ma, Gang, Hay, Douglas, Li, Dongmei, Asgari, Sassan, Schmidt, Otto
Lipophorin is the major lipid carrier in insects, but various observations indicate that lipophorin is also involved in immune reactions. To examine a possible role of lipophorin in defence...
Cell-free immune reactions in insects (2006)
Rahman, Mohammad Mahbubur, Ma, Gang, Roberts, H. L. S., Schmidt, Otto
Insects, like many other multicellular organisms, are able to recognise and inactivate potential pathogens and toxins in the absence of cells. Here we show that the recognition and inactivation of...
Zhang, G. M., Schmidt, Otto, Asgari, Sassan
During oviposition, most endoparasitoid wasps inject maternal factors into their hosts to interfere with host immune reactions and ensure successful development of their progeny. Since encapsulation...
Cell-free immune reactions in insects (2006)
Rahman, Mohammad Mahbubur, Ma, Gang, Roberts, H. L. S., Schmidt, Otto
Insects, like many other multicellular organisms, are able to recognise and inactivate potential pathogens and toxins in the absence of cells. Here we show that the recognition and inactivation of...
Recognition and inactivation of LPS by lipophorin particles (2006)
Ma, Gang, Hay, Douglas, Li, Dongmei, Asgari, Sassan, Schmidt, Otto
Lipophorin is the major lipid carrier in insects, but various observations indicate that lipophorin is also involved in immune reactions. To examine a possible role of lipophorin in defence...
Integration of cell adhesion reactions - a balance of forces? (2006)
Schmidt, Otto, Schreiber, Andreas Wolfgang
The rearrangement of receptors by oligomeric adhesion molecules constitutes a configurational mechanism able to sculpture membranes and dislocate receptors from cytoplasmic anchorage. This provides a...
Zhang, G. M., Schmidt, Otto, Asgari, Sassan
During oviposition, most endoparasitoid wasps inject maternal factors into their hosts to interfere with host immune reactions and ensure successful development of their progeny. Since encapsulation...
Schmidt, Otto, Li, D., Beck, Markus H., Kinuthia, Wanja, Bellati, Judy, Roberts, H. L. S.
The ichneumonid endoparasitoid Venturia canescens successfully develops inside the hemocoel of another insect by using maternal protein secretions, including nucleic acid-free virus-like particles...
Ma, Gang, Roberts, H. L. S., Sarjan, M., Featherstone, Nicola Elaine, Lahnstein, Jelle, Akhurst, R., ...
Bacillus thuringiensis endotoxins (Bt-toxins) are the most important biopesticides used in controlling insect pests and vectors of diseases. The emergence of widespread resistance to Bt in some...
Schmidt, Otto, Li, D., Beck, Markus H., Kinuthia, Wanja, Bellati, Judy, Roberts, H. L. S.
The ichneumonid endoparasitoid Venturia canescens successfully develops inside the hemocoel of another insect by using maternal protein secretions, including nucleic acid-free virus-like particles...
Ma, Gang, Roberts, H. L. S., Sarjan, M., Featherstone, Nicola Elaine, Lahnstein, Jelle, Akhurst, R., ...
Bacillus thuringiensis endotoxins (Bt-toxins) are the most important biopesticides used in controlling insect pests and vectors of diseases. The emergence of widespread resistance to Bt in some...
Are insect immune suppressors driving cellular uptake reactions? (2005)
Schmidt, Otto, Glatz, Richard V., Asgari, Sassan, Roberts, Harry L.S.
Many insect parasitoids that deposit their eggs inside immature stages of other insect species inactivate the cellular host defence to protect the growing embryo from encapsulation. Suppression of...
Mechanisms of inducible resistance against Bacillus thuringiensis endotoxins in invertebrates (2005)
Ma, Gang, Muhammad, Sarjan, Preston, Christopher, Asgari, Sassan, Schmidt, Otto
Abstract Resistance in insect pests against the endotoxin of Bacillus thuringiensis (Berliner) (Bt) is a major threat to the usefulness of this biopesticide, both used as traditional formulations and...
