scholarly journals Biologisation of production and technological processes in nursery farming

2021 ◽  
pp. 19-25
Author(s):  
E. A. Egorov ◽  
Zh. А. Shadrina ◽  
G. А. Kochyan
Keyword(s):  
Vascular System ◽  
Plant Immunity ◽  
Fungal Species ◽  
Species List ◽  
Fruit Crop ◽  
Technological Advances ◽  
Environment Adaptation ◽  
Infection Pathways ◽  
Stress Burden ◽  
Soil Activity

We conducted a retrospective analysis of national scientific and technological advances by technological design to manifest the demand for organisation processes remodelling towards the methods and approaches of the sixth design, especially in biotechnology. The article defines terms such as nursery, biologisation, promising technology and resource conservation. We analyse the fruit crop seedling production and structure of nursery-specific processes. We determine the main agrocenotic components most susceptible to chemical and technogenic impacts. Studies of soil fertility and biota prioritised the challenge of declined soil activity and biogenicity. We establish that an increased chemical pressure on fruit nursery agrocenoses leads to disturbances in benign microflora, microbiotic, acaro- and entomosystems, alters plant infection pathways and immune status. We report destructive manifestations of microbiotic, entomo- and acarosystems in agrocenoses via the emergence of new pathogenic fungal species, root rotting agents, vascular system necroses (tracheomycoses), resistant typically dominant pathogen strains, higher pathogenicity, the expansion of species list and ranges of bacterial communities, phytoplasmas, viruses and viroids, a more aggressive invasion of new pests, including stem pathogens, emerging hazardous adaptations in economically impactive phytophages. Furthermore, we consider the scientific and practical issues in fruit crop reproduction: sweeping off forms (genotypes) from selection, changes in infection pathways in candidate parental plants, reduced “plant — external environment” adaptation, impaired plant immunity under climatic and anthropogenic stress, selection of candidates with a higher production value under environmental stress burden, reduction of best-quality planting stock, seedling root system retardation, massive crown invasion with fungal and bacterial agents, inadequacy of trait databasing for promising varieties and genotyping techniques. The priority role of agrocenotic biologisation in sustainable fruit nursery is substantiated through adopting modern approaches, especially in biotechnology, based on molecular biology, biochemistry and genetic engineering.

scholarly journals Anoikis Resistance: An Essential Prerequisite for Tumor Metastasis

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Yong-Nyun Kim ◽  
Kyung Hee Koo ◽  
Jee Young Sung ◽  
Un-Jung Yun ◽  
Hyeryeong Kim
Keyword(s):  
Cancer Cells ◽  
Cancer Metastasis ◽  
Epithelial Mesenchymal Transition ◽  
Vascular System ◽  
The Body ◽  
Membrane Microdomains ◽  
Cellular Mechanisms ◽  
Anoikis Resistance ◽  
Mesenchymal Transition ◽  
Technological Advances

Metastasis is a multistep process including dissociation of cancer cells from primary sites, survival in the vascular system, and proliferation in distant target organs. As a barrier to metastasis, cells normally undergo an apoptotic process known as “anoikis,” a form of cell death due to loss of contact with the extracellular matrix or neighboring cells. Cancer cells acquire anoikis resistance to survive after detachment from the primary sites and travel through the circulatory and lymphatic systems to disseminate throughout the body. Because recent technological advances enable us to detect rare circulating tumor cells, which are anoikis resistant, currently, anoikis resistance becomes a hot topic in cancer research. Detailed molecular and functional analyses of anoikis resistant cells may provide insight into the biology of cancer metastasis and identify novel therapeutic targets for prevention of cancer dissemination. This paper comprehensively describes recent investigations of the molecular and cellular mechanisms underlying anoikis and anoikis resistance in relation to intrinsic and extrinsic death signaling, epithelial-mesenchymal transition, growth factor receptors, energy metabolism, reactive oxygen species, membrane microdomains, and lipid rafts.

scholarly journals Species of fungi recommended for inclusion in the 2nd edition of the Red Data Book of the Oryol Region

