Results 111 to 120 of about 2,785,401 (324)

Phylogenic points of view on the sexuality of cormophytes

open access: yesActa Societatis Botanicorum Poloniae, 2014
1) Unisexuality is spreading from gametes, through gametophytes, to sporangia and sporaphytes, individual hermaphradite plants finally becoming the ground for sex separation with cross fertilization processes; 2) male and female gametogeneses are ...
Michael Favre-Duchartre
doaj   +1 more source

Molecular cloning and transcriptional activity of a new Petunia calreticulin gene involved in pistil transmitting tract maturation, progamic phase, and double fertilization [PDF]

open access: yes, 2013
Calreticulin (CRT) is a highly conserved and ubiquitously expressed Ca2+-binding protein in multicellular eukaryotes. As an endoplasmic reticulum-resident protein, CRT plays a key role in many cellular processes including Ca2+ storage and release ...
A Christensen   +59 more
core   +2 more sources

Diversity of Pharmaceuticals Enhances Antibiotic Resistance in the Invertebrate Gut via Biofilm‐Mediated Mechanisms

open access: yesAdvanced Science, EarlyView.
Pharmaceutical diversity acts as an independent driver of antibiotic resistance in soil invertebrates. While bulk soil remains unaffected, the collembolan gut microbiome exhibits significant resistance gene enrichment under complex chemical exposure and diurnal warming.
Yi‐Fei Wang   +11 more
wiley   +1 more source

Вегетативни и репродуктивни прояви на домати в зависимост от сорта и условията на отглеждане

open access: yesПочвознание, агрохимия и екология, 2013
A Greenhouse experiment under controlled conditions with 10 varieties/lines tomatoes was carried out. Two ways of submitting the potassium level (single and double implementations) at background nitrogen and phosphorus fertilization were tested.
ВЕСЕЛИНА ВАСИЛЕВА   +3 more
doaj  

Nitrogen turnover and leaching in cropping systems with ryegrass catch crops [PDF]

open access: yes, 2000
This thesis deals with perennial ryegrass (Lolium perenne L.) catch crops and their short- and long-term effects on nitrogen leaching and nitrogen turnover in soils. Results are presented from three field experiments on a sandy soil in south-west Sweden,
Aronsson, Helena
core  

Tetrastigma Hemsleyanum Polysaccharide Suppresses Triple‐Negative Breast Cancer by Disrupting the Hippo‐YAP/TEAD4‐PDIA4 Axis and Endoplasmic Reticulum Stress Adaptation

open access: yesAdvanced Science, EarlyView.
ABSTRACT Triple‐negative breast cancer (TNBC) exhibits addiction to chronic endoplasmic reticulum (ER) stress, which sustains an aggressive metastatic phenotype through activation of the unfolded protein response (UPR). Here, we identify a previously unrecognized “ER‐stress addiction” axis in which the Hippo pathway effector TEAD4 directly ...
Yini Shang   +9 more
wiley   +1 more source

POSSIBLILTIES FOR A SINGLE EMBRYO TRANSFER IN AN IN VITRO FERTILIZATION PROGRAMME

open access: yesZdravniški Vestnik, 2003
Background. Since in in vitro fertilization two embryos – blastocysts are routinely transferred, the twin pregnancy rates are higher than in the general population.
Irma Virant Klun   +12 more
doaj  

Optimizing fertilizer application and straw return to fields to minimize nitrogen and phosphorus runoff losses in double-rice cropping systems

open access: yesAgricultural Water Management
Runoff losses of nitrogen (N) and phosphorus (P) from paddy fields pose considerable eutrophication risks to surrounding water and raise non-point source pollution.
Ying Zhang   +9 more
doaj   +1 more source

Effects of Nitrogen Fertilization on Monoterpenes of Jack Pine Seedlings and Weight Gain of Jack Pine Budworm (Lepidoptera: Tortricidae) [PDF]

open access: yes, 2017
Nine-month old jack pine (Pinus banksiana) seedlings were grown in a greenhouse under four nitrogen fertilization regimes. Levels of total nitrogen and five monoterpenes in new foliage were measured. Fertilization resulted in four significantly different
Kulman, Herbert M   +2 more
core   +2 more sources

Mitochondria and Neuromast Tagging With Fluorescent Gallium‐Triapine Analogues: In Cellulo MP FLIM and Zebrafish Live Imaging

open access: yesAdvanced Science, EarlyView.
Fluorescent BODIPY‐conjugated thiosemicarbazone ligands and their Ga(III), In(III), and Fe(III) complexes, inspired by Triapine, are developed as theranostic agents. Multiphoton FLIM and confocal microscopy in cancer cells and zebrafish reveal real‐time uptake, mitochondrial localisation, and whilst spectroscopic assays indicated preserved complex ...
Megan J. Green   +15 more
wiley   +1 more source

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