TY - JOUR
TI - A New Amoeba with Protosteloid Fruiting: Luapeleamoeba hula n. g. n. sp. (Acanthamoebidae, Centramoebida, Amoebozoa)
AU - Shadwick, Lora L.
AU - Brown, Matthew W.
AU - Tice, Alexander K.
AU - Spiegel, Frederick W.
TI - A New Amoeba with Protosteloid Fruiting: Luapeleamoeba hula n. g. n. sp. (Acanthamoebidae, Centramoebida, Amoebozoa)
AB - We describe a new protosteloid amoeba, Luapeleamoeba hula. Protosteloid amoebae, sometimes called protostelids, are sporocarpic amoebae that make fruiting bodies that consist of a stalk and one to a few spores. This new taxon was cultured from dead leaves of mamaki (Pipturus albidus) from the Manuka Natural Area Reserve, Hawai`i, USA. Light microscopic examination showed that this amoeba has a short, rigid stalk with a small apophysis and a spore that changes shape continuously until it is shed and crawls away from the stalk. In addition, this amoeba was initially observed to maintain a diurnal rhythm in which fruiting body formation occurred primarily in the late afternoon. This new species is unique in both its amoebal and fruiting body morphology. Spore deciduousness appears to be a result of shape changes in the spore itself. This is the fourth species of protosteloid amoeba described with a clearly described diurnal rhythm. In addition, previous molecular phylogenetic analyses suggested that this new species has SSU rRNA gene sequences that clearly separate it from any other protosteloid amoebae and place it as sister to Protacanthamoeba bohemica among the Acanthamoebidae family in Centramoebida of Amoebozoa. Because this new species’ amoebae do not fit into any of the centramoebid genera, we have proposed a new genus—Luapeleamoeba.
VL - 2016
IS - Volume 55, Issue 3
PY - 2016
SN - 0065-1583
C1 - 1689-0027
SP - 123
EP - 134
DO - 10.4467/16890027AP.16.012.5744
UR - https://ejournals.eu/en/journal/acta-protozoologica/article/a-new-amoeba-with-protosteloid-fruiting-luapeleamoeba-hula-n-g-n-sp-acanthamoebidae-centramoebida-amoebozoa
KW - free-living amoeba
KW - protostelid
KW - centramoebid
KW - acanthamoebid
KW - stalk
KW - taxonomy
KW - terrestrial
KW - Hawaii