SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Cruz Neto,Oswaldo; Leal,Inara Roberta; Santos,Jean Carlos; Lopes,Ariadna Valentina.

ABSTRACT Host-parasite interactions between plants may reduce the vegetative and reproductive performance of the host plant. Although it is well established that parasitic plants may negatively affect the metabolism and the number of vegetative/reproductive structures of their hosts, the effects of this interaction on the reproductive characteristics of the host plant are poorly understood. Here we document the interaction between Cuscuta partita (Convolvulaceae) and its main host, Zornia diphylla (Fabaceae), in the Caatinga of northeastern Brazil. We measured diverse reproductive/vegetative attributes of Z. diphylla in 60 plots randomly distributed in patches that were parasitized and not parasitized by C. partita. Both vegetative and reproductive...

Tipo: Info:eu-repo/semantics/other

Palavras-chave: Caatinga; Cuscuta partita; Floral traits; Haustoria; Holoparasitic plants; Plant-plant interaction; Pollen viability; Reproductive success; Zornia diphylla.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100147

Distribution of the endophytic fungi community in leaves of Bauhinia brevipes (Fabaceae)

Hilarino,Mariana Patrícia Amorim; Silveira,Fernando Augusto de Oliveira e; Oki,Yumi; Rodrigues,Leonardo; Santos,Jean Carlos; Corrêa Junior,Ary; Fernandes,Geraldo Wilson; Rosa,Carlos Augusto.

Endophytic fungi represent large, yet unexplored components of biodiversity. This work evaluated the richness and the distribution of endophytes in the leaves of Bauhinia brevipes (Fabaceae). A total of 1110 colonies were recovered from the samples and grouped by their morphological traits into 126 taxa. The total number of taxa according to leaf development was: 102 in mature leaves, 93 in recently expanded leaves and 79 for unfolded leaves. The major endophyte genera were Phomopsis, followed by Dothiorella, Pestalotiopsis and Acremonium. The richness and the isolate numbers of endophytes were not statistically affected by leaf region. However, some taxa were leaf-age specific; six were isolated only from unfolded leaves, nine from recently expanded...

Relationship between gall-midge parasitism, plant vigor, and developmental instability in Ouratea polygyna Engl (Ochnaceae) in a patch of a Brazilian Atlantic Forest

Palavras-chave: Plant-endophyte interaction; Phomopsis; Tissue-recurrence; Endophyte richnes.

Ano: 2011

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062011000400008

Silva,Maíra Honorato de Moura; Almeida-Cortez,Jarcilene Silva de; Silva,Estevão Alves; Santos,Jean Carlos.

We tested the preference prediction of plant vigor hypothesis by examining the relationship between gall occurrence and leaf size. We also examined the effect of galls on leaf asymmetry, which is a measure of developmental instability. Gall occurrence did not increase with leaf size, thereby providing no support to the preference prediction. Galled leaves were significantly more asymmetric than ungalled leaves. Moreover, leaf asymmetry increased with both gall occurrence and gall size, indicating that galls boosted the stress levels in Ouratea polygyna.

Tipo: Info:eu-repo/semantics/other

Palavras-chave: Biotic disturbance; Cecidomyiidae; Leaf asymmetry; Preference prediction; Stress.

Ano: 2015

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000200274

Leaf phenotypic variation and developmental instability in relation to different light regimes

Venâncio,Henrique; Alves-Silva,Estevao; Santos,Jean Carlos.

ABSTRACT For pioneer plants, shaded habitats represent a stressful condition, where sunlight exposure is below the optimum level and so leaves expand in order to intercept a greater amount of light. We investigated changes in both phenotypic variation and stress of Bauhinia brevipes in sunny and shaded microhabitats. Leaf area was used as a measure of phenotypic variation, whereas leaf asymmetry (difference between right and left sides of leaves), was used as a measure of stress. We hypothesized an increase in leaf area and stress in shaded locations, which might indicate that B. brevipes was compensating for low light absorption, and elevated levels of stress, respectively. Plants in the sun fitted a fluctuating asymmetry pattern (normal distribution of...

