Results 51 to 60 of about 495 (215)

Morphological, Anatomical and Palynological Studies on Endemic Matthiola anchoniifolia Hub. -Mor. (Brassicaceae)

open access: yesNotulae Scientia Biologicae, 2013
In this paper, anatomical, palynological and seed micromorphological properties of an endemic plant Matthiola anchoniifolia Hub.-Mor. are recorded for the first time.
Mehmet TEKIN   +2 more
doaj   +3 more sources

Anatomical and histochemical bark changes due to growth of Tillandsia recurvata (ball moss)

open access: yesBotan‪ical Sciences, 2016
Excessive growth of Tillandsia recurvata (ball moss) may impact host architecture and survival. For a better understanding of this effect, an anatomical and histochemical bark assessment was carried out in four host species.
Silvia Aguilar Rodríguez   +3 more
doaj   +1 more source

Phellem versus xylem: genome-wide transcriptomic analysis reveals novel regulators of cork formation in cork oak

open access: yesTree Physiology, 2019
Abstract Cork cambium (or phellogen) is a secondary meristem responsible for the formation of phelloderm and phellem/cork, which together compose the periderm. In Quercus suber L., the phellogen is active throughout the entire life of the tree, producing a continuous and renewable outer bark of cork.
Susana T, Lopes   +6 more
openaire   +2 more sources

Orientation‐Engineered PtTe2 Schottky FETs: Quantum Transport Insights for Dopant‐Free Advanced Technology Nodes

open access: yesAdvanced Electronic Materials, EarlyView.
Monolayer PtTe2 enables dopant‐free Schottky FETs through its thickness‐dependent electronic transition. Quantum transport simulations show that crystallographic orientation strongly influences device performance, with Γ–M transport delivering higher drive current, lower leakage, and improved switching behavior.
Lida Ansari, Paul K. Hurley, Farzan Gity
wiley   +1 more source

Not All Agreements Are Equal: Heterogeneous Effects of RTAs on Latin American Agri‐Food Exports, 1990–2019

open access: yesAgribusiness, EarlyView.
ABSTRACT Since the final decade of the 20th century, Latin American countries have increasingly regarded the signing of regional trade agreements (RTAs) as a promising strategy for expanding their exports. Within this context, the main objective of this study is to assess the impact of RTAs on agri‐food exports in Latin America over the period 1990 ...
María‐Isabel Ayuda   +2 more
wiley   +1 more source

Morphoanatomical and physicochemical standardization of Casuarina equisetifolia L. stem bark

open access: yesBeni-Suef University Journal of Basic and Applied Sciences, 2014
Objective: The present work was carried out to perform the morphoanatomical and physicochemical evaluation of Casuarina equisetifolia L. stem bark. Method: The pharmacognostic studies were carried out in terms of organoleptic, macroscopic, microscopic ...
Dinesh Kumar, Ajay Kumar, Om Prakash
doaj   +1 more source

UBE3A Dosage Imbalance as a Molecular Framework Linking Angelman Syndrome and Dup15q‐Associated Autism Phenotypes

open access: yesAmerican Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT UBE3A is a dosage‐sensitive HECT E3 ubiquitin ligase whose neuronal expression is shaped by genomic imprinting at the 15q11.2‐q13 locus. Opposite directions of UBE3A dosage imbalance contribute to distinct neurodevelopmental phenotypes: loss of maternal UBE3A underlies Angelman syndrome, whereas maternally derived 15q11.2‐q13 copy‐number gains,
Ruslan Kurmashev
wiley   +1 more source

Molecular cloning and functional identification of sterol C24-methyltransferase gene from Tripterygium wilfordii

open access: yesActa Pharmaceutica Sinica B, 2017
Sterol C24-methyltransferase (SMT) plays multiple important roles in plant growth and development. SMT1, which belongs to the family of transferases and transforms cycloartenol into 24-methylene cycloartenol, is involved in the biosynthesis of 24-methyl ...
Hongyu Guan   +11 more
doaj   +1 more source

Survival strategies of plants during secondary growth: barrier properties of phellems and lenticels towards water, oxygen, and carbon dioxide [PDF]

open access: yesJournal of Experimental Botany, 2006
Ever since plants began to conquer the terrestrial environment, a simple but effective evolutionary strategy has been employed to cope with the combined necessities of preventing an excessive loss of water via the aerial surface while also supporting the vital exchange of CO(2) and O(2) for photosynthesis and respiration.
openaire   +2 more sources

The Insistence of Blackness and the Persistence of Antiblackness in Ireland

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT This paper positions Ireland as a critical site for examining the insistence of blackness and an antiblackness created and sustained through Irish ethnonationalist imaginaries and exclusionary processes. Drawing on connected sociologies and Irish Black Studies, this enquiry argues that antiblackness in Ireland operates as a generational force,
Philomena Mullen
wiley   +1 more source

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