The effect of storage environment on the longevity of conidia of beauveria bassiana

Tran D. Hong, Jane Gunn, Richard H. Ellis, Nina Ellen Jenkins, David Moore

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

The effect of air-dry storage environment on the longevity of conidia from seven isolates of Beauveria bassiana produced at different times and locations was determined by estimating the parameters of a viability equation. Conidia were stored hermetically at six to 11 moisture contents between 2.3 and 32.0% with one (50±0.5 °C) to five constant temperatures (10, 20, 30, 40 and 50±0.5 °) for various periods up to 372 d and then tested for viability. All isolates behaved similarly (P > 0.25) in terms of the relative effect of moisture content (CW) and temperature (CH and CQ) on conidial longevity; common values were CW = 3.05 (SE = 0.07), CH = 0.0293 (SE = 0.0078), and CQ = 0.00081 (SE = 0.00011). Estimates of the low-moisture-content limit to the negative logarithmic relation between conidial moisture content and longevity were 4.6 and 5.0% at 50° and 40°, respectively, for isolate 198-1140ss, and 5.2 and 5.1% moisture content, respectively, for isolate 197-1111. Absolute longevity (KE) varied considerably (P < 0.005) among isolates, even within an isolate when conidia were produced at different locations. Among the eight samples of seven isolates, two cohorts were identified with respect to KE (P < 0.005): conidia of three isolates which were produced at Ascot had a common estimate of KE of 6.696 (SE = 0.170), whereas those produced at Nairobi or Carolina provided a lower estimate (6.203, SE = 0.029). This difference in KE means that for any given viability period in any given environment, the conidia produced in Ascot provided about three times the longevity of the other samples.

Original languageEnglish (US)
Pages (from-to)597-602
Number of pages6
JournalMycological Research
Volume105
Issue number5
DOIs
StatePublished - Jan 1 2001

Fingerprint

Beauveria
Fungal Spores
Beauveria bassiana
conidia
moisture content
water content
viability
Temperature
temperature
Air
effect
sampling
air

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Plant Science

Cite this

Hong, Tran D. ; Gunn, Jane ; Ellis, Richard H. ; Jenkins, Nina Ellen ; Moore, David. / The effect of storage environment on the longevity of conidia of beauveria bassiana. In: Mycological Research. 2001 ; Vol. 105, No. 5. pp. 597-602.
@article{bd0d3a3fc1e845518519341e20f5de8c,
title = "The effect of storage environment on the longevity of conidia of beauveria bassiana",
abstract = "The effect of air-dry storage environment on the longevity of conidia from seven isolates of Beauveria bassiana produced at different times and locations was determined by estimating the parameters of a viability equation. Conidia were stored hermetically at six to 11 moisture contents between 2.3 and 32.0{\%} with one (50±0.5 °C) to five constant temperatures (10, 20, 30, 40 and 50±0.5 °) for various periods up to 372 d and then tested for viability. All isolates behaved similarly (P > 0.25) in terms of the relative effect of moisture content (CW) and temperature (CH and CQ) on conidial longevity; common values were CW = 3.05 (SE = 0.07), CH = 0.0293 (SE = 0.0078), and CQ = 0.00081 (SE = 0.00011). Estimates of the low-moisture-content limit to the negative logarithmic relation between conidial moisture content and longevity were 4.6 and 5.0{\%} at 50° and 40°, respectively, for isolate 198-1140ss, and 5.2 and 5.1{\%} moisture content, respectively, for isolate 197-1111. Absolute longevity (KE) varied considerably (P < 0.005) among isolates, even within an isolate when conidia were produced at different locations. Among the eight samples of seven isolates, two cohorts were identified with respect to KE (P < 0.005): conidia of three isolates which were produced at Ascot had a common estimate of KE of 6.696 (SE = 0.170), whereas those produced at Nairobi or Carolina provided a lower estimate (6.203, SE = 0.029). This difference in KE means that for any given viability period in any given environment, the conidia produced in Ascot provided about three times the longevity of the other samples.",
author = "Hong, {Tran D.} and Jane Gunn and Ellis, {Richard H.} and Jenkins, {Nina Ellen} and David Moore",
year = "2001",
month = "1",
day = "1",
doi = "10.1017/S0953756201004026",
language = "English (US)",
volume = "105",
pages = "597--602",
journal = "Fungal Biology",
issn = "1878-6146",
publisher = "Elsevier",
number = "5",

}

The effect of storage environment on the longevity of conidia of beauveria bassiana. / Hong, Tran D.; Gunn, Jane; Ellis, Richard H.; Jenkins, Nina Ellen; Moore, David.

