Results 41 to 50 of about 677,464 (290)

Morphoanatomy of nectaries of Chamaecrista (L.) Moench sections Chamaecrista , Caliciopsis and Xerocalyx (Leguminosae: Caesalpinioideae)

open access: yesActa Botânica Brasílica
Nectaries are specialized structures that secrete nectar. Several species of Chamaecrista possess nectaries on the petiole, which have been shown to vary widely in morphology and the chemical nature of their secretion.
Marinalva dos Santos Silva   +3 more
doaj   +1 more source

The Role of Secreting Structures Position on the Leaf Volatile Organic Compounds of Hypericum androsaemum

open access: yesNatural Product Communications, 2010
Hypericum androsaemum L. presents typical translucent, essential oil producing glands, which are distributed on the leaf along both margins (margin glands) and on the lamina (lamina glands).
Claudia Giuliani   +3 more
doaj   +1 more source

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

open access: yesFEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux   +7 more
wiley   +1 more source

CAPSULE, LEAF AND CYATHIAL GLAND MORPHOLOGY OF TURKISH PERENNIAL TAXA OF Euphorbia L. SECTION Pithyusa (Raf.) Lázaro

open access: yesTrakya University Journal of Natural Sciences, 2018
Macro and micromorphology of cyathial glands, capsules and cauline leaf surfaces of 13 perennial species of Euphorbia L. subg. Esula Pers. sect. Pithyusa (Raf.) Lázaro in Turkey were studied.
İlker Genç   +2 more
doaj   +1 more source

Morphology, ontogeny and structure of the stipular nectaries in Caamembeca spectabilis (Polygalaceae) [PDF]

open access: yesActa Amazonica, 2016
Nodal glands are found in one third of the Polygalaceae genera and have valuable taxonomic, ecological and evolutionary significance. In Brazil, they occur in five of the eleven genera already registered.
Joana Patrícia Pantoja Serrão FILGUEIRA   +2 more
doaj   +2 more sources

Quantitative Anatomical Characteristics of the Leaf Blades of the Several Species of Crataegus L.

open access: yesРазработка и регистрация лекарственных средств, 2021
Introduction. The Crataegus L. (Hawthorn) is a common herb in numerous Pharmacopoeias. The State Pharmacopoeia of the Russian Federation provides hawthorn fruits and flowers for medical utilization.
V. A. Sagaradze   +4 more
doaj   +1 more source

Smaller is better: nanobodies meet NMR

open access: yesFEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

The Postpharyngeal Gland: Specialized Organ for Lipid Nutrition in Leaf-Cutting Ants

open access: yesPLOS ONE, 2016
There are several hypotheses about the possible functions of the postpharyngeal gland (PPG) in ants. The proposed functions include roles as cephalic or gastric caeca and diverticulum of the digestive tract, mixing of hydrocarbons, nestmate recognition, feeding larvae, and the accumulation of lipids inside this gland, whose origin is contradictory. The
Decio, Pamela   +4 more
openaire   +6 more sources

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