2021 ◽  
Vol 3 (10) ◽  
pp. 54-64
Author(s):  
Sergey Volobuev ◽  
◽  
Eugene Popov ◽  
Sergey Bolshakov ◽  
Tatyana Tsutsupa ◽  
...  
Keyword(s):  
Ganoderma Lucidum ◽  
Fungal Species ◽  
Iucn Red List ◽  
Grifola Frondosa ◽  
Limiting Factors ◽  
Species List ◽  
Red Data Book ◽  
Polyporus Umbellatus ◽  
Region Data ◽  
Data Book

Based on the results of the long-term (2008–2020) studies of macromycetes in Oryol Region, a list of 24 fungal species recommended for the second edition of the regional Red Data Book has been compiled. The list includes 4 species of basidial fungi (Clavariadelphus pistillaris, Cortinarius violaceus, Grifola frondosa, and Gyroporus cyanescens) that were included in the first edition of the Red Data Book of Oryol Region (2007) and another 20 species (Aeruginoscyphus sericeus, Bulgaria inquinans, Clavaria zollingeri, Ganoderma lucidum, Gloiodon strigosus, Gyroporus castaneus, Hericium coralloides, Holwaya mucida, Hydnocristella himantia, Metuloidea murashkinskyi, Phellinidium ferrugineofuscum, Polyporus umbellatus, Ramaria fennica, Ramariopsis crocea, Ramariopsis pulchella, Rhizochaete sulphurina, Rhodonia placenta, Rhodotus palmatus, Skeletocutis odora, Triblidium caliciiforme) that are proposed for protection for the first time. Each species is provided with the Latin name, followed by brief characteristics of its current taxonomic position, biology and ecology, population‐limiting factors in the region, data on the range in Russia and on the distribution in Oryol Region, as well as the recommended protection category. The presented species list includes two species (Clavaria zollingeri, Rhodotus palmatus) from the IUCN Red List of Threatened Species and three species (Ganoderma lucidum, Grifola frondosa, Polyporus umbellatus) recorded in the Red Data Book of the Russian Federation (2008). Two species (Aeruginoscyphus sericeus and Rhodotus palmatus) are new to Oryol Region.

scholarly journals CaPti1/CaERF4 module positively regulates pepper resistance to bacterial wilt disease through coupling enhanced immunity and dehydration tolerance

2021 ◽  
Author(s):  
Shi Lanping ◽  
Li Xia ◽  
Weng Yahong ◽  
Cai Hanyang ◽  
Liu Kaisheng ◽  
...  
Keyword(s):  
Bacterial Wilt ◽  
Vascular System ◽  
Plant Immunity ◽  
Severe Disease ◽  
Dehydration Stress ◽  
Dependent Manner ◽  
Aba Signaling ◽  
Virus Induced Gene Silencing ◽  
Mobility Shift ◽  
Dehydration Tolerance

Bacterial wilt, a severe disease that affects over 250 plant species, is caused by Ralstonia solanacearum through vascular system blockade. Although both plant immunity and dehydration tolerance might contribute to disease resistance, whether and how they are related are still unclear. Herein, we provide evidence that immunity against R. solanacearum and dehydration tolerance are coupled and regulated by CaPti1-CaERF4 module. By expression profiling, virus-induced gene silencing in pepper and overexpression in Nicotiana benthamiana, both CaPti1 and CaERF4 were upregulated by R. solanacearum inoculation, dehydration stress and exogenously applied ABA. They in turn phenocopied with each other in promoting pepper resistance to bacterial wilt not only by activating HR cell death and SA-dependent CaPR1, but also by activating dehydration tolerance related CaOSM1 and CaOSR1, and stomata closure to reduce water loss in ABA signaling dependent manner. Yeast-two hybrid assay showed that CaERF4 interacts with CaPti1, which was confirmed by co-immunoprecipitation and pull-down assays. Chromatin immunoprecipitation and electrophoretic mobility shift assay showed that, upon R. solanacearum inoculation, CaPR1, CaOSM1 and CaOSR1 were directly targeted and positively regulated by CaERF4 via binding GCC-box or DRE-box, which was potentiated by CaPti1. In addition, CaPti1-CaERF4 complex might act downstream ABA signaling, since the exogenously ABA did not alter stomata aperture regulated by CaPti1-CaERF4 module. Importantly, CaPti1-CaERF4 module was found also acts positively in pepper growth and response to dehydration stress. Collectively, the results suggest that immunity and dehydration tolerance are coupled and positively regulated by CaPti1-CaERF4 in pepper plants to enhance resistance against R. solanacearum.

