Gender differences and a new adult eukaryotic record for upper thermal tolerance in the desert moss Syntrichia caninervis

Lloyd R. Stark; D. Nicholas McLetchie; Stephen P. Roberts

doi:10.1016/j.jtherbio.2008.12.001

Gender differences and a new adult eukaryotic record for upper thermal tolerance in the desert moss Syntrichia caninervis

Lloyd R. Stark, D. Nicholas McLetchie, Stephen P. Roberts

Biology

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

1.Two competing hypotheses relating to thermostress were proposed to understand skewed sex ratios in Syntrichia caninervis, a reproductive investment hypothesis and a wildfire selection hypothesis.2.Nearly all shoots from both sexes remained viable (regenerated in culture) following exposure to 120 °C for 30 min, thus setting a new upper thermotolerance record for adult eukaryotic organisms for a minimum 30 min exposure time.3.Males regenerated faster than females, produced more biomass, and suffered less fungal attack than females. Findings support the wildfire selection hypothesis.

Original language	English
Pages (from-to)	131-137
Number of pages	7
Journal	Journal of Thermal Biology
Volume	34
Issue number	3
DOIs	https://doi.org/10.1016/j.jtherbio.2008.12.001
State	Published - Apr 2009

Bibliographical note

Funding Information:
We thank John Brinda for field assistance and conceptual discussions, Lorenzo Nichols II and Terri Nelson for assistance in the laboratory, Christina Lund for providing collecting permits on federal lands, Robin Stark for graphical assistance, Markus Mika and Jennifer Horsley for translating critical German articles, Stan Smith and Brian Hedlund for bibliographic assistance, Richard Zander for determining the correct name for Didymodon rigidulus var. gracilis, and Lynn Fenstemaker and Eric Knight for oversight assistance at the Nevada Test Site. This material is based upon work supported by the National Science Foundation under Grant nos. IOB 0416407 (DNM), IOB 0416281 (LRS), and IOS-0725030 (SPR). LRS was supported by a UNLV faculty sabbatical leave during part of this project.

Funding

We thank John Brinda for field assistance and conceptual discussions, Lorenzo Nichols II and Terri Nelson for assistance in the laboratory, Christina Lund for providing collecting permits on federal lands, Robin Stark for graphical assistance, Markus Mika and Jennifer Horsley for translating critical German articles, Stan Smith and Brian Hedlund for bibliographic assistance, Richard Zander for determining the correct name for Didymodon rigidulus var. gracilis, and Lynn Fenstemaker and Eric Knight for oversight assistance at the Nevada Test Site. This material is based upon work supported by the National Science Foundation under Grant nos. IOB 0416407 (DNM), IOB 0416281 (LRS), and IOS-0725030 (SPR). LRS was supported by a UNLV faculty sabbatical leave during part of this project.

Funders	Funder number
National Science Foundation (NSF)	IOB 0416281, IOB 0416407, IOS-0725030
University of Nevada, Las Vegas

Keywords

Bryophyte
Gametophyte
Protonema
Regeneration
Syntrichia
Thermal stress

ASJC Scopus subject areas

Biochemistry
Physiology
General Agricultural and Biological Sciences
Developmental Biology

Access to Document

10.1016/j.jtherbio.2008.12.001

Cite this

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title = "Gender differences and a new adult eukaryotic record for upper thermal tolerance in the desert moss Syntrichia caninervis",

abstract = "1.Two competing hypotheses relating to thermostress were proposed to understand skewed sex ratios in Syntrichia caninervis, a reproductive investment hypothesis and a wildfire selection hypothesis.2.Nearly all shoots from both sexes remained viable (regenerated in culture) following exposure to 120 °C for 30 min, thus setting a new upper thermotolerance record for adult eukaryotic organisms for a minimum 30 min exposure time.3.Males regenerated faster than females, produced more biomass, and suffered less fungal attack than females. Findings support the wildfire selection hypothesis.",

keywords = "Bryophyte, Gametophyte, Protonema, Regeneration, Syntrichia, Thermal stress",

author = "Stark, {Lloyd R.} and McLetchie, {D. Nicholas} and Roberts, {Stephen P.}",

note = "Funding Information: We thank John Brinda for field assistance and conceptual discussions, Lorenzo Nichols II and Terri Nelson for assistance in the laboratory, Christina Lund for providing collecting permits on federal lands, Robin Stark for graphical assistance, Markus Mika and Jennifer Horsley for translating critical German articles, Stan Smith and Brian Hedlund for bibliographic assistance, Richard Zander for determining the correct name for Didymodon rigidulus var. gracilis, and Lynn Fenstemaker and Eric Knight for oversight assistance at the Nevada Test Site. This material is based upon work supported by the National Science Foundation under Grant nos. IOB 0416407 (DNM), IOB 0416281 (LRS), and IOS-0725030 (SPR). LRS was supported by a UNLV faculty sabbatical leave during part of this project.",

year = "2009",

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doi = "10.1016/j.jtherbio.2008.12.001",

language = "English",

volume = "34",

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AU - Stark, Lloyd R.

AU - McLetchie, D. Nicholas

AU - Roberts, Stephen P.

N1 - Funding Information: We thank John Brinda for field assistance and conceptual discussions, Lorenzo Nichols II and Terri Nelson for assistance in the laboratory, Christina Lund for providing collecting permits on federal lands, Robin Stark for graphical assistance, Markus Mika and Jennifer Horsley for translating critical German articles, Stan Smith and Brian Hedlund for bibliographic assistance, Richard Zander for determining the correct name for Didymodon rigidulus var. gracilis, and Lynn Fenstemaker and Eric Knight for oversight assistance at the Nevada Test Site. This material is based upon work supported by the National Science Foundation under Grant nos. IOB 0416407 (DNM), IOB 0416281 (LRS), and IOS-0725030 (SPR). LRS was supported by a UNLV faculty sabbatical leave during part of this project.

PY - 2009/4

Y1 - 2009/4

N2 - 1.Two competing hypotheses relating to thermostress were proposed to understand skewed sex ratios in Syntrichia caninervis, a reproductive investment hypothesis and a wildfire selection hypothesis.2.Nearly all shoots from both sexes remained viable (regenerated in culture) following exposure to 120 °C for 30 min, thus setting a new upper thermotolerance record for adult eukaryotic organisms for a minimum 30 min exposure time.3.Males regenerated faster than females, produced more biomass, and suffered less fungal attack than females. Findings support the wildfire selection hypothesis.

AB - 1.Two competing hypotheses relating to thermostress were proposed to understand skewed sex ratios in Syntrichia caninervis, a reproductive investment hypothesis and a wildfire selection hypothesis.2.Nearly all shoots from both sexes remained viable (regenerated in culture) following exposure to 120 °C for 30 min, thus setting a new upper thermotolerance record for adult eukaryotic organisms for a minimum 30 min exposure time.3.Males regenerated faster than females, produced more biomass, and suffered less fungal attack than females. Findings support the wildfire selection hypothesis.

KW - Bryophyte

KW - Gametophyte

KW - Protonema

KW - Regeneration

KW - Syntrichia

KW - Thermal stress

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JO - Journal of Thermal Biology

JF - Journal of Thermal Biology

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ER -

Gender differences and a new adult eukaryotic record for upper thermal tolerance in the desert moss Syntrichia caninervis

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

Access to Document

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