EurekaMag
+ Translate
+ Most Popular
The pigeon tick (Argas reflexus): its biology, ecology, and epidemiological aspects
Prevalence of hemoglobin abnormalities in Kebili (Tunisian South)
Lipogranuloma: a preventable complication of dacryocystorhinostomy
Value of basal plasma cortisol assays in the assessment of pituitary-adrenal insufficiency
Bees from the Belgian Congo. The acraensis group of Anthophora
Placing gingival retraction cord
Total serum IgE, allergy skin testing, and the radioallergosorbent test for the diagnosis of allergy in asthmatic children
Acariens plumicoles Analgesoidea parasites des oiseaux du Maroc
Injuries of terminal phalanges of the fingers in children
Biology of flowering and nectar production in pear (Pyrus communis)
Das Reliktvorkommen der Aspisviper (Vipera aspis L.) im Schwarzwald
Hydrological modelling of drained blanket peatland
Pathologic morphology and clinical significance of the anomalous origin of the left circumflex coronary artery from the right coronary artery. General review and autopsy analysis of 30 cases
Cyto genetic analyses of lymphocyte cultures after exposure to calcium cyclamate
Axelrodia riesei, a new characoid fish from Upper Rio Meta in Colombia With remarks concerning the genus Axelrodia and description of a similar, sympatric, Hyphessobrycon-species
Favorable evolution of a case of tuberculosis of pancreas under antibiotic action
RIFM fragrance ingredient safety assessment, Valencene, CAS Registry Number 4630-07-3
Parenteral microemulsions: an overview
Temperate pasture: management for grazing and conservation
Evaluation of a new coprocessed compound based on lactose and maize starch for tablet formulation
Thermal expansion and cracking of three confined water-saturated igneous rocks to 800C
Revision of the genera of the tribe Stigmoderini (Coleoptera: Buprestidae) a discussion of phylogenetic relationships
Anal tuberculosis. Report of a case
Gastric tuberculosis in the past and present
Adaptive responses of the cardiovascular system to prolonged spaceflight conditions: assessment with Holter monitoring

Suppression of pythium splendens in a hawaiian usa soil by calcium and microorganisms


Suppression of pythium splendens in a hawaiian usa soil by calcium and microorganisms



Phytopathology 76(2): 215-220



ISSN/ISBN: 0031-949X

Germaination inhibition of sporangia of Pythium splendens in seven different soil types was associated with high Ca content and high total microbial population. Conducive soils which were low in Ca content and microbial population became suppressive to P. splendens after amendment with 0.6% Ca and mixture of microorganisms, or with Ca and 1% alfalfa meal to increase the population of indigenous microorganisms. Germination of sporangia of P. splendens on a suppressive soil from soil from South Kohala, HI, increased with time of storage, and the increase of germination was associated with the decrease of total microbial population. Germination inhibition was restored to suppressive soil stored for 1 and 1.5 yr, by adjusting the moisture content of soils from -110 to -7 bars to increase the microbial population. Suppressiveness was restored to soil stored for 3 yr by adding fungi, bacteria, actinomycetes, or their combination. Conductive soils which were high in Ca and low in microbial population were converted to suppressive soil by adding alfalfa meal to increase the microbial population. These result that a combination of high Ca and high microbial population is the cause of suppression in the soil from South Kohala. The inhibition characteristics of the suppressive soil created by amending the conductive soil with Ca and alfalfa meal were similar to those of naturally suppressive soil from South Kohala. Naturally and induced suppressive soils were inhibitory or stimulatory to the same species of microorganisms and the inhibitory effect of both soils was associated with microbial activity. Inhibition of sporangial germination of P. splendens on both soils decreased when sporangia were separated from soil by a polycarbonate membrane. Neither volatile inhibitors nor nonvolatile inhibitors were detected in either soil. Both soils were fungistatic and their inhibitory effect was not transferable. Similarity of inhibition characteristics indicates that the artificially created suppressive soil operates by the same mechanism as the naturally suppressive soil, and supports the hypothesis that a combination of high Ca and high microbial population is responsible for the suppression of P. splendens in the suppressive soil from South Kohala.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 006544969

Download citation: RISBibTeXText

Related references

The role of calcium and microorganisms in suppression of cucumber damping off caused by pythium splendens in a hawaiian usa soil. Phytopathology 76(2): 221-225, 1986

Nature of suppression of pythium splendens in a pasture soil in south kohala hawaii usa. Phytopathology 73(9): 1284-1289, 1983

Soil recolonization by pythium splendens. Fitopatologia Brasileira 13(3): 198-202, 1988

Evaluation of Pythium fungicides on Easter lilies, 1981 Easter lily (Lilium longiflorum Nellie White), Pythium root rot; Pythium splendens. Fungicide and nematicide tests results American Phytopathological Society 7(37): 136, 1982

Effects of soil temperature and moisture on pythium splendens braun. Revista de Microbiologia 20(4): 477-482, 1989

Factors responsible for inhibition of pythium splendens in a suppressive soil in hawaii usa. Phytopathology 74(7): 799, 1984

Distribution of mating types and the nature of survival of Pythium splendens in soil. Soil Biology and Biochemistry 25(7): 839-842, 1993

Initial Pythium species composition and Brassicaceae seed meal type influence extent of Pythium-induced plant growth suppression in soil. Soil Biology and Biochemistry 48: 20-27, 2012

The occurrence of Pythium in the Netherlands. II. Another heterothallic species: Pythium splendens Braun. Acta bot. neerl 18(4): 489-495, 1969

Occurrence of Pythium blackleg of Geranium caused by Pythium aphanidermatum and P. splendens in Saitama Prefecture. Proceedings of the Kanto Tosan Plant Protection Society 38: 111-112, 1991

Suppression of Fusarium and Pythium pea root rot by antagonistic microorganisms. Phytoprotection 66(1): 23-29, 1985

Effects of soil moisture temperature and fungicidal applications on schefflera root rot caused by pythium splendens. Hortscience 13(3 SECT 2): 364, 1978

Field evaluation of several soil fungicides for control of Scindapsus aureus cutting decay incited by Pythium splendens. Plant Disease Reporter 56(12): 1074-1077, 1972

Interaction of nutrients and 4 anti fungal antibiotics in their effects on pythium species in vitro and in soil pythium ultimum pythium irregulare pythium rostrarum yeast. Plant and Soil 30(1): 49-61, 1969

Suppression of fusarium solani f sp pisi and pythium ultimum pea root rot by antagonistic microorganisms. Phytoprotection 66(1): 23-30, 1985