Cristiana Koschnitzke

ORCID: 0000-0002-2202-8501
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About
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Research Areas
  • Plant and animal studies
  • Plant Diversity and Evolution
  • Fern and Epiphyte Biology
  • Plant and Fungal Species Descriptions
  • Botanical Research and Applications
  • Plant Parasitism and Resistance
  • Insect-Plant Interactions and Control
  • Hymenoptera taxonomy and phylogeny
  • Essential Oils and Antimicrobial Activity
  • Botanical Research and Chemistry
  • Bee Products Chemical Analysis
  • Growth and nutrition in plants
  • Ecology and Vegetation Dynamics Studies
  • Botany, Ecology, and Taxonomy Studies
  • Genetics, Bioinformatics, and Biomedical Research
  • Banana Cultivation and Research
  • Flowering Plant Growth and Cultivation
  • Plant Pathogens and Fungal Diseases
  • Seed Germination and Physiology
  • Agricultural pest management studies
  • Phytochemistry Medicinal Plant Applications
  • Phytochemistry and biological activities of Ficus species
  • Soybean genetics and cultivation

Departamento Nacional de Produção Mineral
2003-2023

Universidade Federal do Rio de Janeiro
2006-2023

Apis Flora (Brazil)
2018

Universidade Estadual de Campinas (UNICAMP)
1997-1999

Large clades of angiosperms are often characterized by diverse interactions with pollinators, but how these pollination systems structured phylogenetically and biogeographically is still uncertain for most families. Apocynaceae a clade >5300 species worldwide distribution. A database representing >10 % in the family was used to explore diversity pollinators evolutionary shifts across major regions. The compiled from published unpublished reports. Plants were categorized into broad then...

10.1093/aob/mcy127 article EN cc-by Annals of Botany 2018-07-14

(Biologia floral de cinco espécies Passiflora L. (Passifloraceae) em mata semidecídua). O estudo da biologia foi feito uma planalto Campinas, São Paulo. alata, P. amethystina e miersii apresentam flores cor púrpura a violeta corona variegada. As são diurnas, perfumadas, autoincompatíveis polinizadas por abelhas grande porte. diferem alata apresentarem filamentos livres no opérculo, que é horizontal denticulado. Estas diferenças opérculo promovem comportamentos característicos das durante as...

10.1590/s0100-84041997000200002 article PT Revista Brasileira de Botânica 1997-12-01

With the recent taxonomic review of Chaetostoma DC., it was found that six species did not present set diagnostic features established to delimit genus. is characterized by sessile, keeled subkeeled, overlapping, acute leaves and a trichome crown on external apex length hypanthium. Three are transferred Microlicia D. Don: M. acuminata Naudin (C. acuminatum (Naudin) Cogniaux), castrata castratum oxyanthera oxyantherum Triana). Two new names also proposed: baumgratziana A. B. Martins &...

10.3417/1055-3177(2007)17[472:naimm]2.0.co;2 article EN Novon A Journal for Botanical Nomenclature 2007-12-01

Biotic invasion in mutualistic communities is of particular interest due to the possible establishment new relationships with native species. Ficus species are widely cultivated as ornamental plants, and they host specific chalcid wasps that strictly associated fig inflorescences. Some introduced capable establishing local wasps, wasp may also be concomitantly their plants. Ficusbenjamina L. across world, but not reported outside range. We describe for first time a non-pollinating...

10.3897/jhr.67.29733 article EN cc-by Journal of Hymenoptera Research 2018-12-31

Chaetostoma hexapetalum, a new species from Chapada dos Veadeiros, Goias state, in the central-western region of Brazil, is described and illustrated. This can be easily differentiated its congeners by combination following characters: presence sixmerous flowers, four-locular ovary, fruits with slight apical prolongation, two glandular trichomes between opposite leaves. Images seeds made scanning electron microscopy, photos field, distribution map are presented. A key to occurring de...

10.1600/036364418x697805 article EN Systematic Botany 2018-12-28

is a laticiferous climbing vine, with showy yellow flowers an infundibuliform corolla and cylindrical tube

10.1590/s0085-56262011005000023 article EN cc-by-nc-nd Revista Brasileira de Entomologia 2011-09-01

ABSTRACT This is the first record of Bradysia sp. as a pollinator Ditassa banksii Schult.. fly usually becomes trapped in flower and die, but it carries out pollination too. It common to find fragments insects bodies or dead individuals flowers Asclepiadoideae. However, this report inserting pollinia.

10.1590/2236-8906-61/2017 article EN cc-by Hoehnea 2018-01-01

Temnadenia odorifera is an endemic species from the Brazilian Atlantic Forest.This study was developed in order to identify volatile compounds emitted by living flowers and nectar, evaluate temporal pattern of scent emission, sugars composition its nectar.Analyses flower dynamic headspace vivo, nectar sugar studies on floral biology were performed.Twenty-three identified scent.The total amount odor varied significantly throughout anthesis, ranging 10232.7 ng g -1 (9 12 h) 620.2 (15 18...

10.21577/0103-5053.20180188 article EN cc-by Journal of the Brazilian Chemical Society 2018-01-01

ABSTRACT (Reproductive assurance in three Neotropical species of Podostemaceae: strategies self-pollination and the first report apomixis). The aspects reproductive Lophogyne lacunosa (Gardner) C.P.Bove & C.T.Philbrick, Podostemum weddellianum (Tul.) C.T. Philbrick Novelo, Tristicha trifaria (Bory ex Willd.) Spreng. were investigated and, mechanisms correlated to flower morphology floral biology. mating system L. was also described, as well apomixis Podostemaceae. used by autonomous...

10.1590/2236-8906-21/2019 article EN cc-by Hoehnea 2020-01-01

Palicourea guianensis e P. marcgravii possuem inflorescências flores de colorido vivo. Suas são tubulares polinizadas por beija-flores, mas elas visitadas também borboletas. Estas apresentam odor suave com o método do vermelho neutro tubo da corola ficou corado. É possível que seja um caso síndrome polinização mista ou a emissão seria uma característica ancestral dentro linhagem filogenética.

10.1590/s2236-89062009000300010 article PT cc-by Hoehnea 2009-09-01

Four new combinations in Chaetosto¬ ma (C.albiflorum, C. cupressinum, selagineum, stenocladon,) are proposed, and a species, Chaetostoma flavum , endemic to the Chapada dos Veadeiros, Goids, Brazil, is described.Tbe species can be distinguished by its 4-5-locular ovary antisepalous stamens with prolonged ap¬ pendages.Chaetostoma DC. genus Brazil comprising 1 that occur campo rupestre, de altitude, cerrado vegeta¬ tion states of Distrito Federal, Minas Gerais, less considerable representation...

10.2307/3391799 article EN Novon A Journal for Botanical Nomenclature 1999-01-01

Abstract The Botanical Garden of the Museu Nacional/Universidade Federal do Rio de Janeiro (Rio Janeiro, RJ, Brazil) was investigated monthly from October, 2017 to December, 2019 in a total 27 collections, each lasting four hours, following methodology random walking. Vegetative and reproductive organs herbs, bushes trees (up 2 m high) were examined by two people. Voucher material deposited Entomological Collection Nacional (MNRJ)/Universidade Janeiro. We found 13 insect gall morphotypes...

10.1590/1519-6984.279575 article EN cc-by Brazilian Journal of Biology 2023-01-01
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