1,264,134 results match your criteria Plant Poisoning Alkaloids - Quinolizidine & Isoquinoline

How did the characteristics of the growing season change during the past 100 years at a steep river basin in Japan?

PLoS One 2021 30;16(7):e0255078. Epub 2021 Jul 30.

Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan.

The effects of climate change on plant phenological events such as flowering, leaf flush, and leaf fall may be greater in steep river basins than at the horizontal scale of countries and continents. This possibility is due to the effect of temperature on plant phenology and the difference between vertical and horizontal gradients in temperature sensitivities. We calculated the dates of the start (SGS) and end of the growing season (EGS) in a steep river basin located in a mountainous region of central Japan over a century timescale by using a degree-day phenological model based on long-term, continuous, in situ observations. Read More

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Effect of root surface charge on the absorption and accumulation of Cu(II) by different japonica and indica rice varieties under acidic conditions.

Ecotoxicol Environ Saf 2021 Jul 27;223:112547. Epub 2021 Jul 27.

State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, Nanjing, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address:

Excessive amounts of copper (Cu) in soils causes toxic effects on plants. In this study, 58 rice cultivars were classified into tolerant, moderately tolerant, and susceptible types for Cu(II) toxicity based on 50% germination (LC). Nine japonica rice varieties (three each from the tolerant, moderately tolerant, and susceptible groups) and six indica rice varieties (three from the moderately tolerant and susceptible groups) were selected for the hydroponics experiments. Read More

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Elimination of SARS-CoV-2 along wastewater and sludge treatment processes.

Water Res 2021 Jul 15;202:117435. Epub 2021 Jul 15.

Suez Groupe, Paris, France.

The Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is shed in the feces of infected people. As a consequence, genomic RNA of the virus can be detected in wastewater. Although the presence of viral RNA does not inform on the infectivity of the virus, this presence of genetic material raised the question of the effectiveness of treatment processes in reducing the virus in wastewater and sludge. Read More

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A hybrid DNA sequencing approach is needed to properly link genotype to phenotype in multi-drug resistant bacteria.

Environ Pollut 2021 Jul 26;289:117856. Epub 2021 Jul 26.

Faculty of Biotechnology, School of Life Sciences, SARI, Jeju National University, Jeju, 63243, Republic of Korea. Electronic address:

Antibiotic resistance genes (ARGs) are now viewed as emerging contaminants posing a potential worldwide human health risk. The degree to which ARGs are transferred to other bacteria via mobile genetic elements (MGEs), including insertion sequences (ISs), plasmids, and phages, has a strong association with their likelihood to function as resistance transfer determinants. Consequently, understanding the structure and function of MGEs is paramount to assessing future health risks associated with ARGs in an environment subjected to strong antibiotic pressure. Read More

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Morphophysiological alterations in transgenic rice lines expressing PPDK and ME genes from the C4 model Setaria italica.

J Plant Physiol 2021 Jul 21;264:153482. Epub 2021 Jul 21.

ICAR- National Rice Research Institute, Cuttack, 753006, Odisha, India. Electronic address:

C4 plants are superior to C3 plants in terms of productivity and limited photorespiration. PPDK (pyruvate orthophosphate dikinase) and NADP-ME (NADP-dependent malic enzyme) are two important photosynthetic C4-specific enzymes present in the mesophyll cells of C4 plants. To evaluate the effect of C4 enzymes in rice, we developed transgenic rice lines by separately introducing Setaria italica PPDK [SiPPDK] and S. Read More

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Maximizing the simultaneous production of lipids and carotenoids by Rhodosporidium toruloides from wheat straw hydrolysate and perspectives for large-scale implementation.

Bioresour Technol 2021 Jul 17;340:125598. Epub 2021 Jul 17.

Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 223, 2800 Kongens Lyngby, Denmark. Electronic address:

This study aimed to select fermentation conditions able to simultaneously maximize the production of lipids and carotenoids by oleaginous yeast cultivated in wheat straw hydrolysate. An evolved strain of Rhodosporidium toruloides with improved tolerance to toxic compounds present in hydrolysate medium was used. Experiments were performed in order to investigate the effect of the temperature and inoculum load on the production of lipids and carotenoids by R. Read More

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Quality changes in chicken livers during cooking.

