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Impact of a gall midge Parkiamyia paraensis (Diptera, Cecidomyiidae) on the Amazonian plant Parkia pendula (Fabaceae)
Fernandes, G. Wilson;Santos, Jean Carlos;Castro, Fabiana Marize C.;Castilho, Alexandre;
Revista Brasileira de Entomologia , 2007, DOI: 10.1590/S0085-56262007000400011
Abstract: we observed the occurrence of large numbers of galls induced by parkiamyia paraensis (diptera, cecidomyiidae) on the leaflets of parkia pendula (fabaceae) in northern para, brazil. we addressed two questions in this study: i) what is the proportion of attacked plants in the field, and nursery conditions?; and ii) what is the impact of galls on the host plant? an average of 86% of the plants were galled in the field. galled p. pendula were distinct from healthy individuals due to their prostrated architecture and death of terminal shoots. approximately 50% of the total available leaves and 35% leaflets were attacked by p. paraensis on saplings under nursery conditions. each one-year old plant supported an average of 1,300 galls, and an average of 60g allocated to galled tissue. otherwise, attacked individuals were taller and heavier than healthy plants. attacked plants weighed five times more than healthy plants. when the weight of the galls was removed, the total weight (aerial part without galls) of attacked plants was drastically reduced, indicating that most of the biomass of attacked plants was due to the attack by p. paraensis galls. although the data indicate a paradox, as young plants attacked by the galling herbivore appear to develop more vigorously than unattacked plants, we suggest that p. paraensis negatively affect p. pendula development.
Flower and fruit development of Parkia pendula (Fabaceae, Mimosoideae)
Piechowski, Daniel;Gottsberger, Gerhard;
Acta Botanica Brasilica , 2009, DOI: 10.1590/S0102-33062009000400025
Abstract: parkia pendula occurs in brazil in amazonia and in the northeastern atlantic forest. in the latter, its buds, nectar, and seedpod gum are discussed to be keystone resources for the mammalian fauna. to enhance the knowledge about these important nourishment sources, the aim of this study was to detect and describe distinct phases in the flower and pod development. the study was conducted in a 306 ha forest fragment in igarassu, pernambuco, northeastern brazil. six morphometrical variables were measured weekly at five inflorescences of two individuals from september 2003 to january 2004. eleven distinct developmental phases were identified in the 21 weeks lasting development from the very first inflorescences to mature pods and are described in detail. these phases are good predictors for the flowering and fruiting phenology of p. pendula, since they are easily distinguishable from the forest floor. furthermore, highly synchronized abortions of inflorescences, buds, and pods were observed which support the previously assumed predator satiation defense strategy in parkia.
Parkia pendula lectin as histochemistry marker for meningothelial tumour  [cached]
EIC Beltr?o,PL Medeiros,OG Rodrigues,J Figueredo-Silva
European Journal of Histochemistry , 2003, DOI: 10.4081/819
Abstract: Lectins have been intensively used in histochemical techniques for cell surface characterization. These proteins are involved in several biological processes and their use as histochemical markers have been evaluated since they can indicate differences in cell surfaces. Parkia pendula lectin (PpeL) was evaluated as histochemical marker for meningothelial meningioma biopsies. Tissue slices were incubated with PpeL conjugated to horseradish peroxidase (PpeL-HRP) and Concanavalin A-HRP (ConA-HPR) and the binding visualized with diaminobenzidine and hydrogen peroxide. The lectin-tissue binding was inhibited with D-glucose. PpeL showed to be a useful tool for the characterization of meningothelial tumour and clinico-pathological diagnosis.
The seedpod gum of Parkia pendula (Fabaceae) as a deadly trap for vertebrates
Daniel Piechowski,Gerhard Gottsberger
Biotemas , 2009,
Abstract: In the literature, it has been mentioned that the seedpod gum of Parkia pendula is used for catching birds. Here we present an observation of a Tropidurus hispidus individual that died after being glued to the substrate by the gum of P. pendula in the Atlantic Forest of Pernambuco State. This observation proves the enormous gluing performance of this gum, which can be considered as a potential danger for small vertebrates.
A new genus and species of gall midge (Diptera, Cecidomyiidae) associated with Microgramma vacciniifolia (Langsd. & Fisch.) Copel. (Polypodiaceae) from Brazil
Maia, Valéria Cid;Santos, Marcelo Guerra;
Revista Brasileira de Entomologia , 2011, DOI: 10.1590/S0085-56262011000100008
Abstract: a new genus and species of gall midge (diptera, cecidomyiidae) associated with microgramma vacciniifolia (langsd. & fisch.) copel. (polypodiaceae) from brazil. a new gall midge genus primadiplosis maia, gen. nov. and a new species, p. microgrammae maia,sp. nov., that induces galls on stems of the fern microgramma vacciniifolia (langsd. & fisch.) copel. are described from brazil (larva, pupa, male, female, and gall).
