The Role of Phytoalexins in Plant Protection

2007 ◽  
pp. 175-190 ◽  
Author(s):  
R. Hammerschmidt ◽  
E. K. Dann
Keyword(s):  
Plant Protection

scholarly journals The Role of Source‐sink Dynamics in the Assessment of Risk to Non‐target Arthropods from the Use of Plant Protection Products

2021 ◽  
Author(s):  
Gavin Lewis ◽  
Axel Dinter ◽  
Charlotte Elston ◽  
Michael Thomas Marx ◽  
Christoph Julian Mayer ◽  
...  
Keyword(s):  
Plant Protection ◽  
Plant Protection Products ◽  
Source Sink

Plant Resistance Genes for Fungal Pathogens - Physiological Models and Identification in Cereal Crops

1991 ◽  
Vol 46 (11-12) ◽  
pp. 969-981 ◽  
Author(s):  
Wolfgang Knogge
Keyword(s):  
Plant Defense ◽  
Resistance Genes ◽  
Fungal Pathogens ◽  
Plant Protection ◽  
Defense Responses ◽  
Avirulence Gene ◽  
Physiological Models ◽  
Plant Genes ◽  
Plant Pathogen Interaction

The complex biological phenomenon “resistance” can be reduced to single Mendelian traits acting on both the plant and the pathogen side in a number of pathosystems. According to the “gene-for-gene hypothesis”, the outcome of a plant/pathogen interaction in these cases is incompatibility if a plant carrying a particular resistance gene and a pathogen with the complementary avirulence gene meet. This suggests a causal role of resistance genes in a recognition process initiating active plant defense responses. Fundamentally different strategies are followed to identify these genes molecularly depending on the plant and pathogen species involved. Fungal diseases of crop plants, especially those of cereals, cause dramatic yield losses worldwide. It is assumed that a molecular characterization of plant genes conferring resistance to fungal pathogens will lead to a better understanding of the plant defense system in general permitting the development of new methods of crop plant protection.

scholarly journals Entomopathogenic nematodes: can we use the current knowledge on belowground multitrophic interactions in future plant protection programmes? – Review

2019 ◽  
Vol 55 (No. 4) ◽  
pp. 242-253 ◽  
Author(s):  
Anamarija Jagodič ◽  
Stanislav Trdan ◽  
Žiga Laznik
Keyword(s):  
Biological Control ◽  
Entomopathogenic Nematodes ◽  
Insect Pests ◽  
Current Knowledge ◽  
Plant Protection ◽  
Multitrophic Interactions ◽  
Herbivore Attack ◽  
Below Ground ◽  
Chemical Stimuli

Plants under herbivore attack emit mixtures of volatiles that can attract the natural enemies of the herbivores. Entomopathogenic nematodes (EPNs) are organisms that can be used in the biological control of insect pests. Recent studies have shown that the movement of EPNs is associated with the detection of chemical stimuli from the environment. To date, several compounds that are responsible for the mediation in below ground multitrophic interactions have been identified. In the review, we discuss the use of EPNs in agriculture, the role of belowground volatiles and their use in plant protection programmes.

scholarly journals The Role of Cultivation Systems in Quality Sugar Beet Production

2005 ◽  
pp. 134-138
Author(s):  
Kinga Diána Ungai ◽  
Zoltán Győri
Keyword(s):  
Sugar Beet ◽  
Production System ◽  
Plant Protection ◽  
Plant Production ◽  
High Yield ◽  
Yield And Quality ◽  
The Stability ◽  
Saccharose Content

Producing sugar beet, as it is a demanding field crop, has contributed to the raising standard of plant production. It has an outstanding place among the plants that are cultivated in the intensive plant production system. Rentability of sugar manufacture is determined by the stability of yield and the quality (saccharose content) of sugar beet. In this way, the fundamental interest both of the producers and the processing industry is high yield and quality, year by year. The yield and the quality of the sugar beet are mainly determined by the plant production system, so we studied the effect of fertilization, irrigation and plant protection.

scholarly journals The role of natural regulators of the number of brown-tail moth (Euproktis chrisorrhoea l.) in the stands of the Penza region

2020 ◽  
pp. 15-17
Author(s):  
Vladimir Viktorovich Dubrovin ◽  
Viktor Evgenievich Mladentsev
Keyword(s):  
Statistical Analysis ◽  
Inverse Relationship ◽  
Plant Protection ◽  
Pest Population ◽  
Subsequent Application ◽  
Age Range ◽  
Biotic Environment

The role of natural regulators of the number of brown-tail moth and their significance in the dynamics of the pest population has been studied. In the course of a statistical analysis of the influence of factors of the biotic environment on older caterpillars, an inverse relationship was established between their numbers and survival in a given age range. This is important for the subsequent application of the obtained data in the practice of plant protection.    

scholarly journals The role of insects in the spreading of pathogens and development of diseases on sunflower in the Krasnodar region of the Russian Federation

2020 ◽  
Vol 222 ◽  
pp. 02025
Author(s):  
Maria Iwebor ◽  
Sergey Frolov ◽  
Irina Frolova ◽  
Olga Shabaldas ◽  
Maria Chernikova
Keyword(s):  
Russian Federation ◽  
Plant Protection ◽  
Plant Diseases ◽  
Food And Feed ◽  
The Russian Federation ◽  
Krasnodar Region ◽  
Phytopathogenic Microorganisms ◽  
Main Components ◽  
Plant Protection System

The insects play a major role in the spreading of pathogens and the development of diseases on sunflower in the Krasnodar region of the Russian Federation. We established connections between the most common insects and phytopathogenic microorganisms. The main components of an integrated plant protection system are considered. When deciding on the usage of insecticides it is necessary to take into account not only direct, but also indirect insect damage (the development of plant diseases after damage, and as a result, a yield decrease, contamination of food and feed with dangerous mycotoxins).

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