Poult Sci 2021 Jun 9;100(9):101316. Epub 2021 Jun 9.

Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, WA, 99164-7040, USA.

Raw chicken livers are often contaminated with Campylobacter and Salmonella. Cooking is considered the last defense of pathogen control for meals containing chicken livers. However, consumers' preference for pink color and a creamy texture as desired attributes in preparing liver pâté may lead to inadequate cooking, thereby increasing the risk of foodborne illness. Read More

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LC-HRMS/MS phytochemical profiling of Symphytum officinale L. and Anchusa ochroleuca M. Bieb. (Boraginaceae): Unveiling their multi-biological potential via an integrated approach.

J Pharm Biomed Anal 2021 Jul 24;204:114283. Epub 2021 Jul 24.

Biothermodynamics, TUM School of Life Sciences, Technical University of Munich, 85354, Freising, Germany. Electronic address:

This study was aimed at providing a comprehensive phytochemical characterization and multi-biological assessment of Symphytum officinale L., a medicinal plant with a noteworthy traditional use, and Anchusa ochroleuca M. Bieb. Read More

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Effects of acid rain on plant growth: A meta-analysis.

J Environ Manage 2021 Jul 27;297:113213. Epub 2021 Jul 27.

Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, 510642, China; Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China; Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China.

Anthropogenic driven acid gases emission has caused acid rain in many regions globally. Although efforts have been made to assess the effects of acid rain on terrestrial ecosystems, a systematic assessment of growth-related traits across plant aboveground and belowground is lacking. Hence, we performed a phylogenetically controlled meta-analysis of 755 observations from 69 independent studies to quantify the effects of acid rain on six growth-related traits of plant. Read More

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Targeting COVID-19 (SARS-CoV-2) main protease through active phytocompounds of ayurvedic medicinal plants - Emblica officinalis (Amla), Phyllanthus niruri Linn. (Bhumi Amla) and Tinospora cordifolia (Giloy) - A molecular docking and simulation study.

Comput Biol Med 2021 Jul 24;136:104683. Epub 2021 Jul 24.

Plant Cell Biotechnology Department, CSIR-Central Food Technological Research Institute, Mysuru, 570 020, Karnataka, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, Uttar Pradesh, India. Electronic address:

Coronavirus Disease-2019 (COVID-19), a viral disease caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) was declared a global pandemic by WHO in 2020. In this scenario, SARS-CoV-2 main protease (COVID-19 M), an enzyme mainly involved in viral replication and transcription is identified as a crucial target for drug discovery. Traditionally used medicinal plants contain a large amount of bioactives and pave a new path to develop drugs and medications for COVID-19. Read More

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Assessment of the tritium distribution in the vegetation cover in the areas of underground nuclear explosions at the Semipalatinsk test site.

J Environ Radioact 2021 Jul 27;237:106705. Epub 2021 Jul 27.

Institute of Radiation Safety and Ecology of the National Nuclear Center of the Republic of Kazakhstan, Beibit-atom str. 2, 071100, Kurchatov, Kazakhstan.

This paper provides results of assessment of the tritium distribution in the vegetation cover in the areas of underground nuclear explosions at the Semipalatinsk Test Site (STS). The research was conducted at the former "Degelen" test site along the streams that are one of the main channels of tritium migration from underground nuclear explosions epicenters. The dominant plant species Carex supine and Achnatherum splendens that belong to different ecological groups in relation to humidity were selected as representatives of the vegetation cover. Read More

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Conformational analysis and concentration detection of linuron: Spectroscopic NMR and SERS study.

Spectrochim Acta A Mol Biomol Spectrosc 2021 Jul 24;263:120223. Epub 2021 Jul 24.

Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia. Electronic address:

Linuron is a commonly used organic herbicide which is used in plant growth control. Due to its potential health concerns, the characterization and monitoring of linuron have been a subject of several studies. In this work, we employed nuclear magnetic resonance (NMR) and Raman spectroscopic techniques supported with the density functional theory (DFT) to investigate the conformational behavior and electronic aspects of linuron. Read More

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Integrating RNA-seq with functional expression to analyze the regulation and characterization of genes involved in monoterpenoid biosynthesis in Nepeta tenuifolia Briq.

