Biogenic ethylene promotes seedling emergence from the sediment seed bank in an ephemeral tropical rock pool habitat

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Background and aims: Ethylene has been increasingly implicated as a regulatory mechanism in plant germination, growth, and development, and is produced from the sediments of freshwater habitats. In this paper, we analyse the production and origin of ethylene from ephemeral freshwater rock pool sediments, and explore the role of ethylene in regulating seedling emergence from the seed bank. Methods: The production of ethylene from rock pool sediments subjected to variable moisture content and antibiotic treatments was assessed through gas chromatography, and the role of ethylene in regulating seedling emergence was determined by seedling emergence assays and seed germination experiments. Results: Biogenic ethylene production from rock pool sediments occurred rapidly (3-6 h) following inundation, with the majority of seedling emergence occurring between 36 and 72 h. Inoculation of sediments with streptomycin and amphotericin B resulted in significantly reduced ethylene production (up to 60 % and 84 % respectively), and completely inhibited seedling emergence. Additionally, the exposure of dormant seeds to ethylene resulted in significantly increased seed germination percentage in five out of six rock pool species. Conclusions: Biogenic ethylene production may play an important role in regulating seed dormancy and the timing of seedling emergence from the sediment seed bank following inundation events in rock pools and other freshwater aquatic communities. © 2014 Springer International Publishing Switzerland.
Original languageEnglish
Pages (from-to)73-87
JournalPlant and Soil
Volume380
Issue number1
DOIs
Publication statusPublished - 2014

Fingerprint

rock pool
seedling emergence
seed bank
buried seeds
ethylene
rocks
ethylene production
sediments
habitat
habitats
sediment
germination
seed germination
seed
aquatic communities
amphotericin B
seed dormancy
streptomycin
Switzerland
aquatic community

Cite this

@article{69d5142ecde845079dad183f8981082d,
title = "Biogenic ethylene promotes seedling emergence from the sediment seed bank in an ephemeral tropical rock pool habitat",
abstract = "Background and aims: Ethylene has been increasingly implicated as a regulatory mechanism in plant germination, growth, and development, and is produced from the sediments of freshwater habitats. In this paper, we analyse the production and origin of ethylene from ephemeral freshwater rock pool sediments, and explore the role of ethylene in regulating seedling emergence from the seed bank. Methods: The production of ethylene from rock pool sediments subjected to variable moisture content and antibiotic treatments was assessed through gas chromatography, and the role of ethylene in regulating seedling emergence was determined by seedling emergence assays and seed germination experiments. Results: Biogenic ethylene production from rock pool sediments occurred rapidly (3-6 h) following inundation, with the majority of seedling emergence occurring between 36 and 72 h. Inoculation of sediments with streptomycin and amphotericin B resulted in significantly reduced ethylene production (up to 60 {\%} and 84 {\%} respectively), and completely inhibited seedling emergence. Additionally, the exposure of dormant seeds to ethylene resulted in significantly increased seed germination percentage in five out of six rock pool species. Conclusions: Biogenic ethylene production may play an important role in regulating seed dormancy and the timing of seedling emergence from the sediment seed bank following inundation events in rock pools and other freshwater aquatic communities. {\circledC} 2014 Springer International Publishing Switzerland.",
author = "Adam Cross and Greg Cawthray and David Merritt and Shane Turner and Michael Renton and Kingsley Dixon",
year = "2014",
doi = "10.1007/s11104-014-2083-z",
language = "English",
volume = "380",
pages = "73--87",
journal = "Plant and Soil: An International Journal on Plant-Soil Relationships",
issn = "0032-079X",
publisher = "Springer",
number = "1",

}

TY - JOUR

T1 - Biogenic ethylene promotes seedling emergence from the sediment seed bank in an ephemeral tropical rock pool habitat

AU - Cross, Adam

AU - Cawthray, Greg

AU - Merritt, David

AU - Turner, Shane

AU - Renton, Michael

AU - Dixon, Kingsley

PY - 2014

Y1 - 2014

N2 - Background and aims: Ethylene has been increasingly implicated as a regulatory mechanism in plant germination, growth, and development, and is produced from the sediments of freshwater habitats. In this paper, we analyse the production and origin of ethylene from ephemeral freshwater rock pool sediments, and explore the role of ethylene in regulating seedling emergence from the seed bank. Methods: The production of ethylene from rock pool sediments subjected to variable moisture content and antibiotic treatments was assessed through gas chromatography, and the role of ethylene in regulating seedling emergence was determined by seedling emergence assays and seed germination experiments. Results: Biogenic ethylene production from rock pool sediments occurred rapidly (3-6 h) following inundation, with the majority of seedling emergence occurring between 36 and 72 h. Inoculation of sediments with streptomycin and amphotericin B resulted in significantly reduced ethylene production (up to 60 % and 84 % respectively), and completely inhibited seedling emergence. Additionally, the exposure of dormant seeds to ethylene resulted in significantly increased seed germination percentage in five out of six rock pool species. Conclusions: Biogenic ethylene production may play an important role in regulating seed dormancy and the timing of seedling emergence from the sediment seed bank following inundation events in rock pools and other freshwater aquatic communities. © 2014 Springer International Publishing Switzerland.

AB - Background and aims: Ethylene has been increasingly implicated as a regulatory mechanism in plant germination, growth, and development, and is produced from the sediments of freshwater habitats. In this paper, we analyse the production and origin of ethylene from ephemeral freshwater rock pool sediments, and explore the role of ethylene in regulating seedling emergence from the seed bank. Methods: The production of ethylene from rock pool sediments subjected to variable moisture content and antibiotic treatments was assessed through gas chromatography, and the role of ethylene in regulating seedling emergence was determined by seedling emergence assays and seed germination experiments. Results: Biogenic ethylene production from rock pool sediments occurred rapidly (3-6 h) following inundation, with the majority of seedling emergence occurring between 36 and 72 h. Inoculation of sediments with streptomycin and amphotericin B resulted in significantly reduced ethylene production (up to 60 % and 84 % respectively), and completely inhibited seedling emergence. Additionally, the exposure of dormant seeds to ethylene resulted in significantly increased seed germination percentage in five out of six rock pool species. Conclusions: Biogenic ethylene production may play an important role in regulating seed dormancy and the timing of seedling emergence from the sediment seed bank following inundation events in rock pools and other freshwater aquatic communities. © 2014 Springer International Publishing Switzerland.

U2 - 10.1007/s11104-014-2083-z

DO - 10.1007/s11104-014-2083-z

M3 - Article

VL - 380

SP - 73

EP - 87

JO - Plant and Soil: An International Journal on Plant-Soil Relationships

JF - Plant and Soil: An International Journal on Plant-Soil Relationships

SN - 0032-079X

IS - 1

ER -