Seed germination ecophysiology of the wild pineapple, Ananas ananassoides (Baker) L.B.Sm. (Bromeliaceae)

Palavras-chave: Antisymmetry; Bauhinia brevipes; Fluctuating asymmetry; Leaf morphometry; Sunlight exposure.

Ano: 2016

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000200296

Silveira,Fernando Augusto Oliveira; Santos,Jean Carlos; Fernandes,Geraldo Wilson.

In this study we investigated the effects of light, temperature, and storage on seed germination of the wild pineapple Ananasananassoides, an understorey species found in cerrado woodlands. Seeds were germinated at temperatures of 15, 20, 25, 30 and 35 ºC and a 12-hr photoperiod and continuous darkness for 30-d. Seeds were photoblastic and the optimum temperatures for germination were 25 and 30 ºC. Seeds stored for 12-mo at room temperature and at 4 ºC were set to germinate at optimum conditions. Germinability of stored seeds did not differ from that of recently collected seeds, regardless of storage temperature, indicating their physiological potential for seed bank formation. Our results suggest that as in tropical rainforests, light may be an important...

Gall-inducing insects from Atlantic Forest of Pernambuco, Northeastern Brazil

Palavras-chave: Cerrado; Photoblastism; Recruitment; Seed bank; Seed storage.

Ano: 2010

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062010000400026

Biota Neotropica

Santos,Jean Carlos; Almeida-Cortez,Jarcilene Silva de; Fernandes,Geraldo Wilson.

An inventory of gall inducing insects and their host plants in the Atlantic forest of Pernambuco, northeastern Brazil is presented. Samples of galls and their host plants were taken in six fragments of Atlantic forest. One hundred thirty-six different morphotypes of insect galls on 79 host plant species belonging to 35 plant families and 53 genera were recorded. The host plant families most attacked by galling insects were: Lecythidaceae, Myrtaceae, and Nyctaginaceae. The most frequent galling taxa were Diptera of the Cecidomyiidae family (95%), followed by Lepidoptera and Coleoptera. Galls occurred most frequently on leaves and stems, had globoid and elliptical shapes, green color and absence of trichomes on the external walls. The data indicate an...

Dragonflies and damselflies (Insecta: Odonata) from a Cerrado area at Triângulo Mineiro, Minas Gerais, Brazil

Palavras-chave: Biodiversity; Cecidomyiidae; Host plants; Insect galls; Herbivory.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000300020

Biota Neotropica

Borges,Lucas Rodrigues; Barbosa,Marcela Silva; Carneiro,Marco Antônio Alves; Vilela,Diogo Silva; Santos,Jean Carlos.

Abstract: Odonata is considered, among the aquatic insect orders, the second largest group in number of species. Its global richness is estimated in about 6,000 described species. The Brazilian richness represents around 14% of the world's odonatofauna, however, the knowledge on Brazilian dragonflies distribution is still poor. This study purpose an inventory of the dragonflies species present in aquatic habitats from a Preserved Area according to the Brazilian Forest Code, located in the Cerrado biome at Triângulo Mineiro, Minas Gerais. In the dry season, from April to June of 2017, we collected 680 specimens belonging to 36 species and six families. Among the collected species, Elasmothemis williamsoni was observed by the first time in Minas Gerais...

Odonate Communities of the Sucupira Reservoir, Rio Uberabinha, Minas Gerais, Brazil

Palavras-chave: Inventory; Biodiversity; Vereda; Odonata.

Ano: 2019

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000100304

Pap. Avulsos de Zool. (São Paulo)

Barbosa,Marcela Silva; Borges,Lucas Rodrigues; Vilela,Diogo Silva; Venâncio,Henrique; Santos,Jean Carlos.

Abstract Dragonflies and damselflies (Insecta: Odonata) are widely distributed among freshwater ecosystems of tropical and temperate environments. They are also particularly sensitive to anthropogenic changes. The objective of this study was to inventory the odonate fauna of a section of the Sucupira Reservoir on Rio Uberabinha, Uberlândia, Minas Gerais, Brazil, and to document the species composition of the odonate fauna during the dry and rainy seasons. The study also aimed to describe the distribution of the sampled species in Brazilian states. Sampling took place in August and September of 2017 (dry season) and in February and March of 2018 (rainy season), and recorded 860 individuals of 43 species belonging to 26 genera and six families. Six new...

