Related Experiment Video
Updated: Mar 1, 2026

08:04
Culturing and Screening the Plant Parasitic Nematode Ditylenchus dipsaci
Published on: January 31, 2022
4.0K
Nitrate analogs as attractants for soybean cyst nematode
Akito Hosoi1, Tsutomu Katsuyama1, Yasuyuki Sasaki1
1a Department of Bioscience , Tokyo University of Agriculture , Tokyo , Japan.
Bioscience, Biotechnology, and Biochemistry
|June 9, 2017
Summary
Soybean cyst nematode (SCN) is drawn to nitrate compounds. However, SCN
Area of Science:
- Agricultural Science
- Nematology
- Plant Pathology
Background:
- Soybean cyst nematode (SCN) is a significant pathogen impacting soybean production.
- Understanding SCN's host-seeking behavior is crucial for developing effective control strategies.
Purpose of the Study:
- To investigate novel attractants for soybean cyst nematode (SCN).
- To elucidate the role of nitrate and its analogs in SCN attraction.
Main Methods:
- Conducted attraction assays to identify SCN attractants.
- Utilized nitrate and various nitrate analogs in attraction experiments.
- Compared SCN response to chemical attractants versus plant-derived attractants.
Main Results:
- SCN demonstrated attraction to nitrate and its analogs.
- SCN recognized and responded to nitrate gradients.
- Attraction to nitrates was not observed on agar containing nitrate.
- SCN was attracted to azuki root, independent of nitrate presence.
Conclusions:
- Nitrate and its analogs act as attractants for SCN.
- SCN exhibits distinct attraction mechanisms for chemical compounds versus plant roots.
- Further research is needed to understand the specific chemosensory pathways involved.
Related Concept Videos
2° Amines to N-Nitrosamines: Reaction with NaNO2
5.6K
Secondary amines react with nitrous acid to form N-nitrosamines, as depicted in Figure 1. Nitrous acid, a weak and unstable acid, is formed in situ from an aqueous solution of sodium nitrite and strong acids, such as hydrochloric acid or sulfuric acid, in cold conditions. In the presence of an acid, the nitrous acid gets protonated. The subsequent loss of water results in the formation of the electrophile known as nitrosonium ion.
5.6K
Key Elements for Plant Nutrition
24.6K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
24.6K
Inorganic Nitrogen Assimilation
677
Nitrogen is an essential element in biological systems, forming a crucial component of proteins, nucleic acids, and other cellular constituents. Many bacteria and archaea acquire nitrogen in the form of nitrate (NO₃⁻) or ammonia (NH₃), which are then assimilated into biomolecules through specific enzymatic pathways.Assimilatory Nitrate ReductionWhen nitrate enters the cell, it undergoes a two-step reduction process known as assimilatory nitrate reduction. Initially, the enzyme...
677
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Overview
4.0K
Nitrous acid and nitric acids are two types of acids containing nitrogen, among which nitrous acid is weaker than nitric acid. Nitrous acid with a pKa value of 3.37 ionizes in water to give a nitrite ion and the hydronium ion.
The nitrous acid is unstable. Hence, it is formed in situ from a solution of sodium nitrite and cold aqueous acids such as hydrochloric or sulfuric acid. In an acidic solution, the –OH group of nitrous acid undergoes protonation to give oxonium ion, followed by...
The nitrous acid is unstable. Hence, it is formed in situ from a solution of sodium nitrite and cold aqueous acids such as hydrochloric or sulfuric acid. In an acidic solution, the –OH group of nitrous acid undergoes protonation to give oxonium ion, followed by...
4.0K