In: Mycological Research, Vol. 105, No. 5, 01.01.2001, p. 597-602.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The effect of storage environment on the longevity of conidia of beauveria bassiana

AU - Hong, Tran D.

AU - Gunn, Jane

AU - Ellis, Richard H.

AU - Jenkins, Nina Ellen

AU - Moore, David

PY - 2001/1/1

Y1 - 2001/1/1

N2 - The effect of air-dry storage environment on the longevity of conidia from seven isolates of Beauveria bassiana produced at different times and locations was determined by estimating the parameters of a viability equation. Conidia were stored hermetically at six to 11 moisture contents between 2.3 and 32.0% with one (50±0.5 °C) to five constant temperatures (10, 20, 30, 40 and 50±0.5 °) for various periods up to 372 d and then tested for viability. All isolates behaved similarly (P > 0.25) in terms of the relative effect of moisture content (CW) and temperature (CH and CQ) on conidial longevity; common values were CW = 3.05 (SE = 0.07), CH = 0.0293 (SE = 0.0078), and CQ = 0.00081 (SE = 0.00011). Estimates of the low-moisture-content limit to the negative logarithmic relation between conidial moisture content and longevity were 4.6 and 5.0% at 50° and 40°, respectively, for isolate 198-1140ss, and 5.2 and 5.1% moisture content, respectively, for isolate 197-1111. Absolute longevity (KE) varied considerably (P < 0.005) among isolates, even within an isolate when conidia were produced at different locations. Among the eight samples of seven isolates, two cohorts were identified with respect to KE (P < 0.005): conidia of three isolates which were produced at Ascot had a common estimate of KE of 6.696 (SE = 0.170), whereas those produced at Nairobi or Carolina provided a lower estimate (6.203, SE = 0.029). This difference in KE means that for any given viability period in any given environment, the conidia produced in Ascot provided about three times the longevity of the other samples.

AB - The effect of air-dry storage environment on the longevity of conidia from seven isolates of Beauveria bassiana produced at different times and locations was determined by estimating the parameters of a viability equation. Conidia were stored hermetically at six to 11 moisture contents between 2.3 and 32.0% with one (50±0.5 °C) to five constant temperatures (10, 20, 30, 40 and 50±0.5 °) for various periods up to 372 d and then tested for viability. All isolates behaved similarly (P > 0.25) in terms of the relative effect of moisture content (CW) and temperature (CH and CQ) on conidial longevity; common values were CW = 3.05 (SE = 0.07), CH = 0.0293 (SE = 0.0078), and CQ = 0.00081 (SE = 0.00011). Estimates of the low-moisture-content limit to the negative logarithmic relation between conidial moisture content and longevity were 4.6 and 5.0% at 50° and 40°, respectively, for isolate 198-1140ss, and 5.2 and 5.1% moisture content, respectively, for isolate 197-1111. Absolute longevity (KE) varied considerably (P < 0.005) among isolates, even within an isolate when conidia were produced at different locations. Among the eight samples of seven isolates, two cohorts were identified with respect to KE (P < 0.005): conidia of three isolates which were produced at Ascot had a common estimate of KE of 6.696 (SE = 0.170), whereas those produced at Nairobi or Carolina provided a lower estimate (6.203, SE = 0.029). This difference in KE means that for any given viability period in any given environment, the conidia produced in Ascot provided about three times the longevity of the other samples.

UR - http://www.scopus.com/inward/record.url?scp=0034915343&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034915343&partnerID=8YFLogxK

U2 - 10.1017/S0953756201004026

DO - 10.1017/S0953756201004026

M3 - Article

VL - 105

SP - 597

EP - 602

JO - Fungal Biology

JF - Fungal Biology

SN - 1878-6146

IS - 5

ER -