Results 31 to 40 of about 229,059 (307)

Modularization for the Cell Ontology [PDF]

open access: yes, 2011
One of the premises of the OBO Foundry is that development of an orthogonal set of ontologies will increase domain expert contributions and logical interoperability, and decrease maintenance workload. For these reasons, the Cell Ontology (CL) is being re-
Alexander D. Diehl   +7 more
core   +2 more sources

Danos visuais e anatômicos causados pelo glyphosate em folhas de Eucalyptus grandis Visible and anatomic damages caused by glyphosate in Eucalyptus grandis leaves

open access: yesPlanta Daninha, 2008
A sintomatologia é um dos principais critérios adotados para avaliar os danos causados por fatores bióticos e abióticos em plantas. Contudo, aspectos microscópicos são necessários na compreensão dos mecanismos de intoxicação e no diagnóstico precoce da ...
L.D. Tuffi Santos   +6 more
doaj   +1 more source

Conifer-angiosperm interactions: Physiological ecology and life history. [PDF]

open access: yes, 2011
Worldwide, conifers are most successful on sites subject to chronic stresses that limit productivity (low temperatures, nutrient poverty, poor drainage).
Lusk, Christopher H.
core   +2 more sources

How to construct and use a simple device to prevent the formation of precipitates when using Sudan Black B for histology

open access: yesActa Botânica Brasílica, 2015
The present work aims to demonstrate the stages of fabrication and use of a simple device to avoid the formation or fixation of precipitates from Sudan Black B solution on tissues.
João Marcelo Santos de Oliveira
doaj   +1 more source

Chemical Structure and Localization of Levan, the Predominant Fructan Type in Underground Systems of Gomphrena marginata (Amaranthaceae)

open access: yesFrontiers in Plant Science, 2018
Gomphrena marginata Seub. (Amaranthaceae) is an endemic species from Brazilian campos rupestres with a fructan accumulating underground reserve system.
Emanuela O. Joaquim   +8 more
doaj   +1 more source

The taxonomic value of leaf anatomy for species Byrsonima: a difficult genus of Malpighiaceae Juss. [PDF]

open access: yesActa Botânica Brasílica, 2020
We studied the leaf anatomy of 15 species of Byrsonima and a single species of Diacidia as an outgroup to test the relevance of leaf anatomical characters to the complicated taxonomy of this genus. We present complete anatomical descriptions for petioles
João Victor da Costa Santos   +4 more
doaj   +1 more source

Plant Anatomy

open access: yesAgronomy Journal, 1953
Weldon O. Shepherd, Katherine Esau
  +7 more sources

Comparative leaf anatomy of the nothospecies × Butyagrus nabonnandii (Arecaceae) with its parental species [PDF]

open access: yesRodriguésia
Anatomical studies of the leaf blade have been used to complement the morphological data and aid circumscription and identification in Arecaceae. The hybrid palm ×Butyagrus nabonnandii results from the natural cross between Butia odorata and Syagrus ...
Patrícia de Oliveira-Neves   +3 more
doaj   +1 more source

COMPARATIVE STEM ANATOMY OF EIGHT SELECTED WILD PLANT SPECIES FROM PAPILIONACEAE FAMILY IN WESTERN DESERT DISTRICT (DWD) [PDF]

open access: yesمجلة الأنبار للعلوم الزراعية
Eight selected wild plant species from the Papilionaceae family were collected and identified in the Western Desert District of Iraq. Which belongs to 5 genera, namely, the genus Astragalus L., represented by the species A.
M. O. Mousa   +6 more
doaj   +1 more source

Foliar plasticity of Erythroxylum tortuosum (Erythroxylaceae) in the Cerrado: a representative neotropical genus with medicinal importance [PDF]

open access: yesRodriguésia
Erythroxylum is common in the Brazilian Cerrado. Species from this genus have ecological, pharmacological and popular medical importance. Based on this information, the aims of this study was to perform a descriptive and quantitative morphoanatomical ...
Mariana Virginia de Freitas Dias   +3 more
doaj   +1 more source

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