10 Easy Steps to Prevent Common Garden Diseases
... 1. Practice good sanitation. Start with a clean planting site, free of last year’s crop debris. Debris from the previous season’s crops may harbor diseases and insects 2. Purchase high quality plants and seeds. Select plants with healthy-looking leaves and strong stems. Avoid collecting seeds from y ...
... 1. Practice good sanitation. Start with a clean planting site, free of last year’s crop debris. Debris from the previous season’s crops may harbor diseases and insects 2. Purchase high quality plants and seeds. Select plants with healthy-looking leaves and strong stems. Avoid collecting seeds from y ...
answers
... Birch and maize/corn for example What is the main difference between a plant and an animal cell? Plant cells have a cell wall and animal cells do not. Which coniferous tree which grows in Finland drops its needles in the autumn? (European) Larch (Larix decidua) What is a mycorrhiza? A mycorrhiza is ...
... Birch and maize/corn for example What is the main difference between a plant and an animal cell? Plant cells have a cell wall and animal cells do not. Which coniferous tree which grows in Finland drops its needles in the autumn? (European) Larch (Larix decidua) What is a mycorrhiza? A mycorrhiza is ...
Fungi feed by absorbing nutrients from the organic material in which
... Fungi feed by absorbing nutrients from the organic material in which they live. Fungi do not have stomachs. They must digest their food before it can pass through the cell wall into the hyphae. Hyphae secrete acids and enzymes that break the surrounding organic material down into simple molecules th ...
... Fungi feed by absorbing nutrients from the organic material in which they live. Fungi do not have stomachs. They must digest their food before it can pass through the cell wall into the hyphae. Hyphae secrete acids and enzymes that break the surrounding organic material down into simple molecules th ...
Plant Defense - Henriksen Science
... They do not play a role in photosynthesis, growth, or respiration. HOWEVER… ...
... They do not play a role in photosynthesis, growth, or respiration. HOWEVER… ...
Plant Diseases - Pukekohe High School
... 8. Damping off – seedling stems rot at soil level and fall over – very young seedlings ...
... 8. Damping off – seedling stems rot at soil level and fall over – very young seedlings ...
Take a closer look at... FUNGI
... helping to disperse millions of spores. Woods and meadows are the best places to see fungi - why not see how many you can spot? ...
... helping to disperse millions of spores. Woods and meadows are the best places to see fungi - why not see how many you can spot? ...
Plant Defenses
... Many plants produce chemicals that can deter attacks - a plant secondary compound is a chemical produced by the plant that fulfills no metabolic requirement but deters attack by other organisms. Include: alkaloids - caffeine, nicotine, cocaine tannins oils - peppermint, sage ...
... Many plants produce chemicals that can deter attacks - a plant secondary compound is a chemical produced by the plant that fulfills no metabolic requirement but deters attack by other organisms. Include: alkaloids - caffeine, nicotine, cocaine tannins oils - peppermint, sage ...
Plant use of endophytic fungi in defense
Plant use of endophytic fungi in defense occurs when endophytic fungi, which live symbiotically with the majority of plants by entering their cells, are utilized as an indirect defense against herbivores. In exchange for carbohydrate energy resources, the fungus provides benefits to the plant which can include increased water or nutrient uptake and protection from phytophagous insects, birds or mammals. Once associated, the fungi alter nutrient content of the plant and enhance or begin production of secondary metabolites. The change in chemical composition acts to deter herbivory by insects, grazing by ungulates and/or oviposition by adult insects. Endophyte-mediated defense can also be effective against pathogens and non-herbivory damage.This differs from other forms of indirect defense in that the fungi live within the plant cells and directly alter their physiology. In contrast, other biotic defenses such as predators or parasites of the herbivores consuming a plant are normally attracted by volatile organic compounds (known as semiochemicals) released following damage or by food rewards and shelter produced by the plant. These defenders vary in the time spent with the plant: from long enough to oviposit to remaining there for numerous generations, as in the ant-acacia mutualism. Endophytic fungi tend to live with the plant over its entire life.