scholarly journals On the issue of protection of yellow lupine from anthracnose in the field

2021 ◽  
Vol 901 (1) ◽  
pp. 012002
Author(s):  
M G Drahanskaya ◽  
I K Savvicheva ◽  
P Y Lishchenko ◽  
V N Adamko
Keyword(s):  
Defense Mechanisms ◽  
Defense Mechanism ◽  
Thick Layer ◽  
Living Cells ◽  
Pathological Process ◽  
Lupinus Luteus ◽  
Positive Role ◽  
Increased Sensitivity ◽  
Yellow Lupine ◽  
Dark Green

Annotation Over the years of many years of research in the field, it was found that the creation of completely anthracnose-resistant varieties of yellow lupine (Lupinus Luteus L) is not possible. But at each stage of the pathological process, various defense mechanisms operate that determine the resistance or susceptibility of plants to diseases. There is a passive defense associated with morpho-biological features. A positive role in the control of anthracnose of early and mid-season forms with limited second-order shoots, fast-growing ones with anthocyanin coloration, xeromorphic leaf type, dark green color of vegetative organs, intensely colored seeds (2c, 4c, 2d), different corolla colors (numbers 52-87-2113 and 1477-1-17) and a flower (varieties Iputsky and Rodnik). Observations have shown that a waxy coating on a bean or a thick layer of hairs that helps water roll off, a more spreading bush that provides quick ventilation and moisture removal, reduces anthracnose infestation. It was found that the passive defense mechanism is largely due to the totality of morpho-biological characteristics and the nature of their interaction. Different infestation with anthracnose depending on the sowing density was shown: under conditions of sparse sowing (600 thousand seeds / ha), it averaged 4.6% during flowering and 8.0% at bean formation, and in a denser cenosis (1.2 mln. grain / ha), respectively, 18.7 and 62.0%. An active plant defense mechanism has been established and is being studied -hypersensitivity - this is an increased sensitivity of living cells of a plant - a host in places where a pathogen penetrates and its rapid death with the formation of necrosis. It was revealed that necrotic forms of yellow lupine are less affected by anthracnose during all phases of plant growth and development and, especially, during the formation of beans. At the site of penetration of the pathogen, an orange spot develops, around which a roller of dead tissue is formed, i.e., the pathogen’s access to living cells stops at the expense of which it feeds. The selected material with bean necrosis, without external sporulation, reduces the infectious load in the infected crops.

The Use of the Defense Mechanism Test to Aid in Understanding the Personality of Senior Executives and the Implications for Their Careers

2009 ◽  
Vol 30 (1) ◽  
pp. 73-96 ◽  
Author(s):  
Olya Khaleelee
Keyword(s):  
Crisis Intervention ◽  
Defense Mechanisms ◽  
Defense Mechanism ◽  
Senior Executives ◽  
Ideal Types ◽  
The Individual ◽  
Test Profiles ◽  
Real Test

This paper describes the use of the Defense Mechanism Test as an aid in helping to assess senior executives in four areas: for selection, development, career strategy, and crisis intervention. The origins of this test, developed to measure the defense mechanisms used to protect the individual from stress, are described. The paper shows how it was used to predict the capacity of trainee fighter pilots to withstand stress and its later application to other stressful occupations. Finally, some ideal types of the test are shown followed by four real test profiles, two of them with their associated histories.

A Study of Memory and Psychological Defense Mechanism in Julian Barnes’s The Sense of an Ending

2019 ◽  
Author(s):  
Hossein Aliakbari Harehdasht ◽  
Zahra Ekbatäni
Keyword(s):  
Defense Mechanisms ◽  
Defense Mechanism ◽  
Human Mind ◽  
The Novel ◽  
Psychological Defense ◽  
Julian Barnes ◽  
Self Image

In The Sense of an Ending, Julian Barnes portrays the mysterious workings of the human mind as it distorts facts towards the end of a self-image that one can live with. The protagonist in the novel deploys certain psychological defense mechanisms in order to protect himself from feelings of anxiety, only to experience even more profound anxiety due to his excessive use of them. The significance of the present paper lies in its novel view of the book. So far, the critique on the novel has mainly been focused on the workings of time on memory; however, the present paper investigates how psychological defense mechanisms blur the protagonist’s perception of reality and distort his memories. This paper also attempts to attract scholarly interest in the study of psychological defense mechanisms in the study of The Sense of an Ending which has so far been to the best of our knowledge overlooked

Comparison of Defense Mechanisms Utilized in Perception by Congenitally Blind and Sighted Respondents

