Examples of using Zooxanthellae in English and their translations into Malayalam
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Zooxanthellae red fluorescence in the tissue between polyps.
These are generally called‘zooxanthellae' and are of the genus Symbiodinium.
Up to 90% of SPS coral's nutritionalneeds are obtained by the food produced by Zooxanthellae.
Symbiodinium species(zooxanthellae) contain an accessory pigment called peridinin.
This instrument, called a fluorometer, can determine rates of photosynthesis in plants, algae, and zooxanthellae.
Without Zooxanthellae, the coral's tissue would appear white or translucent.
If conditions settle back to normal and free living zooxanthellae are present, the coral can become viable again.
Zooxanthellae have the major photosynthetic pigments chlorophyll A and chlorophyll B with chlorophyll A being greater.
These are generally called‘zooxanthellae' and are of the genus Symbiodinium. See Figure 1.
We probably don't want to since aPPFD value is above the Saturation Point of many zooxanthellae species/clades.
In zooxanthellae, antennae pigments include chlorophylls a and c2, peridinin and others to lesser degrees.
The message here is clear- many, if not most,Tridacna clams contains zooxanthellae that are tolerant of high light.
Without the presence of Zooxanthellae these animals would die as they produce 90% of the food requirements these animals require.
A good vitamin complex isuseful for synthesis of chromo proteins and can duplicate the marine amino acids produced by Zooxanthellae.
Without sufficient light of the proper spectrum, the zooxanthellae algae cannot supply enough food for the coral to grow properly.
Fortunately, it is possible to find a compromise in an aquariumresulting in the successful maintenance of‘sun' and‘shade' zooxanthellae and their host corals.
It is a common belief that small-polyp stony(SPS) corals' zooxanthellae require high intensity light to survive. Is this true?
The same is true for the zooxanthellae populating corals- some corals and their symbionts do well in high light while others are best suited to lower light conditions.
Most corals derivemuch of their food requirements through photosynthesis whereby the zooxanthellae that reside within their tissue provide the food source for them.
Photoadaptation allows zooxanthellae to lower their Compensation and Saturation Points as depth increases(and available light decreases) and in shaded areas.
If we assume that few Tridacna clams are imported from Japan and that most are from the Indo-Pacific,those specimens in the aquarium trade contain zooxanthellae of Clades A and C(with the possibility of another, Clade D. Clade D is generally assumed to be an opportunistic clade that exploits stressed environments.). We can expect these clades to be tolerant of high light.
The Zooxanthellae that live in coral tissue depend heavily on specific types of light energy to flourish in a symbiotic relationship with the host coral.
The thickness of these clams' mantles also allows self-shading of zooxanthellae which, of course, increases the light requirements by increasing the Saturation Point. Jantzen et al.(2008) found T.
Their zooxanthellae will be at a maximum rate of photosynthesis early in the morning, and their natural protective devices(the Xanthophyll Cycle) comes into play during mid-morning and protects them until light intensity drops in the late afternoon(assuming it is sunny all day.).
In this article from Advanced Aquarist,Dana Riddle shows us that the zooxanthellae algaes in coral respond to different wavelengths with higher rates of absorption and thus produce more food for corals.
These wavelengths are important in zooxanthellae photosynthesis- chlorophylls a and c2 utilize blue while the accessory pigment peridinin absorbs green light up to about 450nm. See Figures 1- 3.
Squamosa found them to contain zooxanthellae described as simply Clade A(today, this might be found to be Clade A1.).