Results 101 to 110 of about 35,116 (289)

Anatomia comparada dos órgãos vegetativos de espécies de Bulbophyllum seção Didactyle (Lindl.) Cogn. e Bulbophyllum seção Xiphizusa Rchb.f. (Orchidaceae)

Hoehnea
Bulbophyllum sect. Didactyle e B.sect. Xiphizusa são grupos monofiléticos irmãos, inseridos no clado neotropical do gênero. As espécies ocorrem como epífitas ou rupícolas em áreas montanhosas com predomínio dos campos rupestres.
Ligia Debone Piazza, Eric de Camargo Smidt, Cleusa Bona   +2 more
doaj   +1 more source

Phenological description for the initial development stage of five Brazilian native forest species according to BBCH scale

Annals of Applied Biology, EarlyView.
Morphology of the two main growth stages—germination and initial development of the forest species Ceiba speciosa (co, cotyledon; eo, eophyll; hp, hypocotyl; me, metaphyll; pk, prickles; pr, primary root; se, seed; sr, secondary root). Abstract A specific phenological scale designated for each forest species facilitates the standardization of different
Mábele de Cássia Ferreira, Fabrina Bolzan Martins, Haroldo Felipe da Costa   +2 more
wiley   +1 more source

TROPICAL PALMS AND FACTORS INFLUENCING THEIR DISTRIBUTIONS AND DIVERSITY, WITH A FOCUS ON Pinanga DIVERSITY IN SOUTHEAST ASIA

Biotropia: The Southeast Asian Journal of Tropical Biology
ARTICLE HIGLIGHTS - The palm genus Pinanga is the most diverse in Southeast Asia. - Limited ecological studies on Pinanga show the influence of environmental factors. - High Pinanga endemism in Borneo requires conservation action.
Mohamad Farid Abdullah, Salwana Md Jaafar, Norhayati Ahmad, Rahayu Sukmaria Sukri   +3 more
doaj   +1 more source

Functional characterization of two plant type I MADS-box genes in Arabidopsis thaliana : AGL40 and AGL62 : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Plant Biology at Massey University, Palmerston North, New Zealand [PDF]

, 2008
MADS-box transcription factors (TF) are a family of evolutionary conserved genes found across various eukaryotic species. Characterized by the conserved DNA binding MADS-box domain.
Kaji, Ryohei
core  

Insights from controlled, comparative experiments highlight the limitations of using BSMV and FoMV for virus‐enabled reverse genetics in rice

Annals of Applied Biology, EarlyView.
Virus‐enabled reverse genetics (VERG) enables transient gene expression modulation in plants but its efficacy varies across species. We evaluated the efficacy of barley stripe mosaic virus (BSMV) and foxtail mosaic virus (FoMV) for virus‐induced gene silencing (VIGS) and virus‐mediated overexpression (VOX) in rice (Oryza sativa).
Guilherme M. Turra, Aldo Merotto Jr., Dana R. MacGregor   +2 more
wiley   +1 more source

Vitamin D levels and biomarkers of male fecundity: A study from the Danish National Birth Cohort

Andrology, EarlyView.
Abstract Background Vitamin D is metabolised throughout the male reproductive system, suggesting a direct regulatory role of vitamin D in male reproduction. Objectives To investigate the association between plasma vitamin D levels at sperm ejaculation and during spermatogenesis and biomarkers of male fecundity in young men.
Anne Gaml‐Sørensen, Nis Brix, Sandra Søgaard Tøttenborg, Christian Lindh, Karin Sørig Hougaard, Siri Eldevik Håberg, Gunnar Toft, Jens Peter Ellekilde Bonde, Cecilia Høst Ramlau‐Hansen   +8 more
wiley   +1 more source

Revisiting Mayacaceae Kunth towards to future perspectives in the family

Rodriguésia
Mayacaceae Kunth is an aquatic plant family that currently comprises a single genus, and four to six accepted species. Most of them are widely distributed in the Neotropics, with the exception of Mayaca baumii Gürke, which is endemic to Africa.
Maria Luiza Silveira de Carvalho, Rodrigo F. P. Machado   +1 more
doaj   +1 more source

The Oxytocin Receptor in Spermatozoa May Originate From Both Spermatogenesis and Epididymal Maturation, and Regulates Capacitation

Andrology, EarlyView.
Abstract Background The oxytocin receptor (OR) is a G‐protein‐coupled receptor recently identified in human spermatozoa, whose origin and role in sperm physiology remain unknown. Objectives In this study, using the pig as a model, we examine the presence of the OR in ejaculated spermatozoa through immunofluorescence and immunoblotting, and investigate ...
Jesús Martínez‐Hernández, Ferran Garriga, Adeel Ahmad, Lorena Padilla, Carolina Maside, Sergi Bonet, Isabel Barranco, Jordi Roca, Luis Miguel Pastor, Marc Yeste   +9 more
wiley   +1 more source

Structural studies of a fucogalactoxyloglucan from pinus radiata primary cell walls : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Biochemistry at Massey University [PDF]

, 1980
1. The changes in carbohydrate composition of elongating Pinus radiata primary cell walls were investigated. In the hemicellulose B extracts, a large increase in the percentage of non-starch, non-cellulosic, glucose was found to occur on cessation of ...
Little, John William Lester
core  

Untangling nutrient co‐regulation of ombrotrophic peatland development

Boreas, EarlyView.
Multi‐method (FTIR, FT‐NIR and TGA) approaches characterizing the organic peat constituents at Holcroft Moss reveal a record of switches that reflect broadly hydroclimate variability governing the decomposition patterns. There are periods, however, where hydroclimate does not fully explain the variability observed and instead changes appear linked to ...
Richard C. Chiverrell, Daniel N. Schillereff, Fiona E. Russell, Julie Valentine, Jason R. Kirby, David M. Wilkinson, John F. Boyle   +6 more
wiley   +1 more source