High-resolution measurement of birefringent fine structure in living cells using a new polarized light microscope

1995 ◽  
Vol 53 ◽  
pp. 54-55
Author(s):  
Rudolf Oldenbourg
Keyword(s):  
Light Microscope ◽  
Fluorescent Dyes ◽  
Polarized Light ◽  
Processing System ◽  
Video Camera ◽  
Molecular Organization ◽  
Computer Assisted ◽  
Image Recording ◽  
Birefringent Crystal ◽  
Technological Advances

The recent renaissance of the light microsope is fueled in part by technological advances in components on the periphery of the microscope, such as the laser as illumination source, electronic image recording (video), computer assisted image analysis and the biochemistry of fluorescent dyes for labeling specimens. After great progress in these peripheral parts, it seems timely to examine the optics itself and ask how progress in the periphery facilitates the use of new optical components and of new optical designs inside the microscope. Some results of this fruitful reflection are presented in this symposium.We have considered the polarized light microscope, and developed a design that replaces the traditional compensator, typically a birefringent crystal plate, with a precision universal compensator made of two liquid crystal variable retarders. A video camera and digital image processing system provide fast measurements of specimen anisotropy (retardance magnitude and azimuth) at ALL POINTS of the image forming the field of view. The images document fine structural and molecular organization within a thin optical section of the specimen.

A Scanning Electron Microscopic Study of Pro-Vascular Cellular Morphology in Chaetophora Incressata

1985 ◽  
Vol 43 ◽  
pp. 638-639
Author(s):  
A. E. Hotchkiss ◽  
A. T. Hotchkiss ◽  
R. P. Apkarian
Keyword(s):  
Green Algae ◽  
Vascular Plants ◽  
Vascular System ◽  
Higher Plants ◽  
Wall Structure ◽  
Electron Microscopic ◽  
Physiological Processes ◽  
Scanning Electron Microscopic Study ◽  
Scanning Electron Microscopic ◽  
Scanning Electron

Multicellular green algae may be an ancestral form of the vascular plants. These algae exhibit cell wall structure, chlorophyll pigmentation, and physiological processes similar to those of higher plants. The presence of a vascular system which provides water, minerals, and nutrients to remote tissues in higher plants was believed unnecessary for the algae. Among the green algae, the Chaetophorales are complex highly branched forms that might require some means of nutrient transport. The Chaetophorales do possess apical meristematic groups of cells that have growth orientations suggestive of stem and root positions. Branches of Chaetophora incressata were examined by the scanning electron microscope (SEM) for ultrastructural evidence of pro-vascular transport.

“Getting High Resolution Out of A High Voltage Microscope”

1980 ◽  
Vol 38 ◽  
pp. 822-825
Author(s):  
David J. Smith
Keyword(s):  
Electron Microscope ◽  
High Resolution ◽  
High Voltage ◽  
Theoretical Limit ◽  
Voltage Electron ◽  
High Voltage Electron Microscope ◽  
High Voltage Electron ◽  
Technological Advances ◽  
Potential Improvement ◽  
Lower Voltage

The initial attractions of the high voltage electron microscope (HVEM) stemmed mainly from the possibility of considerable increases in electron penetration through thick specimens compared with conventional 100KV microscopes, although the potential improvement in resolution associated with the decrease in election wavelength had been fully appreciated for many years (eg. Cosslett, 1946)1, even if not realizable in practice. Subsequent technological advances enabled the performance of lower voltage machines to be brought closer to the theoretical limit, to be followed in turn by more recent projects which have been successful, eventually, in achieving even higher resolution with dedicated higher voltage instruments such as those at Kyoto (500KV)2, Munich (400KV)3, Ibaraki (1250KV)4 and Cambridge (600KV)5. It does not necessarily follow however that the performance of journal high voltage microscopes can be easily upgraded, retrospectively, to the same level, as will be discussed in detail below.