Plant Physiol Biochem 2021 Jul 23;167:31-41. Epub 2021 Jul 23.

College of Pharmacy, Nanjing University of Chinese Medicine, Medicine, Nanjing, 210023, China; Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing, 210023, China. Electronic address:

Nepeta tenuifolia Briq. (Lamiaceae) is a medicinal plant historically used in the East Asia region to treat cold and fever, and it is currently used as a clinically effective treatment for respiratory diseases. We previously found that monoterpenoids are the dominant volatile secondary metabolites in N. Read More

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Involvement of rice transcription factor OsERF19 in response to ABA and salt stress responses.

Plant Physiol Biochem 2021 Jul 24;167:22-30. Epub 2021 Jul 24.

Jilin Province Engineering Laboratory of Plant Genetic Improvement, College of Plant Science, Jilin University, Changchun, China. Electronic address:

Soil salinity is a major environmental stressor that restricts the growth and yield of crops. Plants have evolved more complicated and precise mechanisms to cope with salt stress, as they cannot escape from harmful environments. In the current study we identified and characterized an AP2/ERF transcription factor in rice, OsERF19. Read More

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MOF-based multi-stimuli-responsive supramolecular nanoplatform equipped with macrocycle nanovalves for plant growth regulation.

Acta Biomater 2021 Jul 27. Epub 2021 Jul 27.

College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China. Electronic address:

Controllable and on-demand delivery of agrochemicals such as plant hormones is conducive to improving agrochemicals utilization, tackling water and environmental pollution, reducing soil acidification, and realizing the goals of precision agriculture. Herein, a smart plant hormone delivery system based on metal-organic frameworks (MOFs) and supramolecular nanovalves, namely gibberellin (GA)-loaded [email protected], is constructed through supramolecular host-guest interaction to regulate the growth of dicotyledonous Chinese cabbage and monocotyledonous wheat. The porous nanoscale MOF (NMOF) with a uniform diameter of 97 nm modified by quaternary ammonium (Q) stalks is served as a cargo reservoir, followed by the decoration of carboxylated leaning tower[6]arene (CLT6) based nanovalves on NMOF surfaces through host-guest interactions to fabricate [email protected] with a diameter of ∼101 nm and a zeta potential value of -13. Read More

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Direct acetylation of a conserved threonine of RIN4 by the bacterial effector HopZ5 or AvrBsT activates RPM1-dependent immunity in Arabidopsis.

Mol Plant 2021 Jul 27. Epub 2021 Jul 27.

Department of Life Sciences , Pohang University of Science and Technology, Pohang 37673, Republic of Korea; School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang 37673, Republic of Korea. Electronic address:

Plant pathogenic bacteria deliver effectors into plant cells to suppress immunity and promote pathogen survival; however, these effectors can be recognised by plant disease resistance (R) proteins to activate innate immunity. The bacterial acetyltransferase effectors HopZ5 and AvrBsT trigger immunity in Arabidopsis thaliana genotypes lacking SUPPRESSOR OF AVRBST-ELICITED RESISTANCE 1 (SOBER1). Using an Arabidopsis accession, Tscha-1, that naturally lacks functional SOBER1 but is unable to recognise HopZ5, we demonstrate that RESISTANCE TO P. Read More

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N, N, dimethyl-hexadecylamine modulates Arabidopsis root growth through modifying the balance between stem cell niche and jasmonic acid-dependent gene expression.

Gene Expr Patterns 2021 Jul 27:119201. Epub 2021 Jul 27.

Instituto de Investigaciones Químico-Biológicas, Universidad Michoacana de San Nicolás de Hidalgo. Edificio B3, Ciudad Universitaria, Morelia, Michoacán, Mexico. Electronic address:

N, N, dimethyl-hexadecylamine (DMHDA) is released as part of blends emitted by plant probiotic bacteria and affects root architecture, defense and nutrition of plants. Here, we investigated the changes in gene expression of transcription factors responsible of maintenance of the root stem cell niche and jasmonic acid signaling in Arabidopsis seedlings in response to this volatile. Concentrations of DMHDA that repress primary root growth were found to alter cell size and division augmenting cell tissue layers in the meristem and causing root widening. Read More

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Structurally diverse limonoids and bio-active evaluation from Trichilia connaroides.

