resting spores

Listing 1 - 10 from 48 for resting spores

nvps journal:PRELIMINARY REPORT ON STEM AND ROOT ROT OF VIOLA AND PANSY
... from one to several antheridia. There are slight differences in the average diameter of the oospores (or resting spores) (Fig 1.C) developed upon maize extract agar (D-21, E-20, H-19.5 microns). ... are grown upon sterile vegetable matter that is later mixed with garden soil which, after a resting period of five days, is planted with clean Viola seedlings. These experiments are merely preliminary to ...
myweb.tiscali.co.uk

nvps journal:
... this problem. Mycocentrospora acerina infects a range of plants, and in pansies it is recognized by unsightly black spots on the leaves; very similar to that which appears on roses. The fungal spores are carried by rain splash, and resting spores in dead plant material can remain dormant for years in the soil. Prevention being preferable to cure I ...
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Red Stele Root Rot of Strawberry, HYG-3014-95
... crop, with the possible exception of loganberry. P. fragariae persists in the soil as thick-walled resting spores (oospores). When the soil is moist or wet, some of the oospores germinate and form structures called sporangia, which are filled with the infectious spores of the fungus (zoospores). These microscopic zoospores are released into the soil when it becomes completely saturated ...
ohioline.osu.edu

Phytophthora Root Rot of Raspberry, HYG-3207-98
... winter. Disease Development The fungi persist primarily as mycelium in infected roots or as dormant resting spores in the soil. When the soil is moist, reproductive structures (sporangia) are formed upon the ... (oospores) in the soil. Within each of these structures, a number of individual spores called zoospores are formed. These zoospores are expelled into the soil during periods when the soil is ...
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SWEET PEA
... and sometimes break. With a hand lens, many small salmon-colored pustules bearing great quantities of spores can be seen on the diseased parts. Gather and burn all infected plant parts after the ... ): Under moist conditions, the leaves become covered with a grayish moldy growth. Thick-walled, brown resting spores develop within the moldy tissue. Since this is not a serious disease of this host in ...
plantpathology.tamu.edu

NYBG.org: Fusarium Wilt And Its Effect On Bananas
... the water system, adding to the wilting symptoms. (See link for reasons for symptoms) Once the spores have penetrated the entire sap system, the F. oxysporum begins to branch outward. The fungus grows from the xylem into the surrounding, dead fleshy tissues and produces many resting spores (chlamydospores). (www.helios.com) Interestingly, Fusarium oxysporum can only branch out from the sap once ...
sciweb.nybg.org

APSnet Education Center - Lab Exercise - Oomycetes
... for fertilization. In both homothallic and heterothallic species, fertilization results in a thick-walled zygote called an oospore. Oospores function as resting spores. They are produced in infected plant tissue, and are released into soil as the plant tissue degrades. They germinate either directly by a germ tube with or without a sporangium on the end, or ...
www.apsnet.org

Fuchsia Compendium
... . Rare on fuchsias but can be found flattened along stem or veins of leaves. SCLEROTIA - the resting spores of fungi like Botrytis. SCREENING VENTS - if you are serious about showing and want unblemished ... days. Moss peat is the result of semi decayed sphagnum and used in many soilless composts. SPORES - minute seeds shed by fungi. SPORTS, MUTATIONS - this is when there is a significant change in ...
www.bpfs.org.uk

Fuchsia Compendium
... . Rare on fuchsias but can be found flattened along stem or veins of leaves. SCLEROTIA - the resting spores of fungi like Botrytis. SCREENING VENTS - if you are serious about showing and want unblemished ... days. Moss peat is the result of semi decayed sphagnum and used in many soilless composts. SPORES - minute seeds shed by fungi. SPORTS, MUTATIONS - this is when there is a significant change in ...
www.bpfs.org.uk More from this site

Mycology - Structure and Function - Spores
... Conclusion Questions Rhizomorphs Introduction Definitions Function Conclusion Questions Sclerotia & Stromata Introduction Stromata Sclerotia Germination Conclusion Questions Spores, Sexual and Asexual Introduction Spores are specialised cells of the fungus that can function as resting or dispersal propagules. Each spore has the potential to generate another individual of the species. In contrast ...
bugs.bio.usyd.edu.au