Are insect immune suppressors driving cellular uptake reactions? (2005)
Schmidt, Otto, Glatz, Richard V., Asgari, Sassan, Roberts, Harry L.S.
Many insect parasitoids that deposit their eggs inside immature stages of other insect species inactivate the cellular host defence to protect the growing embryo from encapsulation. Suppression of...
Korayem, A. M., Fabbri, M., Takahashi, K., Scherfer, C., Lindgren, M., Schmidt, Otto, ...
Our studies on the developmental regulation of glycosylation in Drosophila melanogaster led us to identify and characterize gp150, an ecdysone-regulated mucin that is found in hemocytes, the gut...
Endoparasitoid insects introduce maternal factors into the body of their host at oviposition to suppress cellular defences for the protection of the developing parasitoid. We have shown that...
Lectin-induced haemocyte inactivation in insects (2004)
Glatz, R. V., Roberts, H. L. S., Li, D., Sarjan, M., Theopold, U. J., Asgari, Sassan, ...
Most multimeric lectins are adhesion molecules, promoting attachment and spreading on surface glycodeterminants. In addition, some lectins have counter-adhesion properties, detaching already spread...
Lifetime egg maturation by host-deprived Venturia canescens (2004)
Roberts, Harry L. S., Schmidt, Otto
The study investigated egg maturation and deposition by the endoparasitoid wasp Venturia canescens under conditions of host deprivation. Female V. canescens maintained without hosts began to deposit...
Roberts, H. L. S., True, O., Schmidt, Otto
Using a molecular marker that allows the differentiation of two strains of the solitary endoparasitoid wasp Venturia canescens, the study investigated the influence of host mass and the time interval...
Reineke, A., Roberts, H. L. S., Schmidt, Otto
In a laboratory colony of the endoparasitic wasp Venturia canescens Grav. (Hymenoptera: Ichneumonidae), two genetically distinct lines (RP, RM) appear to coexist sympatrically. The two lines display...
Rahman, Mohammad Mahbubur, Roberts, H. L. S., Schmidt, Otto
We examined the survival and development of the endoparasitoid Venturia canescens in a Bt-tolerant laboratory strain of the flour moth Ephestia kuehniella, in which Bt-tolerance has been shown to be...
Coagulation in arthropods: defence, wound closure and healing (2004)
Theopold, U. J., Schmidt, Otto, Soderhall, K., Dushay, M. S.
Arthropods have open circulatory systems and must seal wounds and keep bacteria from entering the hemocoel using efficient clotting systems. Enzymes that crosslink the clot include transglutaminase,...
Evolution of polydnaviruses as insect immune suppressors (2004)
Glatz, R. V., Asgari, S., Schmidt, Otto
Polydnaviruses (PDVs) are endogenous particles that are used by some endoparasitic hymenoptera to disrupt host immunity and development. Recent analyses of encapsidated PDV genes have increased the...
Coagulation in arthropods: defence, wound closure and healing (2004)
Theopold, U. J., Schmidt, Otto, Soderhall, K., Dushay, M. S.
Arthropods have open circulatory systems and must seal wounds and keep bacteria from entering the hemocoel using efficient clotting systems. Enzymes that crosslink the clot include transglutaminase,...
Lectin-induced haemocyte inactivation in insects (2004)
Glatz, R. V., Roberts, H. L. S., Li, D., Sarjan, M., Theopold, U. J., Asgari, Sassan, ...
Most multimeric lectins are adhesion molecules, promoting attachment and spreading on surface glycodeterminants. In addition, some lectins have counter-adhesion properties, detaching already spread...
Rahman, Mohammad Mahbubur, Roberts, H. L. S., Schmidt, Otto
We examined the survival and development of the endoparasitoid Venturia canescens in a Bt-tolerant laboratory strain of the flour moth Ephestia kuehniella, in which Bt-tolerance has been shown to be...
Roberts, H. L. S., True, O., Schmidt, Otto
Using a molecular marker that allows the differentiation of two strains of the solitary endoparasitoid wasp Venturia canescens, the study investigated the influence of host mass and the time interval...
