Results 21 to 30 of about 869,560 (268)

Characterization of the Populus Rab family genes and the function of PtRabE1b in salt tolerance

open access: yesBMC Plant Biology, 2018
Background Rab proteins form the largest family of the Ras superfamily of small GTP-binding proteins and regulate intracellular trafficking pathways. However, the function of the Rab proteins in woody species is still an open question.
Jin Zhang   +8 more
doaj   +1 more source

The complete chloroplast genome of Salix lindleyana (salicaceae), a plateau plant species

open access: yesMitochondrial DNA. Part B. Resources, 2023
Salix lindleyana Wallich ex Andersson is a species of genus Salix which mainly grows on mountains above 3000 m at sea level in Qinghai–Tibetan Plateau (including the Himalayas and Hengduan Mountains).
Nan Xu   +3 more
doaj   +1 more source

Phenolic extracts from colored-walnut pellicles: antioxidant efficiency in walnut oil preservation

open access: yesInternational Journal of Food Properties, 2022
The phenolic extracts of walnut cultivars with a red pellicle (HWE), a purple pellicle (ZWE) and a yellow pellicle (WWE) were compared. The total contents of phenolics, flavonoids and condensed tannins, as well as in vitro antioxidant activities (ABTS ...
Feng Jin   +5 more
doaj   +1 more source

Selection and validation of reference genes for quantitative expression analysis of miRNAs and mRNAs in Poplar

open access: yesPlant Methods, 2019
Background Quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) is a rapid and sensitive approach to identify miRNA and protein-coding gene expression in plants.
Fang Tang   +5 more
doaj   +1 more source

Errors in estimated gestational ages reduce the likelihood of health facility deliveries: results from an observational cohort study in Zanzibar

open access: yesBMC Health Services Research, 2020
Background Most maternal health programs in low- and middle- income countries estimate gestational age to provide appropriate antenatal care at the correct times throughout the pregnancy. Although various gestational dating methods have been validated in
Isabel Fulcher   +8 more
doaj   +1 more source

Tree contractions and evolutionary trees [PDF]

open access: yesSIAM Journal on Computing, 1997
An evolutionary tree is a rooted tree where each internal vertex has at least two children and where the leaves are labeled with distinct symbols representing species. Evolutionary trees are useful for modeling the evolutionary history of species. An agreement subtree of two evolutionary trees is an evolutionary tree which is also a topological subtree
openaire   +4 more sources

Overexpressing the Sedum alfredii Cu/Zn Superoxide Dismutase Increased Resistance to Oxidative Stress in Transgenic Arabidopsis

open access: yesFrontiers in Plant Science, 2017
Superoxide dismutase (SOD) is a very important reactive oxygen species (ROS)-scavenging enzyme. In this study, the functions of a Cu/Zn SOD gene (SaCu/Zn SOD), from Sedum alfredii, a cadmium (Cd)/zinc/lead co-hyperaccumulator of the Crassulaceae, was ...
Zhen Li   +17 more
doaj   +1 more source

Representations of the Tree of Life in Ancestors’ Symbolics [PDF]

open access: yesAnastasis: Research in Medieval Culture and Art, 2022
From time immemorial, our predecessors have projected an entire series of symbols on trees, so that through them, man can become part of what is sacred, thus being able to absorb a speck of the sacred.
Loredana Gașpar
doaj   +1 more source

Categorizing Ideas about Trees: A Tree of Trees

open access: yesPLoS ONE, 2013
The aim of this study is to explore whether matrices and MP trees used to produce systematic categories of organisms could be useful to produce categories of ideas in history of science. We study the history of the use of trees in systematics to represent the diversity of life from 1766 to 1991.
Marie Fisler, Guillaume Lecointre
openaire   +4 more sources

Top Photoselective Netting in Combination with Reduced Fertigation Results in Multi-Annual Yield Increase in Valencia Oranges (Citrus sinensis)

open access: yesAgronomy, 2021
Fruit tree production is challenged by climate change, which is characterized by heat waves, warmer winters, increased storms, and recurrent droughts.
Ilya Dovjik   +12 more
doaj   +1 more source

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