title: Dominance of Paris-type morphology on mycothallus of Lunularia cruciata colonised by Glomus proliferum.
abstract: Microscopic evidence confirms that L. cruciata hosting G. proliferum shows major anatomical traits (arbuscules, coils, arbusculate coils and vesicles) generally associated arbuscular mycorrhizal roots and the anatomical morphology of intra-thalli mycelium is predominantly of the Paris-type. Colonised L. cruciata showed a reduction of biomass when compared with axenic plants suggesting a drain of resources towards the fungus and depletion of nutrients required for optimum plant growth. The behaviour of mycothalli regarding available KH2PO4 indicates that the nutritional stress threshold for phosphorus (P) is above the residual amount of P already present in Phytagel(TM) and in plant inoculum. These raise the possibility that in certain circumstances the relationship between L. cruciata and G. proliferum be parasitic rather than symbiotic and open the door for future studies to ascertain the nature of liverwort-AM fungi relationships.
authors.affiliation: Centre of Cellular Biology, Department of Biology , University of Aveiro, 3810-193, Aveiro , Portugal.
authors.forename: Henrique M A C
authors.initials: HM
authors.lastname: Fonseca
authors.forename: Joana I L
authors.initials: JI
authors.lastname: Ferreira
authors.forename: Ricardo L L
authors.initials: RL
authors.lastname: Berbara
authors.forename: Natalia P
authors.initials: NP
authors.lastname: Zatorre
keywords: Arbuscular mycorrhizal fungi; Arum-type; Liverwort; Monoxenic cultures; Phosphorus
references.citation: Mycorrhiza. 2007 Jul;17(5):375-393
references.pmid: 17476535
references.citation: New Phytol. 1990 Jul;115(3):495-501
references.pmid: 33874272
references.citation: Am J Bot. 2007 Nov;94(11):1756-77
references.pmid: 21636371
references.citation: Mycorrhiza. 2006 Oct;16(7):503-508
references.pmid: 16896799
references.citation: Philos Trans R Soc Lond B Biol Sci. 2000 Jun 29;355(1398):815-30; discussion 830-1
references.pmid: 10905611
references.citation: New Phytol. 2004 Sep;163(3):617-627
references.pmid: 33873744
references.citation: Plant Physiol. 2000 Nov;124(3):949-58
references.pmid: 11080273
references.citation: New Phytol. 2005 Aug;167(2):330-4
references.pmid: 15998388
references.citation: New Phytol. 2005 Feb;165(2):567-79
references.pmid: 15720667
references.citation: New Phytol. 2002 Jun;154(3):809-819
references.pmid: 33873457
references.citation: New Phytol. 2004 Jul;163(1):187-200
references.pmid: 33873792
references.citation: New Phytol. 1997 Nov;137(3):373-388
references.pmid: 33863081