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УДК 582.282.31 : 581.96 (560)
©E.Hьseyin,F. Selзuk,K. Ekici
A NEW SPECIES, HELISCUS ATILAE FROM TURKEY
ХУСЕЙИН Э., СЕЛЬЧУК Ф., ЭКИДЖИ К. НОВЫЙ ВИД HELISCUS ATILAE ИЗ ТУРЦИИ
Ahi Evran University,Kэrюehir,Turkey
Университет Ахи Эвран,Кыршехир,Турция
elsadhuseyin@hotmail.com
A fungus belonging to the moniliaceous hyphomycete genus Heliscus was found on rotting twigs of
Rhamnus petiolaris in Kэrюehir Province of Turkey. It is described as a new species, Heliscus atilae, illust-
rated and compared with allied species.
Key words: anamorphic fungi, Anatolian peninsula, moniliaceous hyphomycetes.
Обнаружен новый вид гифального гриба рода Heliscus на гниющих веточках Rhamnus petiolaris
в провинции Кыршехир Турции. Вид Heliscus atilae подробно описан и иллюстрирован.
Ключевые слова: анаморфные грибы, Анатолийский полуостров, гифомицеты.
Turkey has a very diverse flora, and higher plants of
Turkey have been well studied, but the mycobiota has not
been extensively investigated and most of the studies deal
with macromycetes generally agaricoid fungi. However,
during the past two decades research on micromycetes (in-
cluding hyphomycetes) in the country has intensified
(Hьseyinov, Selзuk, 1999; Braun et al., 2000; Hьseyin,
Selзuk, 2001; Hьseyin et al., 2003, 2005; Mel’nik et al.,
2004; Selзuk et al., 2009, 2014; Selзuk, Ekici, 2014; Sel-
зuk, Hьseyin, 2014).
A new hyphomycete species was found during a trip to
Kervansaray Mountain, Kэrюehir Province, Central Anato-
lian Peninsula. This mountain lies in the Irano-Turanian
phytogeographic region (Hamzaoрlu, 1996). The fungus
belongs to the genus Heliscus had been described in 1880
by Saccardo (Saccardo, 1880a).
Materials and methods
Fresh material for this paper was collected during my-
cological excursion from the Kervansaray mountain in
Boztepe district, Kэrюehir Province of Turkey in 2012. The
collections were examined in distilled water and Leica DM
3000 (Axio imager 2 equipped with Nomarski differential
interference contrast optics) microscope was used for mic-
rophotographs. Identification of the genus Heliscus Sacc.
was carried out through comparison with current taxono-
mical works on hyphomycetous fungi under consideration
(Carmichael et al., 1980; Barnett, Hunter, 1998; Seifert et
al., 2011). The current names of taxa are given according
to Index Fungorum (2016). The specimen examined is de-
posited at the Ahi Evran University, Arts and Sciences Fa-
culty, Department of Biology.
Results
The species described as a new, differs from all known
Heliscus species by 3—4(5)-septate conidia 20—25 %5—
5.5(6) µm, with 1(2)-septate, cylindrical or conical, roun-
ded at the apex, 5—8 %3—3.5 µm two arms. The follo-
wing description is based on fungal material found in Cen-
tral Anatolia (Turkey) on rotting twigs of Rhamnus petio-
laris Boiss. (Rhamnaceae) in 2012.
Heliscus atilae E. Hьseyin, F. Selзuk et K. Ekici sp.
nov. (MB 815304)
Etymology. Atila, in honour of the grandson of the
first author.
Holotype. Turkey, Kэrюehir Province, Boztepe dist-
rict, mountain sparse forest, on rotting twigs of Rhamnus
petiolaris Boiss. (Rhamnaceae), 1320 m a. s. l., 39°13ґ30ґґ N,
34°13ґ41ґґ E. Coll. E. Hьseyin 02 12 2012 (EH 0196).
