- 行业: Plants
- Number of terms: 21554
- Number of blossaries: 0
- Company Profile:
The American Phytopathological Society (APS) is a nonprofit professional, scientific organization dedicated to the study and control of plant diseases.
The region through which rust urediniospores move from southern areas through all grain-producing areas of the United States to Canada each season.
Industry:Plants
A methylated polymer of galacturonic acid found in the middle lamella and the primary cell wall of plants; jelly-forming substance found in fruit.
Industry:Plants
Precipitation with a low pH, due to the presence of nitric and sulfuric acid formed by the combination of air pollutants (N0x and S02) with water.
Industry:Plants
A protein translated from an entire viral genome which is then cleaved by proteases (protein-degrading enzymes) into the active protein products.
Industry:Plants
Complex organic substance or group of substances that impregnate the cell walls of xylem vessels and certain other plant cells; constitutes wood.
Industry:Plants
Failure of chlorophyll development, caused by disease or a nutritional disturbance; fading of green plant color to light green, yellow, or white.
Industry:Plants
The portion of the seedling or plant near the surface of the soil; in grafted woody plants, the scion portion of the plant near the soil surface.
Industry:Plants
A memory aid that diagrams the three important components necessary for disease: susceptible plant, virulent pathogen and favorable environment.
Industry:Plants
Part of the yearly xylem growth ring in woody plants formed late in the growing season and consisting of cells smaller than those of springwood.
Industry:Plants
Protective, resistant, but permeable structure secreted externally to the cell membrane in plants, bacteria, fungi, and certain other organisms.
Industry:Plants
