2,142 Works

Do dietary stresses affect the immune system of Periplaneta americana (Blattaria: Blattidae)?

J. P. Duarte, C. E. Silva, P. B. Ribeiro & M. C. Cárcamo
Abstract Stresses can be caused by multiple biotic and abiotic factors and their effects can affect both the biology and the immune system of insects. American cockroach – Periplaneta americana (Linnaeus, 1758) (Blattaria: Blattidae) –besides being an excellent model species, has great medical importance because it can act as a mechanical vector of several pathogens. This study aimed to evaluate the influence of starvation, dehydration and both stresses on weight, and total and differential haemocyte...

Do dietary stresses affect the immune system of Periplaneta americana (Blattaria: Blattidae)?

J. P. Duarte, C. E. Silva, P. B. Ribeiro & M. C. Cárcamo
Abstract Stresses can be caused by multiple biotic and abiotic factors and their effects can affect both the biology and the immune system of insects. American cockroach – Periplaneta americana (Linnaeus, 1758) (Blattaria: Blattidae) –besides being an excellent model species, has great medical importance because it can act as a mechanical vector of several pathogens. This study aimed to evaluate the influence of starvation, dehydration and both stresses on weight, and total and differential haemocyte...

GBIF Occurrence Download

Occdownload Gbif.Org
A dataset containing 2717932 species occurrences available in GBIF matching the query: All data. The dataset includes 2717932 records from 23691 constituent datasets: 29 records from Nomenclatural and type catalogue of Athoracophoridae (Mollusca: Eupulmonata: Succineoidea): a synopsis of the first 185 years of biodiscovery in the South West Pacific region. 19 records from Assemblage of living benthic foraminifera in sediment core CD146_55921#1, 63-150 µm. 18 records from Aves Argentinas / Asociación Ornitológica del Plata -...

Coastal dune invasion and restoration at Point Reyes: the ecology of European sea rocket, Cakile maritime

Shay McGraw, Jay Luce Nelson, Yuxin Shen & Aidé Villegas
California coastal dune ecosystems are prime targets for conservation and restoration efforts due to their high native plant diversity and rates of endemism. Invasive dune species such as European sea rocket (Cakile maritima) may disrupt key ecosystem processes by altering dune physical processes and outcompeting native species, decreasing the success of the endangered species beach layia (Layia carnosa) and Tidestrom's lupine (Lupinus tidestromii) at Point Reyes National Seashore in Marin County, California. We investigated potential...

РАСШИРЕНИЕ ГЕНЕТИЧЕСКОГО ПОЛИМОРФИЗМА ИСХОДНОГО СЕЛЕКЦИОННОГО МАТЕРИАЛА КУКУРУЗЫ МЕТОДОМ РЕДИПЛОИДИЗАЦИИ ТЕТРАПЛОИДНЫХ ПОПУЛЯЦИЙ

Э.Б. Хатефов, Ю.А. Керв, В.Н. Бойко, М.А. Головина & С.П. Аппаев
Проблема поиска новых источников селекционно ценных признаков кукурузы (Zea mays L.) с широким генетическим полиморфизмом требует от селекционеров создания и совершенствования эффективности методов получения исходного селекционного материала. Цель исследований – изучение эффективности метода редиплоидизации тетраплоидных популяций кукурузы, как источника исходного селекционного материала для гибридной селекции. В процессе проведения исследований решены задачи по оценке селекционно ценных признаков, выделению источников и доноров генов, контролирующих ценные фенотипические признаки, определена практическая значимость нового исходного материала для селекции. В работе...

Abiotic and biotic drivers of fatty acid tracers in ecology: a global analysis of chondrichthyan profiles

Lauren Chrstine Meyer, Heidi Pethybridge, Peter Nichols, Crystal Louise Beckmann & Charles Pierre-Marie Huveneers
This dataset includes the mean fatty acid profiles for 6 shark, ray and chimaeras.

ИННОВАЦИИ В СОЗДАНИИ СКОРОСПЕЛЫХ СОРТОВ КАРТОФЕЛЯ ДЛЯ УСЛОВИЙ СЕВЕРО-ЗАПАДА И ЕВРОПЕЙСКОГО СЕВЕРА РФ

Е. Зинаида, К. Марина, К. Зинаида, Г. Людмила & Ч. Валерия
Сорта картофеля с коротким периодом вегетации высоко ценятся в условиях Северо-Запада и Европейского Севера РФ. Они успевают сформировать урожай до массового развития заболеваний и на их возделывание требуется меньше средств защиты. Наши исследования направлены на изучение механизма воздействия био- и абиотических факторов на скороспелость, продуктивность и ее элементы у межвидовых гибридов картофеля на различных агроландшафтах. Широкую норму реакции на условия среды проявили: 5403/2, полученный от скрещивания Чародей х 943/9 и 1604/4 (95100/27 х 943/9). По...

