Abstract
Some hydra strains belonging to the vulgaris group show a symbiotic relationship with green algae Chlorococcum sp. The symbiotic green algae can escape from the host polyps and can form swimming zoospores (which have two flagella) in culture solution. We observed that co-culture with the symbiotic polyps caused horizontal transmission of the symbionts into some non-symbiotic hydra strains that have no symbionts in nature and that belong not only to the vulgaris group but also to other hydra species groups. Although most of the horizontal transmission has ended in transient symbioses, a newly formed symbiosis between the symbiotic Chlorococcum sp. and strain 105 of Hydra vulgaris (Hydra magnipapillata) has been sustained for more than five years and has caused morphological and behavioral changes in the host polyps. We named this strain 105G. The asexual proliferation rate by budding increased under light conditions, although the feeding activity decreased and the polyp size was reduced in strain 105G. This new symbiosis between Chlorococcum sp. and strain 105G of H. vulgaris provides us with an intriguing research system for investigating the origin of symbiosis.
| Original language | English |
|---|---|
| Pages (from-to) | 113-122. |
| Journal | Archives of American Art Journal |
| Volume | 235 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jan 1 2018 |
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All Science Journal Classification (ASJC) codes
- Visual Arts and Performing Arts
- Museology
Cite this
Horizontal transmission of symbiotic green algae between hydra strains. / Miyokawa, R. Y.O.; Tsuda, Takuya; Kanaya, Hiroyuki J.; Kusumi, Junko; Tachida, Hidenori; Kobayakawa, Yoshitaka.
In: Archives of American Art Journal, Vol. 235, No. 2, 01.01.2018, p. 113-122.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Horizontal transmission of symbiotic green algae between hydra strains
AU - Miyokawa, R. Y.O.
AU - Tsuda, Takuya
AU - Kanaya, Hiroyuki J.
AU - Kusumi, Junko
AU - Tachida, Hidenori
AU - Kobayakawa, Yoshitaka
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Some hydra strains belonging to the vulgaris group show a symbiotic relationship with green algae Chlorococcum sp. The symbiotic green algae can escape from the host polyps and can form swimming zoospores (which have two flagella) in culture solution. We observed that co-culture with the symbiotic polyps caused horizontal transmission of the symbionts into some non-symbiotic hydra strains that have no symbionts in nature and that belong not only to the vulgaris group but also to other hydra species groups. Although most of the horizontal transmission has ended in transient symbioses, a newly formed symbiosis between the symbiotic Chlorococcum sp. and strain 105 of Hydra vulgaris (Hydra magnipapillata) has been sustained for more than five years and has caused morphological and behavioral changes in the host polyps. We named this strain 105G. The asexual proliferation rate by budding increased under light conditions, although the feeding activity decreased and the polyp size was reduced in strain 105G. This new symbiosis between Chlorococcum sp. and strain 105G of H. vulgaris provides us with an intriguing research system for investigating the origin of symbiosis.
AB - Some hydra strains belonging to the vulgaris group show a symbiotic relationship with green algae Chlorococcum sp. The symbiotic green algae can escape from the host polyps and can form swimming zoospores (which have two flagella) in culture solution. We observed that co-culture with the symbiotic polyps caused horizontal transmission of the symbionts into some non-symbiotic hydra strains that have no symbionts in nature and that belong not only to the vulgaris group but also to other hydra species groups. Although most of the horizontal transmission has ended in transient symbioses, a newly formed symbiosis between the symbiotic Chlorococcum sp. and strain 105 of Hydra vulgaris (Hydra magnipapillata) has been sustained for more than five years and has caused morphological and behavioral changes in the host polyps. We named this strain 105G. The asexual proliferation rate by budding increased under light conditions, although the feeding activity decreased and the polyp size was reduced in strain 105G. This new symbiosis between Chlorococcum sp. and strain 105G of H. vulgaris provides us with an intriguing research system for investigating the origin of symbiosis.
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UR - http://www.scopus.com/inward/citedby.url?scp=85055609125&partnerID=8YFLogxK
U2 - 10.1086/699705
DO - 10.1086/699705
M3 - Article
C2 - 30358444
AN - SCOPUS:85055609125
VL - 235
SP - 113-122.
JO - Archives of American Art Journal
JF - Archives of American Art Journal
SN - 0003-9853
IS - 2
ER -