Functional distinction of hyphal compartments

Abstract Hyphae of higher fungi grow at their tips and are compartmentalized by porous septa that enable inter-compartmental cytoplasmic streaming. Woronin bodies discontinue cytoplasmic streaming by plugging the septal pores. Here, it was assessed whether apical compartments of Aspergillus niger su...

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Autores principales:	Martin Tegelaar, Han A. B. Wösten
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/523469189d8048f4add798a00856af39
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spelling	oai:doaj.org-article:523469189d8048f4add798a00856af392021-12-02T11:53:01ZFunctional distinction of hyphal compartments10.1038/s41598-017-06422-62045-2322https://doaj.org/article/523469189d8048f4add798a00856af392017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06422-6https://doaj.org/toc/2045-2322Abstract Hyphae of higher fungi grow at their tips and are compartmentalized by porous septa that enable inter-compartmental cytoplasmic streaming. Woronin bodies discontinue cytoplasmic streaming by plugging the septal pores. Here, it was assessed whether apical compartments of Aspergillus niger sustain their own growth or whether their growth depends on subapical compartments. Hyphae of wildtype and the ΔhexA strain, lacking Woronin bodies, had a similar morphology and growth rate. A total of 58% and 17% of the hyphae continued growing, respectively, after dissecting the 2nd compartment. Extension rate of the apical compartments that continued growing was not affected, even when the carbon or nitrogen source was limiting. Thus, apical compartments are self-sustaining in growth. It was also shown that the first 8 subapical compartments of the wildtype, but not of the ΔhexA strain, function as a backup system for growth by forming new branches when their apical neighbouring compartment has been damaged. This backup system is pivotal in nature because of the life style of fungi to continuously explore their surrounding substrate that may prove hostile.Martin TegelaarHan A. B. WöstenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Martin Tegelaar Han A. B. Wösten Functional distinction of hyphal compartments
description	Abstract Hyphae of higher fungi grow at their tips and are compartmentalized by porous septa that enable inter-compartmental cytoplasmic streaming. Woronin bodies discontinue cytoplasmic streaming by plugging the septal pores. Here, it was assessed whether apical compartments of Aspergillus niger sustain their own growth or whether their growth depends on subapical compartments. Hyphae of wildtype and the ΔhexA strain, lacking Woronin bodies, had a similar morphology and growth rate. A total of 58% and 17% of the hyphae continued growing, respectively, after dissecting the 2nd compartment. Extension rate of the apical compartments that continued growing was not affected, even when the carbon or nitrogen source was limiting. Thus, apical compartments are self-sustaining in growth. It was also shown that the first 8 subapical compartments of the wildtype, but not of the ΔhexA strain, function as a backup system for growth by forming new branches when their apical neighbouring compartment has been damaged. This backup system is pivotal in nature because of the life style of fungi to continuously explore their surrounding substrate that may prove hostile.
format	article
author	Martin Tegelaar Han A. B. Wösten
author_facet	Martin Tegelaar Han A. B. Wösten
author_sort	Martin Tegelaar
title	Functional distinction of hyphal compartments
title_short	Functional distinction of hyphal compartments
title_full	Functional distinction of hyphal compartments
title_fullStr	Functional distinction of hyphal compartments
title_full_unstemmed	Functional distinction of hyphal compartments
title_sort	functional distinction of hyphal compartments
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/523469189d8048f4add798a00856af39
work_keys_str_mv	AT martintegelaar functionaldistinctionofhyphalcompartments AT hanabwosten functionaldistinctionofhyphalcompartments
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Functional distinction of hyphal compartments

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