The phrase "algal origin and" is correct and usable in written English.
It can be used when discussing the source or derivation of something related to algae, often in scientific or environmental contexts.
Example: "The study focused on the algal origin and its impact on marine ecosystems."
Alternatives: "derived from algae" or "of algal source".
FtsH protease is found in red algae, chromists (algae with plastids of secondary red algal origin) and green algae, but is nuclear-encoded in plants.
The outermost membrane is connected to the endoplasmic reticulum (ER) in some secondary plastids of red algal origin, and the recent ER-enclosure model has proposed that the outer pair of membranes are derived from the host ER [ 8].
To assess the presence of possible plastid-targeting sequences in the dinoflagellate host, we used a slightly different strategy, because targeting to peridinin-containing plastids differs from targeting to other secondary plastids of red algal origin and is not as well understood.
This pattern, which was seen in a recent study on Cdc48 as well (Agrawal et al. 2009), might indicate that the ERAD complex for the symbiont is of red algal origin and was introduced once by the possible progenitor of chromalveolates.
Overall we recovered only a relatively small number of homologs from our custom protein database, even when applying less stringent parsing criteria on the BLAST search results before tree building, identifying only organisms with a secondary plastid from red algal origin and several red algal species.
This would be the case if, say, the cryptophyte plastid was of secondary, red-algal origin and the haptophyte plastid of tertiary, cryptophyte origin.
In order to screen for nuclear-encoded plastid proteins, we analyzed whether the targeting signal of these proteins having to cross four membranes to reach the stroma is as conserved as in many other organisms harboring a plastid of red algal origin (Patron and Waller 2007; Gould, Waller, et al. 2008).
The predominance of short-chain n-alkanes (n-C13 n-C19 n-C13 n-C19 n-C13 n-C19nes, and absenC27of oleandne C29firm the dominantly planktonic/bacterial and algal origin of the organic matter.
There are four major groups comprising a secondary plastid of likely red algal origin: dinoflagellates, haptophytes, cryptophytes and heterokonts.
We here report 14 gene families of likely algal origin in C. intestinalis and other animals.
In contrast, by manually inspecting newly generated trees indicating putative algal ancestry, we recovered only 51 genes congruent with EGT, of which 23 and 9 were of red and green algal origin, respectively, whereas 19 were ambiguous regarding the algal provenance.
