2 edition of Effects of commercial herbicides on the spore germination of common soil fungi. found in the catalog.
Effects of commercial herbicides on the spore germination of common soil fungi.
C J. Reid
Written in English
|Contributions||Manchester Polytechnic. Department of Biological Sciences.|
Germination is the process by which an organism grows from a seed or similar structure. The most common example of germination is the sprouting of a seedling from a seed of an angiosperm or addition, the growth of a sporeling from a spore, such as the spores of hyphae from fungal spores, is also germination. Contrasting reports are available in regard to effect of herbicide on soil microflora. Microorganisms are able to degrade some herbicides and utilize them as a source of biogenic elements but other group of herbicides may affect microbes adversely. In our study microbial activity including bacteria, fungi, Azotobacter as well as phosphate solubilizing fungal population was highest when no Cited by: 3.
The germination of dormant spores of Bacillus species is the first crucial step in the return of spores to vegetative growth, and is induced by nutrients and a variety of non-nutrient : Peter Setlow. A similar thing occurs with organisms that grow from spores, such as certain plants and fungi. A number of factors contribute to the germination of a seed or spore.
Spore Germination (cont.) Some germinating spores exhibit different types of tropism, i.e., a directional growth response to an external stimulus, e.g., Negative autotropism - germ tubes emerge from a point on the spore furthest away from a touching spore Positive tropism - germination . de Miranda JCC, Harris PJ () Effects of soil phosphorus on spore germination and hyphal growth of arbuscular mycorrhizal fungi. New Phytol – CrossRef Google Scholar de Souza FA, Declerck S () Mycelium development and architecture, and spore production of Scutellospora reticulata in monoxenic culture with Ri T-DNA transformed Cited by:
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Three methods have been used to investigate the effects of a number of commercial herbicides on the growth of certain soil fungi: measurements of hyphal extension across agar plates; measurements of hyphal extension along sterilized plant material; and manometric techniques.
Three points, in particular, emerged from these studies. Three methods have been used to investigate the effects of a number of commercial herbicides on the growth of certain soil fungi: measurements of hyphal extension across agar plates; measurements of hyphal extension along sterilized plant material; and manometric techniques.
Three points, in particular, emerged from these by: decrease the population density of mycorrhizal fungi on our campus because herbicides would kill weeds that the fungi would have a symbiotic relationship with.
Since we controlled for the type of plants on our plots, the herbicides should have the same effect on the plants in all the plots. Sources Cited: Benzerara K., Mio Size: KB.
Measurement of spore number in soil: Effect of herbicides on spore number o f G. mosseae in the soil was determined by the wet sieving and decanting method as. Herbicides are the most widely used pesticide groups in the world.
It is probable that such heavily used and particularly soil-applied herbicides have highly negative effects on soil microflora. One of the important groups of soil microflora is the mycorrhizal fungi which live symbiotically with plants’ roots and are known to have many benefits toFile Size: KB.
Effects of selected herbicides and fungicides on growth, sporulation and conidial germination of entomopathogenic fungus Beauveria bassiana Article (PDF Available) in. BACKGROUND. The in vitro fungicidal effects of six commonly used fungicides, namely fluazinam, propineb, copper(II) hydroxide, metiram, chlorothalonil and mancozeb, and herbicides, namely isoxaflutole, fluazifop‐P‐butyl, flurochloridone, foramsulfuron, pendimethalin and prosulfocarb, on mycelial growth, sporulation and conidial germination of entomopathogenic fungus Beauveria Cited by: 7.
Effects of Moisture and Temperature on Growth and Spore Germination in some Fungi Members of the Aspergillus glaucus group of fungi (A. ruber, A. repens, A. chevalieri and A. amstelodami) were more tolerant of low water activities than any of the other fungi studied and could be divided into two groups on the basis of their temperature Cited by: dinyl)oxyJacetic acid).