Two new species of Lopesia Rübsaamen (Diptera, Cecidomyiidae) associated with Mimosa hostilis (Mimosaceae) in Brazil

Palavras-chave: Cerrado; Inventory; Damselfly; Dragonfly; Odonata.

Ano: 2019

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492019000100222

Maia,Valéria Cid; Fernandes,G. Wilson; Magalhães,Henrique; Santos,Jean Carlos.

Two new species of Lopesia Rübsaamen (Diptera, Cecidomyiidae) associated with Mimosa hostilis (Mimosaceae) in Brazil Two new species of Lopesia Rübsaamen (Diptera, Cecidomyiidae, Lopesiini), L. mimosae Maia, sp. nov. and L. pernambucensis Maia, sp. nov., that induce galls on Mimosa hostilis Benth. (Mimosaceae) are described and illustrated based on material from "caatinga" in Pernambuco, Brazil.

Richness of gall-inducing insects in the tropical dry forest (caatinga) of Pernambuco

Palavras-chave: Caatinga; Cecidomyiidae; Diptera; Lopesia; Mimosaceae.

Ano: 2010

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262010000400007

Santos,Jean Carlos; Almeida-Cortez,Jarcilene Silva de; Fernandes,G. Wilson.

Diversity of gall-inducing insects in the tropical dry forest (caatinga) of Pernambuco. We report on the richness of galling insects in the vegetation of caatinga of Pernambuco state, Brazil. We recorded 64 different types of galls collected primarily from leaves and stems of 48 species of host plants belonging to 17 families and 31 genera. The most common gall morphological types were spheroid and discoid, glabrous, predominantly green and with one chamber. The main gall inducing taxon was the Cecidomyiidae (Diptera). The results of this study contribute to existing knowledge of galling insect and host-plant diversity in caatinga.

Impact of a gall midge Parkiamyia paraensis (Diptera, Cecidomyiidae) on the Amazonian plant Parkia pendula (Fabaceae)

Palavras-chave: Cecidomyiidae; Host plants; Insect galls; Insect herbivore; Species richness.

Ano: 2011

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000100009

Fernandes,G. Wilson; Santos,Jean Carlos; Castro,Fabiana Marize C.; Castilho,Alexandre.

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...

Ants and their effects on an insect herbivore community associated with the inflorescences of Byrsonima crassifolia (Linnaeus) H.B.K. (Malpighiaceae)

Palavras-chave: Amazon; Herbivore impact; Insect galls; Porto Trombetas.

Ano: 2007

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262007000400011

Fernandes,G. Wilson; Fagundes,Marcílio; Greco,Magda K. Barcelos; Barbeitos,Marcos Soares; Santos,Jean Carlos.

The effects of ants on the insect community on inflorescences of Byrsonima crassifolia (Malpighiaceae) were tested in an ant exclusion experiment in a cerrado vegetation in southeastern Brazil. Forty-four species of insects (23 families) and nine species of ants (6 genera and 3 subfamilies) were found on the inflorescences of B. crassifolia. The exclusion of ants, primarily Camponotus sericeiventris and Camponotus spp., reduced the treehopper population to 20% of the original abundance. Ant exclusion and time influenced the abundance of chewing (Exclusion, P<0.001; Time, P<0.002), and sucking insects (Exclusion, P<0.02; Time, P<0.01). Twice as many chewing and sucking insects were found on ant-excluded inflorescences as compared to control...

Asphondylia fructicola, a new species of Cecidomyiidae (Diptera) associated with Solanum sp. (Solanaceae) from Brazil

Palavras-chave: Ant-treehopper mutualism; Cerrado; Community structure; Insect herbivory.

Ano: 2005

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262005000200011

Maia,Valéria Cid; Santos,Jean Carlos; Fernandes,G. Wilson.

Asphondylia fructicola sp. nov. is described and illustrated on the basis of the larva, pupa, male, female, and gall. This species induces galls on fruits of Solanum sp. (Solanaceae) in Amazonia, Brazil.