A novel biflagellate protist that consumed chloroplasts inside material of the invasive marine green alga Codium fragile was reported from the U.S. east coast in 2003. We observed a similar association in C. fragile from five sites in Nova Scotia, Canada during 2013 and 2014. After incubating Codium fragments for 2–3 days, some utricles and filaments contained numerous chloroplast-consuming cells. Transmission electron microscopy (TEM) confirmed that these were kinetoplastids with a pankinetoplast, large electron-dense droplets in the cytoplasm and a connective between the paraxonemal rod bases, but no conspicuous para-cytopharyngeal rod, all consistent with U.S. material observed in 2003. The ITS1-5.8S rRNA-ITS2 sequences from 13 Nova Scotia isolates were identical. SSU rRNA gene phylogenies placed the Codium-associated kinetoplastid in neobodonid clade ‘1E’. Clade 1E likely contains no previously described species, and branches outside all other major neobodonid groups, either as their sister or as a separate lineage, depending on rooting. These results indicate that the kinetoplastid represents a single species that merits a new genus (and family), and we describe it as Allobodo chlorophagus n. gen., n. sp. The lack of evidence for food sources other than Codium is consistent with a parasitic association, but other possibilities exist (e.g. necrotrophy).

这里面所消耗的侵袭海洋绿藻的材料叶绿体的新型双鞭毛单细胞生物刺松藻从美国东海岸的报道在2003年我们观察到类似的协会C.脆弱的2013年和2014年期间，在加拿大新斯科舍五个站点后孵化刺松在2-3天的碎片中，一些囊和细丝包含大量消耗叶绿体的细胞。透射电子显微镜（TEM）证实，这些是运动塑料，带有泛动塑料，细胞质中有大的电子致密液滴，副骨杆基之间有结缔组织，但没有明显的副细胞咽杆，这与2003年在美国观察到的材料一致。来自13个新斯科舍省分离株的ITS1-5.8S rRNA-ITS2序列相同。SSU rRNA基因的系统发育放置在刺松新牙结节“ 1E”中的相关动素体。进化枝1E可能不包含先前描述的物种，并且根据其生根，在所有其他主要新齿don类动物群之外的分支（作为其姊妹或单独的系）。这些结果表明，运动质体代表了一个具有新属（和家族）的单一物种，我们将其描述为Allobodo chlorophagus n。gen。，n。sp。缺乏比其它食物来源的证据刺松是寄生的关联一致，但存在其他的可能性（如necrotrophy）。