Korayem, A. M., Fabbri, M., Takahashi, K., Scherfer, C., Lindgren, M., Schmidt, Otto, ...
Our studies on the developmental regulation of glycosylation in Drosophila melanogaster led us to identify and characterize gp150, an ecdysone-regulated mucin that is found in hemocytes, the gut...
Endoparasitoid insects introduce maternal factors into the body of their host at oviposition to suppress cellular defences for the protection of the developing parasitoid. We have shown that...
Evolution of polydnaviruses as insect immune suppressors (2004)
Glatz, R. V., Asgari, S., Schmidt, Otto
Polydnaviruses (PDVs) are endogenous particles that are used by some endoparasitic hymenoptera to disrupt host immunity and development. Recent analyses of encapsidated PDV genes have increased the...
Lifetime egg maturation by host-deprived Venturia canescens (2004)
Roberts, Harry L. S., Schmidt, Otto
The study investigated egg maturation and deposition by the endoparasitoid wasp Venturia canescens under conditions of host deprivation. Female V. canescens maintained without hosts began to deposit...
Reineke, A., Roberts, H. L. S., Schmidt, Otto
In a laboratory colony of the endoparasitic wasp Venturia canescens Grav. (Hymenoptera: Ichneumonidae), two genetically distinct lines (RP, RM) appear to coexist sympatrically. The two lines display...
Evolution of polydnaviruses as insect immune suppressors (2004)
Glatz, Richard V., Asgari, Sassan, Schmidt, Otto
Polydnaviruses (PDVs) are endogenous particles that are used by some endoparasitic hymenoptera to disrupt host immunity and development. Recent analyses of encapsidated PDV genes have increased the...
Evolution of polydnaviruses as insect immune suppressors (2004)
Glatz, Richard V., Asgari, Sassan, Schmidt, Otto
Polydnaviruses (PDVs) are endogenous particles that are used by some endoparasitic hymenoptera to disrupt host immunity and development. Recent analyses of encapsidated PDV genes have increased the...
Asgari, Sassan, Zhang, G., Zareie, R., Schmidt, Otto
Activation of prophenoloxidase (proPO) in insects is a defense mechanism against intruding microorganisms and parasites. Pattern recognition molecules induce activation of an enzymatic cascade...
Possible function of two insect phospholipid-hydroperoxide glutathione peroxidases (2003)
Li, D., Blasevich, F., Theopold, U. J., Schmidt, Otto
We compared the functional properties of two insect members of the phospholipid hydroperoxide glutathione peroxidases (PHGPx) family, VLP1, a major component of virus-like particles from the...
Is cell surface calreticulin involved in phagocytosis by insect hemocytes? (2003)
The innate immune system of insects consists of humoral and cellular components involved in the recognition of and responses to intruding foreign micro- or macroorganisms. Several molecules have been...
Possible function of two insect phospholipid-hydroperoxide glutathione peroxidases (2003)
Li, D., Blasevich, F., Theopold, U. J., Schmidt, Otto
We compared the functional properties of two insect members of the phospholipid hydroperoxide glutathione peroxidases (PHGPx) family, VLP1, a major component of virus-like particles from the...
Is cell surface calreticulin involved in phagocytosis by insect hemocytes? (2003)
The innate immune system of insects consists of humoral and cellular components involved in the recognition of and responses to intruding foreign micro- or macroorganisms. Several molecules have been...
Asgari, Sassan, Zhang, G., Zareie, R., Schmidt, Otto
Activation of prophenoloxidase (proPO) in insects is a defense mechanism against intruding microorganisms and parasites. Pattern recognition molecules induce activation of an enzymatic cascade...
Asgari, Sassan, Zhang, Guangmei M., Schmidt, Otto
Multipartite nucleic acid-containing virus-like particles, known as polydnaviruses, are special structures produced by female parasitoid wasps to deliver wasp components into the body of their host...
