Insect Plant Relationships
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Does inter-plant variation in sprouting time affect the growth/reproduction trade-off and herbivory in a tropical tree species?
ABSTRACT The timing of phenological events varies within and among populations, affecting the performance of individual plants differently. We evaluated the effects of relative variation in sprouting time on the display of reproductive events, vegetative growth and herbivory in Copaifera langsdorffii (Fabaceae). A total of 93 trees of C. langsdorffii was mon
Acta Bot. Bras.. Publicado em: 10/11/2016
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2. Clonagem, caracterização e expressão de genes envolvidos na síntese de compostos isoprenóides em Eucalyptus grandis
Isoprenoids are essential to all organisms and are the most structurally and functionally diverse group of plant metabolites. In plants, more than 30,000 compounds of this class were identified to date. All plants produce isoprenoids that can play essential roles as carotenoids, chlorophylls and plastoquinone (photosynthesis); ubiquinone (respiration); regul
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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3. Experimental clipping of Chromolaena pungens (Asteraceae) and its multitrophic effects / Poda experimental de Chromolaena pungens (Asteraceae) e seus efeitos multitroficos
Natural or human-induced disturbances may promote plant phenotypic modifications, developmental and phenological changes which, in turn, may influence herbivores, predators and pollinators. Abiotic factors, especially nutrient availability, may also influence plant recovery. In this study, we evaluated plant regrowth and arthropod responses to experimental c
Publicado em: 2007
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4. Biochemistry answer of caterpillars of Thyrinteina leucoceraea (Lepidoptera: Geometridae), fed with the serine-proteinases inhibitor benzamidine / Resposta bioquímica de lagartas de Thyrinteina leucoceraea (Lepidoptera: Geometridae), submetidas ao inibidor de serinoproteases benzamidina
The insects may cause considerable losses to plants, necessitating the control of these pests. However, some insects inhabit plants without causing considerable losses. For example, Thyrinteina leucoceraea, native insect, inhabit guava plants, native Myrtaceae harbor, and dont need to be controled. The Eucalyptus ssp., however, is a novel Myrtaceae host in B
Publicado em: 2006
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5. Alcaloides pirrolizidinicos utilizados por insetos na defesa quimica contra predadores vertebrados e invertebrados
Pyrrolizidine Alkaloids (PAs) are secondary plant compounds with a unique role in the interaction between plants, herbivorous insects, and their natural enemies relationships. The chemical defense due to PAs in Arctiidae moths and butterflies of sub-families Danainae and Ithomiinae (Nymphalidae) has been investigated with regards to vertebrate and invertebra
Publicado em: 2000
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6. Ecologia quimica e coevolução na interface Traidini (Papilionidae)/ Aristolochia (Aristolochiaceae)
Since Ehrlich and Raven s paper on butterflv plant coevolution (1964) few works have shown the existence of this phenomenon; generally, colonization seems responsible for present patterns of insect/plant relationships. The object of this work is the studv of chemical ecology of the Troidini/Aristolochia interface: a restricted group of herbivores specialized
Publicado em: 1992
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7. Composição e tamanho de faunas associadas a capitulos de compostas
Composition and species richness of phytophagous insects associated with flowerheads of Compositae were investigated in samples of 70 plant species, most of them in the Astereae, Eupatorieae, Heliantheae, Senecioneae and Vernonieae. Sampled plants ranged from highly endemic species to widespread ones To investigate the effect of macrohabitat on the associate
Publicado em: 1988
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8. Molecular cloning of a family of xenobiotic-inducible drosophilid cytochrome P450s: Evidence for involvement in host-plant allelochemical resistance
Cytochrome P450s constitute a superfamily of genes encoding mostly microsomal hemoproteins that play a dominant role in the metabolism of a wide variety of both endogenous and foreign compounds. In insects, xenobiotic metabolism (i.e., metabolism of insecticides and toxic natural plant compounds) is known to involve members of the CYP6 family of cytochrome P
The National Academy of Sciences of the USA.
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9. Relationships among the positive strand and double-strand RNA viruses as viewed through their RNA-dependent RNA polymerases.
The sequences of 50 RNA-dependent RNA polymerases (RDRPs) from 43 positive strand and 7 double strand RNA (dsRNA) viruses have been compared. The alignment permitted calculation of distances among the 50 viruses and a resultant dendrogram based on every amino acid, rather than just those amino acids in the conserved motifs. Remarkably, a large subgroup of th
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10. Physical map of the genome of sonchus yellow net virus, a plant rhabdovirus with six genes and conserved gene junction sequences.
We provide evidence that a plant rhabdovirus, sonchus yellow net virus (SYNV), is similar to most animal rhabdoviruses in the order of structural genes and in the nucleotide sequences at the gene junctions but that it differs in the presence and location of a putative nonstructural gene. From the patterns of hybridization of a library of recombinant DNA clon
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11. Secondary (γ-Proteobacteria) Endosymbionts Infect the Primary (β-Proteobacteria) Endosymbionts of Mealybugs Multiple Times and Coevolve with Their Hosts
Mealybugs (Hemiptera, Coccoidea, Pseudococcidae) are plant sap-sucking insects that have within their body cavities specialized cells containing prokaryotic primary endosymbionts (P-endosymbionts). The P-endosymbionts have the unusual property of containing within their cytoplasm prokaryotic secondary endosymbionts (S-endosymbionts) [C. D. von Dohlen, S. Koh
American Society for Microbiology.