Fitoterapia 2021 Jul 27:105001. Epub 2021 Jul 27.

Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun 666303, PR China. Electronic address:

Four new limonoids, named as trichiconlide G (1), 2-hydroxyltrijugin F (2), 23-oxo-21-hydroxyltrijugin F (3), 21-oxo-23-hydroxyltrijugin F (4), along with sixteen known analogues (5-20) were isolated from the leaves and twigs of Trichilia connaroides. Their structures and absolute configurations were determined by spectroscopic analyses, X-ray diffraction analysis, and TD-DFT-ECD calculations. Trichiconlide G (1) is one rare naturally occurring 1,2-seco phragmalin-type limonoid bearing a C-7/28 δ-lactone ring. Read More

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Inhibition of α-glucosidase by flavonoids of Cymbopogon citratus (DC) Stapf.

J Ethnopharmacol 2021 Jul 27:114470. Epub 2021 Jul 27.

University of Coimbra, Faculty of Pharmacy of University of Coimbra, Coimbra, Portugal; LAQV, REQUIMTE, Faculty of Pharmacy, University of Coimbra, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal. Electronic address:

Ethnopharmacological Relevance: Leaves extracts from Cymbopogon citratus (DC) Stapf. are widely used in traditional medicine exhibiting several in vivo biological activities, including antidiabetic. Several flavonoids, including aglycones and glycosides, were reported in this plant and previous studies suggested that flavonoids may interact with targets related to diabetes. Read More

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Light pollution forces a change in dung beetle orientation behavior.

Curr Biol 2021 Jul 27. Epub 2021 Jul 27.

Lund Vision Group, Department of Biology, Lund University, Sölvegatan 35B, 223 62 Lund, Sweden.

Increasing global light pollution threatens the night-time darkness to which most animals are adapted. Light pollution can have detrimental effects on behavior, including by disrupting the journeys of migratory birds, sand hoppers, and moths. This is particularly concerning, since many night-active species rely on compass information in the sky, including the moon, the skylight polarization pattern, and the stars, to hold their course. Read More

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A comprehensive picture of foraging strategies of Neoseiulus cucumeris and Amblyseius swirskii on western flower thrips.

Pest Manag Sci 2021 Jul 30. Epub 2021 Jul 30.

Department of Plant Protection, Faculty of Agriculture, University of Jiroft, Kerman, Iran.

Background: This study evaluated the potential of Neoseiulus cucumeris Oudemans and Amblyseius swirskii Athias-Henriot (Acari: Phytoseiidae) for controlling the western flower thrips (WFT), Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), by determining the functional response, numerical response, prey switching, and mutual interference behaviors of the predators.

Results: Type II functional response was detected for two predator species fed on WFT first instar. The attack rate was higher for A. Read More

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Fresh pomegranate juices from cultivars and local ecotypes grown in southeastern Italy: comparison of physicochemical properties, antioxidant activity and bioactive compounds.

J Sci Food Agric 2021 Jul 30. Epub 2021 Jul 30.

Department of Soil, Plant and Food Science (DISSPA), University of Bari Aldo Moro, via Amendola, 165/a, I-70126, Bari, Italy.

Background: Pomegranate juice has gained attention for its health properties, becoming consequently a highly demanded product. The revival of the pomegranate in Italy, as in other Mediterranean countries, starts with the planting of new intensive orchards characterized by both the new cultivation technique and new varieties. Thanks to growing demand and high productivity, pomegranate can become an interesting crop to diversify farm income. Read More

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Adaptive introgression facilitate adaptation to high latitudes in European aspen (Populus tremula L.).

Mol Biol Evol 2021 Jul 30. Epub 2021 Jul 30.

Linnean Centre for Plant Biology, Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Science, Uppsala, Sweden.

Understanding local adaptation has become a key research area given the ongoing climate challenge and the concomitant requirement to conserve genetic resources. Perennial plants, such as forest trees, are good models to study local adaptation given their wide geographic distribution, largely outcrossing mating systems and demographic histories. We evaluated signatures of local adaptation in European aspen (Populus tremula) across Europe by means of whole genome re-sequencing of a collection of 411 individual trees. Read More

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The Small GTPase OsRac1 Forms Two Distinct Immune Receptor Complexes Containing the PRR OsCERK1 and the NLR Pit.