Glatz, Richard, Schmidt, Otto, Asgari, Sassan
Polydnaviruses are essential for the survival of many Ichneumonoid endoparasitoids, providing active immune suppression of the host in which parasitoid larvae develop. The Cotesia rubecula bracovirus...
Asgari, Sassan, Zareie, Reza, Zhang, Guangmei M., Schmidt, Otto
Insects are important vectors of diseases with remarkable immune defense capabilities. Hymenopteran endoparasitoids are adapted to overcome the host defense system and, therefore, are useful sources...
Asgari, Sassan, Zhang, Guangmei M., Schmidt, Otto
Multipartite nucleic acid-containing virus-like particles, known as polydnaviruses, are special structures produced by female parasitoid wasps to deliver wasp components into the body of their host...
Glatz, Richard, Schmidt, Otto, Asgari, Sassan
Polydnaviruses are essential for the survival of many Ichneumonoid endoparasitoids, providing active immune suppression of the host in which parasitoid larvae develop. The Cotesia rubecula bracovirus...
Asgari, Sassan, Zareie, Reza, Zhang, Guangmei M., Schmidt, Otto
Insects are important vectors of diseases with remarkable immune defense capabilities. Hymenopteran endoparasitoids are adapted to overcome the host defense system and, therefore, are useful sources...
Polydnaviruses are associated with certain parasitoid wasps and are introduced into the body cavity of the host caterpillar during oviposition. Some of the viral genes are expressed in host tissues...
Li, D., Scherfer, C., Korayem, A. M., Zhao, Zeng Qi, Schmidt, Otto, Theopold, U. J.
Here we describe a novel approach to isolate proteins involved in insect hemolymph coagulation. In order to avoid problems in purifying clot proteins after they had been crosslinked, we performed an...
Asgari, Sassan, Reineke, A., Beck, Markus H., Schmidt, Otto
The definitive version is available at www.blackwell-synergy.com
Reineke, A., Asgari, Sassan, Ma, G., Beck, Markus H., Schmidt, Otto
The definitive version is available at www.blackwell-synergy.com
Polydnaviruses are associated with certain parasitoid wasps and are introduced into the body cavity of the host caterpillar during oviposition. Some of the viral genes are expressed in host tissues...
Li, D., Scherfer, C., Korayem, A. M., Zhao, Zeng Qi, Schmidt, Otto, Theopold, U. J.
Here we describe a novel approach to isolate proteins involved in insect hemolymph coagulation. In order to avoid problems in purifying clot proteins after they had been crosslinked, we performed an...
Asgari, Sassan, Reineke, A., Beck, Markus H., Schmidt, Otto
The definitive version is available at www.blackwell-synergy.com
Reineke, A., Asgari, Sassan, Ma, G., Beck, Markus H., Schmidt, Otto
The definitive version is available at www.blackwell-synergy.com
Theopold, U. J., Dorian, C., Schmidt, Otto
To explore a possible signal function of glycodeterminants and the tissue specificity of glycosylation in Drosophila melanogaster, hemomucin, a surface mucin previously isolated from cell lines was...
Beck, Markus H., Reineke, A., Lorenz, H., Theopold, U. J., Schmidt, Otto
The question whether different organisms are able to compete for the same resource is of fundamental importance to evolutionary biology. Sympatric co-existence of similar species on a single resource...
Theopold, U. J., Dorian, C., Schmidt, Otto
To explore a possible signal function of glycodeterminants and the tissue specificity of glycosylation in Drosophila melanogaster, hemomucin, a surface mucin previously isolated from cell lines was...
Beck, Markus H., Reineke, A., Lorenz, H., Theopold, U. J., Schmidt, Otto
The question whether different organisms are able to compete for the same resource is of fundamental importance to evolutionary biology. Sympatric co-existence of similar species on a single resource...
Phasenumwandlungen und Diffusion unter hydrostatischem Druck. (1965)
Berlin, T. U., F. f. Bergbau u. Hüttenw., Diss. v. 24. Febr. 1965.
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Göttingen, Med. F., Diss. v. 10. Juli 1945 (Nicht f. d. Austausch).
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