Cowpea Yield Evaluation Trials - Kachia, 1990

Ousmane Boukar
The Cowpea Breeding Unit develops improved cowpea lines with high grain yield potential and resistance/tolerance to biotic and abiotic stresses and possessing farmers and consumers preferences. Data generated from multi-year evaluation trials carried out on different sets of materials developed within several projects conducted by the cowpea breeding unit are contained in the database.

EVALUATION OF ALPINE AND OTHER SPRINGS BASED ON THEIR DIATOM AND NEMATODE COMMUNITIES

E. Ursula & B. Maurizio
Springs are well-known important freshwater and diversity resources, but their protections is largely lacking. Standardized protocols for conservation purposes are difficult to establish due to springs’ extreme abiotic and biotic variability. This variability derives from the transition of aquatic and terrestrial and surface and subsurface environments in springs, and an often high degree of rareness and endemism of organisms targeted in spring research so far (e.g. mosses, arthropods). Supported by an alpine spring pilot study...

BBGD454: an Online Database for Blueberry Genomic Data Transcriptome analysis of Blueberry using 454 EST sequencing

Nadim Alkharouf
This database houses over 500,000 sequences that were generated and assembled into approximately 15,000 contigs, annotated and functionally mapped to Gene Ontology (GO) terms. Blueberry (Vaccinium corymbosum) is a major berry crop in the United States. Next generation sequencing methodologies, such as 454, have been demonstrated to be successful and efficient in producing a snap-shot of transcriptional activities during an organism’s developmental stage(s) or its response to biotic or abiotic stresses. Such application of this...

Cowpea Yield Evaluation Trials - Bangladesh, 1987

Ousmane Boukar
The Cowpea Breeding Unit develops improved cowpea lines with high grain yield potential and resistance/tolerance to biotic and abiotic stresses and possessing farmers and consumers preferences. Data generated from multi-year evaluation trials carried out on different sets of materials developed within several projects conducted by the cowpea breeding unit are contained in the database.

Induction of volatile organic compound emissions from leaves upon ozone and methyl jasmonate (MeJa) treatments

Shuai Li
Plants biosynthesized a wide variety of volatile organic compound (BVOCs) consisting of volatile isoprenoids, LOX products, saturated aldehydes, benzenoids, and several hydrocarbon volatiles. BVOCs have a considerable impact on biosphere–atmosphere interactions. BVOCs play key roles in attraction of pollinators, plant growth and development, plant defense against herbivores and pathogens, plant-plant signaling and protect plants against abiotic stresses such as high light, temperature and oxidative stress. Nevertheless, not all plants constitutively emit BVOCs, but all plant...

Distribution of microarthropods across altitude and aspect in the sub-Antarctic: climate change implications for an isolated oceanic island

Elizabeth A. Hugo-Coetzee & Peter C. Le Roux
Current climate change is altering the distribution of species across both broad and fine scales. Examining contemporary species distributions along altitudinal gradients is one approach to predicting species future distributions, as species occurrence patterns at cold, high altitudes are expected to resemble the species distribution patterns currently observed at warmer, lower altitudes if warming occurs. Strong changes in climate have been observed in the sub-Antarctic over the last 50 years, with a 1.5 °C increase...

Arbuscular mycorrhizal fungi: crop management systems alter community structure and affect soybean growth and tolerance to water stress

Lisseth Zubieta
Arbuscular mycorrhizal fungi (AMF) are best known for their potential to help plants acquire nutrients, especially phosphorous. These microbes improve soil health by promoting soil aggregation and carbon sequestration, and further benefit plants by helping them withstand biotic and abiotic stress. Currently, there are 200 recognized species of AMF within the phylum Glomeromycota. Recent studies indicate that individual AMF species differ in the benefits they provide, with some even acting as parasites. Moreover, AMF community...