Germina??o de sementes de Parkia pendula (Willd.) Benth. ex Walp. (fabaceae) em diferentes temperaturas
Rosseto, Jociane;Albuquerque, Maria Cristina de Figueiredo e;Rondon Neto, Rubens Marques;Silva, Ivan Cleiton de Oliveira;
Revista árvore , 2009, DOI: 10.1590/S0100-67622009000100006
Abstract: the parkia pendula (willd.) benth. ex walp. is a forest species of the brazilian amazon, belonging to the fabaceae family, of regional importance. however, little is known about its species, despite its common commercial use. the objective of this work was to evaluate the germination of seeds in different temperatures. temperatures of 15, 20, 25, 30, 35 and 40 oc were utilized. the six treatments were completely randomized, with four repetitions of 25 seeds kept in paper towel to germinate and kept in transparent plastic bags in a germination chamber with photoperiod of eight hours. the method used was completely randomized with six treatments and four repetitions. germination was evaluated during seven days, being considered germinated the seeds that had emitted normal, larger than 5mm roots and that, at the same time, led to seedling formation. the following characteristics were analyzed: germination (%), average time for germination and normal formation of seedlings, seedling height and seedling dry matter. it was verified that the seeds of parkia pendula can germinate at the temperatures of 15, 20, 25, 30, 35 and 40 oc; however, temperatures of 15, 20 and 40 oc reduced the number of seedlings. at 30 oc, germination and number of seedlings of this species were maximized.
Substancias químicas com atividades alelopáticas presentes nas folhas de Parkia pendula (Leguminosae)
Souza Filho, A.P.S.;Fonseca, M.L.;ARRUDA, M.S.P.;
Planta Daninha , 2005, DOI: 10.1590/S0100-83582005000400002
Abstract: the objective of this paper was to isolate, identify and characterize the allelopathic activity of chemical compounds produced by parkia pendula. the allelopathic effects were evaluated on seed germination and radicle elongation of the weeds mimosa pudica and senna obtusifolia. the isolation process of the compounds involved the use of solvent in an increasing polarity order for extraction and the structural elucidation was carried out by nuclear magnetic resonance, copsy's and hetcor's spectrum. the bioassays were carried out under controlled conditions of 25 oc of temperature and 12-hour photoperiod for seed germination and 24-hour photoperiod for radicle elongation. the following allelochemicals were isolated and identified in p. pendula's leaves: 3,4,5-trimethoxybenzoic acid (s1), 3,4-dimethoxybenzoic acid (s2) and blumenol a (s3). comparatively, s1 and s2 showed greater allelopathic activity. the effects on radicle elongation were greater than those observed on seed germination. the isolated substances showed low inhibition potential on seed germination, especially on s. obtusifolia seeds. the allopathic inhibition effects were positively related to the concentration of the substances, although in some cases, these effects have not corresponded to the statistical differences.
Are gall midge species (Diptera, Cecidomyiidae) host-plant specialists?
Carneiro, Marco Antonio A.;Branco, Cristina S. A.;Braga, Carlos E. D.;Almada, Emmanuel D.;Costa, Marina B. M.;Maia, Valéria C.;Fernandes, Geraldo Wilson;
Revista Brasileira de Entomologia , 2009, DOI: 10.1590/S0085-56262009000300010
Abstract: despite the speciose fauna of gall-inducing insects in the neotropical region, little is known about their taxonomy. on the other hand, gall morphotypes associated with host species have been extensively used as a surrogate of the inducer species worldwide. this study reviewed the described gall midges and their galls to test the generalization on the use of gall morphotypes as surrogates of gall midge species in the brazilian fauna. we compiled taxonomic and biological data for 196 gall midge species recorded on 128 host plant species. ninety two percent of those species were monophagous, inducing galls on a single host plant species, whereas only 5.6% species were oligophagous, inducing galls on more than one congeneric host plant species. only four species induced galls on more than one host plant genus. we conclude that gall morphotypes associated with information on the host plant species and attacked organs are reliable surrogates of the gall-inducing species.
A new genus and species of gall midge (Diptera, Cecidomyiidae) associated with Myrcia retorta (Myrtaceae)
Maia, Valéria Cid;Fernandes, G. Wilson;Negreiros, Daniel;
Revista Brasileira de Entomologia , 2009, DOI: 10.1590/S0085-56262009000100010
Abstract: brethesia maia, new genus and brethesia myrciae maia, new species of cecidomyiidae are described and illustrated (male, female, pupa and gall) based on material collected in minas gerais (brazil). this new species induces leaf galls on myrcia retorta (myrtaceae).
Development of New Polymorphic Microsatellite Loci for the Barley Stem Gall Midge, Mayetiola hordei (Diptera: Cecidomyiidae) from an Enriched Library  [PDF]
Maha Mezghani-Khemakhem,Dhia Bouktila,Nathalie Casse,Houcine Maaroufi,Mohamed Makni,Hanem Makni
International Journal of Molecular Sciences , 2012, DOI: 10.3390/ijms131114446
Abstract: Using an enriched library method, seven polymorphic microsatellite loci were isolated from the barley stem gall midge, Mayetiola hordei. Polymorphism at loci was surveyed on 57 individual midges collected on barley in Tunisia. Across loci, polymorphism ranged from two to six alleles per locus. The observed heterozygosity varied between 0.070 and 0.877. Based on the number of alleles detected and the associated levels of heterozygosity, we believe that these loci will prove useful for population genetic studies on M. hordei.
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