1984 ◽  
Vol 55 (1) ◽  
pp. 228-230
Author(s):  
Sam Minskoff ◽  
John M. Curtis
Keyword(s):  
Defense Mechanisms ◽  
Defense Mechanism ◽  
Ego Defenses ◽  
Congenitally Blind

The present study examined specific defense mechanisms involved in perceptions of congenitally blind and sighted respondents. The Defense Mechanism Inventory was given 30 blind and 30 sighted subjects, randomly selected. One-way analyses of variance on specific defenses indicated nonsignificant differences between the groups who tended to show comparable patterns of ego defenses. Findings suggest any discrepancies in perception between such groups are not likely based on differences in the use of various defense mechanisms as measured by the Defense Mechanism Inventory.

scholarly journals Mitochondrial Hormesis in PancreaticβCells: Does Uncoupling Protein 2 Play a Role?

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Ning Li ◽  
Suzana Stojanovski ◽  
Pierre Maechler
Keyword(s):  
Stress Responses ◽  
Defense Mechanisms ◽  
Defense Mechanism ◽  
Cell Function ◽  
Uncoupling Protein ◽  
Glucose Sensing ◽  
Mitochondrial Uncoupling ◽  
Mitochondrial Uncoupling Protein ◽  
Cellular Stresses ◽  
Excessive Nutrients

In pancreaticβcells, mitochondrial metabolism translates glucose sensing into signals regulating insulin secretion. Chronic exposure ofβcells to excessive nutrients, namely, glucolipotoxicity, impairsβ-cell function. This is associated with elevated ROS production from overstimulated mitochondria. Mitochondria are not only the major source of cellular ROS, they are also the primary target of ROS attacks. The mitochondrial uncoupling protein UCP2, even though its uncoupling properties are debated, has been associated with protective functions against ROS toxicity. Hormesis, an adaptive response to cellular stresses, might contribute to the protection againstβ-cell death, possibly limiting the development of type 2 diabetes. Mitochondrial hormesis, or mitohormesis, is a defense mechanism observed in ROS-induced stress-responses by mitochondria. Inβcells, mitochondrial damages induced by sublethal exogenous H2O2can induce secondary repair and defense mechanisms. In this context, UCP2 is a marker of mitohormesis, being upregulated following stress conditions. When overexpressed in nonstressed naïve cells, UCP2 confers resistance to oxidative stress. Whether treatment with mitohormetic inducers is sufficient to restore or ameliorate secretory function ofβcells remains to be determined.

scholarly journals AUDREY TURNER’S CONFLICTS AND DEFENSE MECHANISMS IN KINSELLA’S 'FINDING AUDREY'

2018 ◽  
Vol 3 (1) ◽  
pp. 45
Author(s):  
M. Aprianto Budie Nugroho ◽  
Sely Viladinia
Keyword(s):  
Anxiety Disorder ◽  
Research Design ◽  
Defense Mechanisms ◽  
Qualitative Method ◽  
Defense Mechanism ◽  
Narrative Research ◽  
Internal Conflict ◽  
Main Character

A story becomes interesting because of the existence of the characters’ conflicts. This research objectives were to investigate the conflicts and defense mechanisms in Audrey Turner, the main character of Finding Audrey novel written by Sophie Kinsella. This research was conducted in qualitative method by using narrative research design. The collected data were identified, categorized, and analyzed based on literature and psychology perspectives of Islam’s (2016) theory and defense mechanisms by Cramer (2006). The findings show that person vs him/herself as the internal conflict is found 52 times (67.5%). The first external conflict found is person vs person which appears 23 times (29.9%) It is followed by person vs society and person vs nature conflicts, each of which appears once only (1.3%). Three kinds of defense mechanisms are found as well. The denial defense mechanisms are found 72 times (54.1%) whereas projection and identification are each found as many as 48 times (36.1%) and 13 times (9.8%). It means that  Audrey, as the main character, mostly faces conflicts against her own self and feels of fears affected from her anxiety disorder and people around her. To deal with her conflicts, Audrey mostly uses denial as a defense mechanism to protect herself.

scholarly journals Features of psychological protection of students of IHE who are engaged in swimming

2021 ◽  
pp. 36-39
Author(s):  
N. Dakal ◽  
O. Cherevichko ◽  
K. Smirnov
Keyword(s):  
Defense Mechanisms ◽  
Defense Mechanism ◽  
Self Regulation ◽  
Regulatory System ◽  
Fear Of Failure ◽  
Traumatic Experiences ◽  
Protective Mechanisms ◽  
Psychological Defense ◽  
The Individual ◽  
And Behavior