Family Support in Early Hearing Detection and Intervention (EHDI) Systems

2012 ◽  
Vol 22 (1) ◽  
pp. 11-21
Author(s):  
Patti Martin ◽  
Nannette Nicholson ◽  
Charia Hall
Keyword(s):  
Family Support ◽  
Hard Of Hearing ◽  
Critical Role ◽  
Annual Conference ◽  
Federal Law ◽  
Think Tank ◽  
Learning Collaborative ◽  
Technological Advances ◽  
Improved Outcomes ◽  
Program Components

Family support has evolved from a buzzword of the 1990s to a concept founded in theory, mandated by federal law, valued across disciplines, and espoused by both parents and professionals. This emphasis on family-centered practices for families of young children with disabilities, coupled with federal policy initiatives and technological advances, served as the impetus for the development of Early Hearing Detection and Intervention (EHDI) programs (Nicholson & Martin, in press). White, Forsman, Eichwald, and Muñoz (2010) provide an excellent review of the evolution of EHDI systems, which include family support as one of their 9 components. The National Center for Hearing Assessment and Management (NCHAM), the Maternal and Child Health Bureau, and the Center for Disease Control Centers cosponsored the first National EHDI Conference. This conference brought stakeholders including parents, practitioners, and researchers from diverse backgrounds together to form a learning collaborative (Forsman, 2002). Attendees represented a variety of state, national, and/or federal agencies and organizations. This forum focused effort on the development of EHDI programs infused with translating research into practices and policy. When NCHAM, recognizing the critical role of family support in the improvement of outcomes for both children and families, created a think tank to investigate the concept of a conference centered on support for families of children who are deaf or hard of hearing in 2005, the “Investing in Family Support” (IFSC) conference was born. This conference was specifically designed to facilitate and enhance EHDI efforts within the family support arena. From this venue, a model of family support was conceptualized and has served as the cornerstone of the IFSC annual conference since 2006. Designed to be a functional framework, the IFSC model delineates where and how families find support. In this article, we will promote and encourage continued efforts towards defining operational measures and program components to ultimately quantify success as it relates to improved outcomes for these children and their families. The authors view this opportunity to revisit the theoretical underpinnings of family support, the emerging research in this area, and the basics of the IFSC Model of Family Support as a call to action. We challenge professionals who work with children identified as deaf or hard of hearing to move family support from conceptualization to practices that are grounded in evidence and ever mindful of the unique and dynamic nature of individual families.

FM Verification for the 21 st Century

2008 ◽  
Vol 18 (1) ◽  
pp. 4-9 ◽  
Author(s):  
Leisha Eiten ◽  
Dawna Lewis
Keyword(s):  
Hearing Loss ◽  
Hearing Aids ◽  
Hearing Aid ◽  
Current Technology ◽  
The Past ◽  
Technological Advances ◽  
Children With Hearing Loss

Background: For children with hearing loss, the benefits of FM systems in overcoming deleterious effects of noise, distance, and reverberation have led to recommendations for use beyond classroom settings. It is important that audiologists who recommend and fit these devices understand the rationale and procedures underlying fitting and verification. Objectives: This article reviews previousguidelines for FM verification, addresses technological advances, and introduces verification procedures appropriate for current FM and hearing-aid technology. Methods: Previous guidelines for verification of FM systems are reviewed. Those recommendations that are appropriate for current technology are addressed, as are procedures that are no longer adequate for hearing aids and FM systems utilizing more complex processing than in the past. Technological advances are discussed, and an updated approach to FM verification is proposed. Conclusions: Approaches to verification andfitting of FM systems must keep pace with advances in hearing-aid and FM technology. The transparency approach addressed in this paper is recommended for verification of FM systems coupled to hearing aids.

Client Safety and Telepractice in a Clinic or Home Setting

2013 ◽  
Vol 3 (2) ◽  
pp. 41-43
Author(s):  
Lyn Tindall
Keyword(s):  
Communication Disorders ◽  
Speech Pathology ◽  
Professional Issues ◽  
Efficacy Data ◽  
Home Setting ◽  
Safe Environment ◽  
Technological Advances ◽  
Assessment And Treatment ◽  
Available Technology ◽  
And Gender

Telepractice is an exciting addition to the arsenal of speech-language pathologists for delivering services. Efficacy data continues to emerge proving the benefit of using available technology to provide assessment and treatment for persons with a variety of communication disorders, ages, and gender. In addition to providing assessment and treatment using telepractice technology, several professional issues have arisen which must be addressed before implementation of this service delivery system. Licensure and reimbursement have been at the forefront, as well they should. However, client safety is another issue that should also be addressed. Providing speech pathology services in a safe environment is a concept which may not have been considered before technological advances made it possible to provide services to someone while not being physically present.

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