Plant Cell Physiol 2021 Jul 31. Epub 2021 Jul 31.

Graduate School of Biological Sciences, Nara Institute of Science and Technology, Nara 630-0192, Japan.

Plants employ two different types of immune receptors, cell surface pattern recognition receptors (PRRs) and intracellular nucleotide-binding and leucine-rich repeat-containing proteins (NLRs), to cope with pathogen invasion. Both immune receptors often share similar downstream components and responses but it remains unknown whether a PRR and an NLR assemble into the same protein complex or two distinct receptor complexes. We have previously found that the small GTPase OsRac1 plays key roles in the signaling of OsCERK1, a PRR for fungal chitin, and of Pit, an NLR for rice blast fungus, and associates directly and indirectly with both of these immune receptors. Read More

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Unveiling the Patterns of Reticulated Evolutionary Processes with Phylogenomics: Hybridization and Polyploidy in the genus Rosa.

Syst Biol 2021 Jul 30. Epub 2021 Jul 30.

Institut Agro, Univ Angers, INRAE, IRHS, SFR QUASAV, F-49000 Angers, France.

Reticulation, caused by hybridization and allopolyploidization, is considered an important and frequent phenomenon in the evolution of numerous plant lineages. Although both processes represent important driving forces of evolution, they are mostly ignored in phylogenetic studies involving a large number of species. Indeed only a scattering of methods exists to recover a comprehensive reticulated evolutionary history for a broad taxon sampling. Read More

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Jasmonate inhibits adventitious root initiation through repression of CKX1 and activation of RAP2.6L transcription factor in Arabidopsis.

J Exp Bot 2021 Jul 30. Epub 2021 Jul 30.

Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, SE-90736 Umeå, Sweden.

Adventitious rooting is a de novo organogenesis process that enables plants to propagate clonally and cope with environmental stresses. Adventitious root initiation (ARI) is controlled by interconnected transcriptional and hormonal networks, but there is little knowledge of the genetic and molecular programs orchestrating these networks. Thus, we have applied genome-wide transcriptome profiling to elucidate the profound transcriptional reprogramming events preceding ARI. Read More

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Identification of a gene responsible for seedpod spine formation and other phenotypic alterations using whole genome sequencing analysis in Medicago truncatula.

J Exp Bot 2021 Jul 30. Epub 2021 Jul 30.

Grassland Agri-Husbandry Research Center, College of Grassland Science, Qingdao Agricultural University, Qingdao 266109, China.

In nature, some plant species produce seedpods with spines, which is an adaptive biological trait for protecting the seed and helping seed dispersal. However, the molecular mechanism of spine formation is still unclear. While conducting routine tissue culture and transformation in the model legume Medicago truncatula, we identified a smooth seedpod (ssp1) mutant with a suite of other phenotypic changes. Read More

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Household availability of dietary fats and cardiovascular disease and mortality: prospective evidence from Russia.

Eur J Public Health 2021 Jul 30. Epub 2021 Jul 30.

Department of Epidemiology and Public Health, University College London, London, UK.

Background: The aim of this analysis was to examine the prospective association between household availability of lard, butter, margarine and vegetable oil with all-cause mortality and cardiovascular disease (CVD) incidence in a general population sample in Russia.

Methods: Data from the Russian Longitudinal Monitoring Survey were used. 6618 adult individuals with no previous CVD who were recruited for the study in 1994 and followed-up in subsequent years were included in the analysis. Read More

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MiR825-5p targets TIR-NBS-LRR gene MIST1 and downregulates basal immunity against Pseudomonas syringae in Arabidopsis.

J Exp Bot 2021 Jul 30. Epub 2021 Jul 30.

Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Depto. Biología Celular, Genética y Fisiología, Málaga, Spain.

Plants encode numerous intracellular receptors known as nucleotide-binding leucine-rich repeat receptors (NLRs) that recognize pathogen-derived effectors or their activity to activate defenses. MiRNA regulate NLR genes in many species, often triggering the production of phasiRNAs. Most such examples involve genes encoding NLR carrying coiled-coil domains, although a few include genes encoding NLRs carrying a Toll/interleukin-1 domain (TNL). Read More

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