AGROECOLOGICAL AND ECONOMIC ASSESSMENT OF CORN HYBRIDS IN THE UDMURT REPUBLIC

Gamlet Y. Ostaev Sergey I. Kokonov
This article discusses the problem of adaptation of corn hybrids to the conditions of the Udmurt Republic. Corn is the main raw material of high quality silage. When cultivating field crops, the variability of quantitative traits is undoubtedly caused by the growing conditions and the “genotype × environment” interaction. An integrated approach to the consideration of this issue showed that the growth of potential productivity of agricultural crops due to breeding and cultivation technology does...

AGROECOLOGICAL AND ECONOMIC ASSESSMENT OF CORN HYBRIDS IN THE UDMURT REPUBLIC

Gamlet Y. Ostaev Sergey I. Kokonov
This article discusses the problem of adaptation of corn hybrids to the conditions of the Udmurt Republic. Corn is the main raw material of high quality silage. When cultivating field crops, the variability of quantitative traits is undoubtedly caused by the growing conditions and the “genotype × environment” interaction. An integrated approach to the consideration of this issue showed that the growth of potential productivity of agricultural crops due to breeding and cultivation technology does...

Toward a mechanistic understanding of the combined action of copper micropollutants and light irradiation on phytoplankton: an investigation across multiple levels of biological organization

Giulia Cheloni
In the aquatic environment, the effects of micropollutants to photosynthetic microorganisms are influenced by multiple biotic and abiotic factors. However, the combined effects of environmental stressors and specie-specie interaction on micropollutant effects are understudied. The present doctoral work aims to get an insight on the processes governing the combined action of light and copper micropollutants on phytoplankton. The research approach included studies with the green alga Chlamydomonas reinhardtii and cyanobacterium Synechocystis sp. at molecular, cellular...

ИНТРОДУКЦИЯ КУЛЬТУРЫ GUIZOTIA ABYSSINICA CASS В УСЛОВИЯХ СРЕДНЕВОЛЖСКОГО РЕГИОНА

Т. Я. Прахова & В. А. Прахов
Гвизоция абиссинская – новая культура для России, обладающая рядом ценных признаков. Цель исследований – испытание гвизоции абиссинской (Guizotia abissinica Cass) в контрастных климатических условиях Среднего Поволжья. В статье изложены результаты полевого опыта по выращиванию гвизоции абиссинской в 2015–2017 гг. в условиях Пензенской области. Гвизоция устойчива к засухе и повышенным температурам, отзывчива на дополнительное увлажнение. Метеорологические условия периода вегетации гвизоции были благоприятными для роста и развития культуры с умеренным увлажнением – ГТК – 1,05 при среднесуточных...

The Role of TOR Complex 2 in the Maintenance of Plasma Membrane Tension Homeostasis

Margot Riggi
Constant changes in the environment constitute a threat for the maintenance of the homeostasis of an organism, and require all uni- or multicellular species to adapt in order to survive and prosper. The two multiprotein TOR Complexes, both nucleated around the conserved Target Of Rapamycin kinase, are now broadly considered as major regulators of eukaryotic cellular growth, serving as direct transducers of extracellular biotic and abiotic signals. On top of this traditional view, there is...

Probing and modelling membrane tension in the context of ESCRT-III regulation

Guillaume Molinard
A living cell is defined by its separation from the exterior medium. Lipids and proteins form this semi-permeable barrier. This boundary is important for the cell to protect itself against biotic or abiotic stresses, and to regulate exchanges with its environment. However, this membrane, eventhough fairly resistant mechanically, is prone to breaking under osmotic stress, which can lead to a damaging stretch of the membrane. In resting conditions, a cell actively maintains an osmotic pressure...

Cowpea Yield Evaluation Trials - Badeggi, 1987 - 1996

Ousmane Boukar
The Cowpea Breeding Unit develops improved cowpea lines with high grain yield potential and resistance/tolerance to biotic and abiotic stresses and possessing farmers and consumers preferences. Data generated from multi-year evaluation trials carried out on different sets of materials developed within several projects conducted by the cowpea breeding unit are contained in the database.

GBIF Occurrence Download

Occdownload Gbif.Org
A dataset containing 10945016 species occurrences available in GBIF matching the query: TaxonKey: Chromista. The dataset includes 10945016 records from 7160 constituent datasets: 332 records from Neogene palynomorpha from site 81-552. 1257 records from WildNet - Queensland Wildlife Data. 81 records from Nannofossil abundance of Hole 14-136. 37 records from Protozoa Abundance_Microbial Parameters. 3 records from Benthic foraminifera abundance of Hole 84-566A. 24 records from A checklist of epibiont suctorian and peritrich ciliates (Ciliophora) on...

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