iCEV Plant Science Part 3

plant pathogens which cause harm to plants

organisms such as fungi, bacteria, and viruses

non-living organisms such as weather conditions, air pollution, and toxic chemicals

disease producing agents which cause harm to other organisms

single celled organisms including viruses, fungi and bacteria

taxonomic kingdom which included yeast, molds and smuts

single celled or non cellular microorganisms which lack chlorophyll and reproduce by fission

small, infectious particles composed of a protein coat and a nucleic acid

fungus which produced a growth on the surface of damp and decaying organic matter

diseases in plants caused by bacteria

any agent which destroys or prevents the growth of fungi

small openings on the surface of leaves which allow for gasses and water to pass in and out of leaves

causes discoloration, wilting and death in plants

process of plants drooping or shriveling due to lack of water

groups of macro-molecules which carry genetic information to control all cell function; in the form of DNA and various forms of RNA

fungal disease mostly on woody plants which causes damage to the bark

smaller stem which attaches a leaf to the main stem

practice of growing different crops on the same land over a period of several growing seasons; aids in insect control and preservation of soil quality;ex: growing corn for two years, then switching to soybeans on the same land

stalk of a plant left in the ground after harvest

plants which are planted not for harvesting purposes, but to control soil erosion and weeds, as well as improve soil quality

single celled reproductive structure of non-flowering plants, fungi and bacteria which develop into a new individual without sexual fusion

where the stem of the plant meets the roots

process of a seed sprouting and beginning to grow

plants which are not deliberately planted; differ from a weed in that they can be encouraged to grow and not compete with the intended crop.