Hyphal healing mechanism in the arbuscular mycorrhizal fungi Scutellospora reticulata and Glomus clarum differs in response to severe physical stress

The hyphal healing mechanism (HHM) has been shown to differ between Gigasporaceae and Glomeraceae. However, this process has not been considered under (severe) physical stress conditions. Scutellospora reticulata and Glomus clarum strains were cultured monoxenically. The impact of long distance sepa...

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Published in:FEMS microbiology letters 2007-03, Vol.268 (1), p.120-125
Main Authors: Providencia, Ivan Enrique de la, Fernández, Félix, Declerck, Stéphane
Format: Article
Language:English
Subjects:
Action of physical and chemical agents
arbuscular mycorrhizal (AM) fungi
Arbuscular mycorrhizas
Biological and medical sciences
Extremities
Fundamental and applied biological sciences. Psychology
Fungi
Glomus clarum
Healing
Heat-Shock Response
Hyphae
Hyphae - physiology
Hyphae - ultrastructure
hyphal healing mechanism (HHM)
hyphal recovery
Hyphal tips
independent growth
Microbiology
monoxenic culture
Mycology
Mycorrhizae - classification
Mycorrhizae - growth & development
Mycorrhizae - physiology
Mycorrhizae - ultrastructure
physical injury
Physical stress
Scutellospora
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description The hyphal healing mechanism (HHM) has been shown to differ between Gigasporaceae and Glomeraceae. However, this process has not been considered under (severe) physical stress conditions. Scutellospora reticulata and Glomus clarum strains were cultured monoxenically. The impact of long distance separating cut extremities of hyphae and of multiple injuries within hyphae on the HHM was monitored. For long distances (>5000 μm) separating cut extremities, hyphae healing was observed in half the cases in S. reticulata and was absent in G. clarum. For multiple-injured hyphae, the HHM was always oriented towards the complete recovery of hyphae integrity in S. reticulata, while in G. clarum, the growing hyphal tips (GHTs) could indifferently reconnect cut sections, by-pass cut sections or develop into the environment. Hyphae behaviour under severe physical stress clearly differentiated S. reticulata from G. clarum, suggesting that both fungi have developed different strategies for colony growth to survive under adverse conditions.
doi_str_mv 10.1111/j.1574-6968.2006.00572.x
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Psychology ; Fungi ; Glomus clarum ; Healing ; Heat-Shock Response ; Hyphae ; Hyphae - physiology ; Hyphae - ultrastructure ; hyphal healing mechanism (HHM) ; hyphal recovery ; Hyphal tips ; independent growth ; Microbiology ; monoxenic culture ; Mycology ; Mycorrhizae - classification ; Mycorrhizae - growth &amp; development ; Mycorrhizae - physiology ; Mycorrhizae - ultrastructure ; physical injury ; Physical stress ; Scutellospora</subject><ispartof>FEMS microbiology letters, 2007-03, Vol.268 (1), p.120-125</ispartof><rights>2007 Federation of European Microbiological Societies 2007</rights><rights>2007 INIST-CNRS</rights><rights>2007 Federation of European Microbiological Societies</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5232-17f8f1a9a6331350e7d0fc3c75d12a4e6cf2b05ca22ee2f17e460daa1d10ec833</citedby><cites>FETCH-LOGICAL-c5232-17f8f1a9a6331350e7d0fc3c75d12a4e6cf2b05ca22ee2f17e460daa1d10ec833</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=18518190$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17263854$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Providencia, Ivan Enrique de la</creatorcontrib><creatorcontrib>Fernández, Félix</creatorcontrib><creatorcontrib>Declerck, Stéphane</creatorcontrib><title>Hyphal healing mechanism in the arbuscular mycorrhizal fungi Scutellospora reticulata and Glomus clarum differs in response to severe physical stress</title><title>FEMS microbiology letters</title><addtitle>FEMS Microbiol Lett</addtitle><description>The hyphal healing mechanism (HHM) has been shown to differ between Gigasporaceae and Glomeraceae. However, this process has not been considered under (severe) physical stress conditions. Scutellospora reticulata and Glomus clarum strains were cultured monoxenically. The impact of long distance separating cut extremities of hyphae and of multiple injuries within hyphae on the HHM was monitored. For long distances (&gt;5000 μm) separating cut extremities, hyphae healing was observed in half the cases in S. reticulata and was absent in G. clarum. For multiple-injured hyphae, the HHM was always oriented towards the complete recovery of hyphae integrity in S. reticulata, while in G. clarum, the growing hyphal tips (GHTs) could indifferently reconnect cut sections, by-pass cut sections or develop into the environment. 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However, this process has not been considered under (severe) physical stress conditions. Scutellospora reticulata and Glomus clarum strains were cultured monoxenically. The impact of long distance separating cut extremities of hyphae and of multiple injuries within hyphae on the HHM was monitored. For long distances (&gt;5000 μm) separating cut extremities, hyphae healing was observed in half the cases in S. reticulata and was absent in G. clarum. For multiple-injured hyphae, the HHM was always oriented towards the complete recovery of hyphae integrity in S. reticulata, while in G. clarum, the growing hyphal tips (GHTs) could indifferently reconnect cut sections, by-pass cut sections or develop into the environment. Hyphae behaviour under severe physical stress clearly differentiated S. reticulata from G. clarum, suggesting that both fungi have developed different strategies for colony growth to survive under adverse conditions.</abstract><cop>Oxford, UK</cop><pub>Oxford, UK : Blackwell Publishing Ltd</pub><pmid>17263854</pmid><doi>10.1111/j.1574-6968.2006.00572.x</doi><tpages>6</tpages></addata></record>
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source Oxford Journals Online
subjects Action of physical and chemical agents
arbuscular mycorrhizal (AM) fungi
Arbuscular mycorrhizas
Biological and medical sciences
Extremities
Fundamental and applied biological sciences. Psychology
Fungi
Glomus clarum
Healing
Heat-Shock Response
Hyphae
Hyphae - physiology
Hyphae - ultrastructure
hyphal healing mechanism (HHM)
hyphal recovery
Hyphal tips
independent growth
Microbiology
monoxenic culture
Mycology
Mycorrhizae - classification
Mycorrhizae - growth & development
Mycorrhizae - physiology
Mycorrhizae - ultrastructure
physical injury
Physical stress
Scutellospora
title Hyphal healing mechanism in the arbuscular mycorrhizal fungi Scutellospora reticulata and Glomus clarum differs in response to severe physical stress
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