The purpose of psychological protection is to maintain the integrity of the "self-concept" of the individual by protecting his consciousness from negative traumatic experiences, fear of failure, anxiety or uncertainty in their actions. The authors who studied this phenomenon in sports note that the psychological protection of the athlete - is a system of mechanisms and methods of mental self-regulation of consciousness and behavior of the individual in extreme mental conditions. Psychological defense mechanisms are manifested in students as a regulatory system that is activated in a situation of internal or external conflict. Based on it, students often show such a defense mechanism as substitution, regression, and compensation. Considering the manifestation of protective mechanisms in boys and girls, we obtained the following indicators: reactive formations (73% in girls and 51% in boys) and projection (73% in girls and 54% in boys) (p <0.05); in boys prevails: suppression (65% in boys and 45% in girls) and intellectualization (69% in boys and 56.1% in girls) (p <0.05). We found differences in the choice of the dominant mechanism of psychological protection by swimming students. The leading mechanism in the studied contingent is substitution, and the least preferred is suppression. The study identified the manifestation of the main mechanisms of psychological protection in students who swim and analyzed certain types of protection with a description of the specific features of the system of protective mechanisms and the level of their impact depending on gender differences.

scholarly journals Mastitis in Small Ruminants

2021 ◽  
Author(s):  
Christine T. Mwenge Kahinda
Keyword(s):  
Immune Response ◽  
Complex Disease ◽  
Antimicrobial Agents ◽  
Defense Mechanism ◽  
Human Health Risk ◽  
Small Ruminants ◽  
Economic Loss ◽  
Pathological Process ◽  
Response Mechanism ◽  
Immunological Responses

Bacterial mastitis in small ruminants is a complex disease, with massive economic loss in dairy sheep/goat industry due to poor productivity. The current mastitis prevention strategy relies on culling of infected ewes or does and or the use of antimicrobial agents to eliminate the bacterial infection. This has a potential risk for developing antibiotic resistant bacteria, posing human health risk from consumption of raw sheep or goat dairy products. Existing experimental and licensed vaccines on the market are ineffective against reducing the risk of mastitis in herds or flocks. Raising the needs for development of improved vaccines against mastitis for use in sheep and goats. This review examines, current understanding of the pathological processes and immunological responses against bacterial mastitis, using S. aureus as an example. By highlighting the protective defense mechanism induced in the udder against S. aureus mastitis. Based on evidence from published studies on pathological process and protective immune response mechanism, the need for improved vaccines for prevention of mastitis in small ruminant is highlighted and the development of a vaccine capable of enhancing immune response mechanism, that reduce the establishment of intramammary infection through induction of local IgA, IgG2 and Th17 immune responses is proposed.

scholarly journals Strong Sour Tamarind Flavor of Methyl-2,3,4- trihydroxyhexanoate, a new compound isolated from Leaves of Tamarindus indica, L. plays a role in plant defense mechanisms

2012 ◽  
pp. 26-44
Author(s):  
Suprana Biswas ◽  
Nabanita Chakraborty ◽  
Supriya Chakraborty
Keyword(s):  
Antioxidant Activity ◽  
Plant Defense ◽  
Inhibitory Activity ◽  
Defense Mechanisms ◽  
Defense Mechanism ◽  
Aspergillus Tamarii ◽  
Methanol Fraction ◽  
Wide Range ◽  
Plant Defense Mechanism ◽  
Defensive Activity

Flavoring compounds of plants play a significant role in plant defense mechanism. Compound responsible for strong sour tamarind flavor has been isolated and identified from Methanol fraction of tamarind leaves (TrMF). Chromatographic and spectral analyses of TrMF revealed the compound to be methyl 2,3,4- trihydroxyhexanoate. This compound showed a strong antioxidant activity as well as strong antimicrobial activity. It showed significant antioxidant activity with Ic50 value of 2.5μg/ml whereas tert-butyl-1-hydroxytoluene and ascorbic acid revealed 26.0μg/ml and 5.0μg/ml, respectively. It also revealed strong inhibitory activity against Aspergellosis disease-causing fungi namely; Aspergillus fumigatus, Aspergillus tamarii and Aspergillus niger at all concentrations. Streptococcus aureus and Escherichia coli were much more sensitive to methyl-trihydroxy-hexanoate at all concentrations than Pseudomonas aeruginosa. This pure compound exhibited concentration dependent inhibitory and stimulatory activity on rice seeds germination and seedling growth. It showed strong inhibitory activity up to 62.5ppm concentration and below this concentration the effect was stimulatory. Methyl- trihydroxyhexanoate exhibited wide range of defensive activity against microbes and crop seeds and also possesses potent antioxidative activity. Thus play an important role in plant defense mechanism and can be utilized as a valuable source of bio-herbicides and pesticides.

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