The herbicidal effects on seed germination and seedling development were determined using 2 bunch- grasses, blue grama var. common and sideoats el reno, and I sodgrass, buffalograss var. texoka. All 3 species are important components of the herbaceous vegetation South- western by: Measurement of spore number in soil: Effect of herbicides on spore number of G.
mosseae in the soil was determined by the wet sieving and decanting method as described by Gerdemann and Nicolson (). At each harvest, 20 g soil sample from each replicate was collected to a depth of cm mycorrhizosphere soils. Effect of citrus root exudates on germination of chlamydospores of the vesicular increase the hyphal growth from Glomus spores are arbuscular mycorrhizal fungus, Glomus epigaeum.
usually present in the plant rhizosphere and may be Mycolo produced by soil micro-organisms, which in turn HEPPER, C, M. ().Cited by: The effects of several herbicides used in pome fruit orchards on the germination of spores and growth of mycelia of Botrytis cinerea, Mucor piriformis and Penicillium expansum in vitro and the.
The effects of the herbicides on radial growth during the whole test period (14 days at 25°C and 24 days at lS’C), and intensity of sporulation were quantified. Generally, phenmedipham plus desmedipham (1: l), metolachlor, and chloridazon had pronounced adverse effects on all fungi.
In the first experiment, the percentage spore germination and hyphal length of G. etunicatum, measured at ten different P levels and three periods of incubation, were affected by the P status of the soil.
The best correslation with P level in the soil occurred at 7 d of incubation for spore germination and at 14 d far hyphal growth and hyphal growth by: with commercial formulations of 16 adjuvants, 24 herbicides, nine fungicides and four insecticides at 2X, 1X (highest labelled product dose rate), X, X and X concentrations.
These chemicals were tested for their eﬀects on spore germination. Selected herbicides and fungicides at 1X were also tested for their inﬂuenceCited by: Abstract. The first event in the formation of a new fungus colony is the germination of a spore.
The infection of a plant by a parasitic fungus and the resulting production of disease is initiated in most instances by a spore germinating within or near the potential host by: Spore germination is an essential developmental stage in the life cycle of all filamentous fungi.
Three important steps can be distinguished during spore germination: activation of the resting spore in response to appropriate environmental conditions, isotropic growth that involves water uptake and the resumption of numerous metabolic Cited by: The effects of soil properties modulated by long cultivation history of E+ grass, the glyphosate treatment and tilling of soil on mycorrhizal fungal structures of F.
pratensis and E. repens were analyzed using generalized linear models (R package glm). The number of detected arbuscules, vesicles and hyphae were regarded as Poisson Cited by: 9.
The effect of spore concentration on spore germination and germtube growth ofTrichoderma hamatum on water agar and on potato dextrose agar (PDA) was studied. Increasing inoculum size up to spores/plate on PDA and up to spores/plate on water agar shortened the incubation period required for germtubes emergence and increased germination by: 1.
Herbicides are able to affect AM fungi when a second crop is planted through their effects on plant metabolism and growth (Makarian et al., ). Soil microbial communities and soil respiration. The Effect of Herbicides on Soil Microorganisms I.
The Effect of 2,4-Dichlorophenoxyacetic Acid on Some Phases of the Nitrogen Metabolism of Bacillus cereus EMMETT J. JOHNSON' AND ARTHUR R. COLMER Departnment of Botany, Bacteriology, and Plant Pathology, Louisiana State University, Baton Rouge, Louisiana Received for publication Octo Although some work has been done on the effect of.Original article Effects of selected fungicides on in vitro spore germination and vegetative growth of Ascosphaera aggregata MS Goettel GM Duke GB Schaalje, KW Richards Agriculture Canada Research Station, PO BoxMain, Lethbridge, Alberta, TIJ 4B1 (Received 8 August ; accepted 13 April ) Summary — Five fungicides were studied for their in vitro effects on spore germination Cited by: 4.Hypobaric pressure has direct fungistatic effects on fungal spore germination and mycelium growth of various storage fungi.
Apelbaum and Barkai-Golan () showed that the degree of inhibition increased with the reduction in pressure below mm Hg.