Description.Colonies scant, loose, whitish. Myce-
lium superficial, branched, septate. Conidiophores sparin-
gly branched, hyaline, bearing one or more phialides,
100—140 %2.5—3.5 µm. Conidiogenous cells hyaline,
phialidic lageniform, 10—12 %1.5—2 µm. Conidia
straight or slightly curved, slimy, solitary, hyaline, cylindrical
narrowed at the base, with 3—4(5) distinct and 1—2 indis-
МИКОЛОГИЯ И ФИТОПАТОЛОГИЯ
Том 51 2017 Вып. 1
tinct septa, not constricted, 20—25 %5—5.5(6) µm, with
two arms on the top. Arms initially aseptate, then one or
both arms 1-septate, rarely only one arm 2-septate, cylind-
rical or conical, rounded at the apex, 5—8 %3—3.5 µm.
Span of the arm is 10—15(17) µm (see Figure, a—l).
Discussion
The genus Heliscus comprises 7 species which colo-
nize mainly decaying and rotten leaves, wood or bark of
different plants. Within these species, 4 ones were transfer-
red to other genera (Index Fungorum, 2016). Heliscus is
distinguished by submerged, branched, septate mycelium,
simple or sparingly branched hyaline conidiophores (phia-
lides), hyaline conidiogenous cells, hyaline, unicellular or
septate with 2—3 short arms, slimy or dry, schizogenous
conidia (Saccardo, 1880a; Ingold, 1975; Arx, 1981; Mat-
sushima, 1985; Pelбez et al., 1996; Barnett, Hunter, 1998;
Seifert et al., 2011).
The type species of Heliscus is H. lugdunensis Sacc. et
Therry. It had been described by Saccardo and Therry in
1880 from Italia and France (Saccardo, 1880b). Then
Webster (1959) described its teleomorphic stage as Nectria
lugdunensis J. Webster. Later Lombard and Crous (Lom-
bard et al., 2014) transferred this species into Neonectria
genus as N. lugdunensis (Sacc. et Terry) L. Lombard et
Crous. According to Index Fungorum (2016), the current
name of Heliscus lugdunensis is Neonectria lugdunensis
on teleomorphic stage. In addition to the type species He-
liscus lugdunensis, it has been known only three species of
the Heliscus genus so far (Seifert et al., 2011; Index Fun-
A new species, Heliscus atilae from Turkey 27
General view on conidia of Heliscus atilae:a— 4-septate conidium with one septated arm, b— conidium with two aseptate arms,
c— 3-septate conidium with rudimentary arms, d— 3(4)-septate conidium with rudimentary arms, e— 4-septate conidium with
developed arms, f— 4-septate conidium with unseptate arms, g— conidium with rudimentary septa on the arms, h— 4-septate
conidium with rudimentary arms, i— 4-septate conidium with one by one septa on each arm, j— 5-septate conidium, k— 4-septate
conidium with developed arms separated by septa, l— the same from opposite side. Scale bar—8µm.
gorum, 2016) — H. submersus H. J. Huds. (Hudson, 1961;
Marvanovбet al., 2003), H. tentaculus Umphlett (1957,
1959) and H. versaillensis G. Arnaud (1952).
H. atilae it is not close to any of them. The conidia of
H. lugdunensis are large (35—40 %7 µm) with 1—3 septa
and 3 arms. H. submersus has conidia 19—40 %2.5—
4 µm bearing 1 septa and 2 arms. The conidia of H.tenta-
culus are 45—71 %1.5—2 µm without septa and with
3 arms. Those of H.versaillensis are 30 %20—25 µm
with 2 arms. The diagnostics characteristics of species dis-
cussed above are presented on Table.
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Received 10 12 2015
28 E. Hьseyin, F. Selзuk, K. Ekici
Taxonomically significant characters of Heliscus conidiogenous apparatus highlighting a new species, H. atilae
Species Conidiophores, µm Conidia, µm Number
of septa
per conidium Arms, µm Arms
number
Number
of septa
per arm
Heliscus atilae 100—140 %2.5—3.5 20—25 %5—5.5(6) 3—4(5) 5—8 %3—3.5 2 1(2)
H. lugdunensis 50—60 %2.5 35—40 %7 1—3 3
H. submersus 50—320 %2—4 19—40 %2.5—4 1 3—8 long 2 1
H. tentaculus 38—100 %3—4 45—71 %1.5—2 33—43 long 3
H. versaillensis 200—400 long 30 %20—25 2
