DTIC ADA040367: Effects of Several Wetting Agents pdf

DTIC ADA040367: Effects of Several Wetting Agents

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Asexual spores of Auxarthron reticulatum were suspended in distilled water, physiological saline and a 0.5% concentration of several wetting agents and mixed. Spore viability was completely inhibited by Roccal and markedly reduced by Nalquot and dioctyl sodium sulfosuccinate. Spores suspended in sodium lauryl sulfate and triethanolamine oleate exhibited viabilities greater than those of spores suspended in the water and saline. Increased viability (stimulation) was demonstrated by spores suspended in Tergitol 4 (approximately 7 x greater). Asexual spores of several species were suspended in 0.5%-15% concentrations of Tergitol 4. A reticulatum exhibited little reduction of viability at 0.5%, 1.0%, 1.5% and 5.0%. Some possible stimulation was observed at the 2.0% level; viability was reduced approximately tenfold at 12% and 15%. Malbranchea sp. spore viability was higher in all concentrations of Tergitol 4 than in distilled water and physiological saline, with greatest stimulatory effect exhibited at 12% and 15% levels.

Coccidioides immitis spore viability was reduced approximately 80% at the 1.0% and 1.5% levels and complete inhibition occurred at all concentrations above 5%. Use of appropriate levels of Tergitol 4 as a stimulatory additive is suggested

• Creator/s: Defense Technical Information Center
• Date: 4/1/1970
• Year: 1970
• Book Topics/Themes: DTIC Archive, Orr, G F, DESERET TEST CENTER FORT DOUGLAS UTAH, *SPORES, *WETTING, STIMULATION(PHYSIOLOGY), VIABILITY, FUNGI, PLANT GROWTH, LABORATORY PROCEDURES, CONCENTRATION(CHEMISTRY), COCCIDIOIDES IMMITIS

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