Results 91 to 100 of about 229,797 (353)

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

open access: yesFEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Anatomia foliar e caulinar de Chamaecrista trichopoda (Caesalpinioideae) e histoquímica do nectário extrafloral Foliar and stem anatomy of Chamaecrista trichopoda (Caesalpinioideae) and extrafloral nectary histochemistry

open access: yesPlanta Daninha, 2006
Nectários são comuns dentre as Leguminosae, estando freqüentemente localizados nas folhas. Objetivou-se caracterizar anatomicamente o caule, a folha e o nectário extrafloral de Chamaecrista trichopoda, bem como investigar a natureza química do secretado ...
D.M.T. Francino   +5 more
doaj   +1 more source

Impacts of Land Abandonment on Vegetation: Successional Pathways in European Habitats [PDF]

open access: yes, 2011
Changes in traditional agricultural systems in Europe in recent decades have led to widespread abandonment and colonization of various habitats by shrubs and trees.
Bernhardt-Römermann, M.   +11 more
core   +4 more sources

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

open access: yesFEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang   +8 more
wiley   +1 more source

Anatomy of epithemal hydathodes in four monocotyledon plants of economic and academic relevance [PDF]

open access: gold, 2020
Alain Jauneau   +3 more
openalex   +1 more source

Secretory Tissues and Volatile Components of Disc Florets in Several Wild Helianthus L. Species

open access: yesPlants
Although flower pollinator interactions are known to be mediated by floral traits, not enough attention has been paid to the research of secretory tissues and volatile components of sunflower disc florets as potentially important parameters in breeding ...
Jelena Jocković   +10 more
doaj   +1 more source

Processus de croissance et d'organogenese chez le pommier cv Golden Delicious [PDF]

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2002
Growth and organogenesis processes in apple tree cv Golden Delicious. This work aims to focus on the organogenetic activity, growth and histological processes in the shoot apical meristem of apple cv Golden Delicious.
Mehri H., Crabbe J.
doaj  

Estrutura foliar de curauá em diferentes intensidades de radiação fotossinteticamente ativa Leaf structure of curaua in different intensities of photosynthetically active radiation

open access: yesPesquisa Agropecuária Brasileira, 2008
O objetivo deste trabalho foi caracterizar a anatomia foliar de Ananas comosus var. erectifolius e comparar as características anatômicas de suas fibras foliares, quando submetidas a dois índices de radiação fotossinteticamente ativa (54 e 100%).
Elaine Cristina Pacheco de Oliveira   +3 more
doaj   +1 more source

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