According to foreign media reports, the cocoon is a "solar vertebrate," and scientists discovered for the first time that photosynthetic organisms are present in cockroaches.
The latest research by scientists confirmed that spotted blunt beak is the first symbiotic vertebrate with photosynthetic algae.
Scientists have long believed that only plants, algae, bacteria and some invertebrates can use photosynthesis, they can directly convert sunlight into energy. But for the first time, they discovered a photosynthesis vertebrate. This mystery creature is the common spot blubber (scientific name: Ambystomamaculatum). Interestingly, speckles are not a new species for researchers, and people have long known that the organism's embryos are symbiotic with photosynthetic algae, but scientists previously only believed that this symbiotic relationship exists Outside the body, earthworms exchange energy with algae.
Before the original researchers did a detailed analysis, Ryan Kerney (Dyan House University scientists) in the study of a group of spotted blunt estuary embryos found that there is a gap with the previous view, and that a bright green The substance is derived from inside the cell.
This bright green indicates the presence of chlorophyll, a green pigment that absorbs light that may act photosynthesis. Knai said: "In the experiment, I performed a long-term exposure of the embryos of the hatching mottled bristles with fluorescent images. By using transmission electron microscopy, I confirmed my point of view that algae do coexist in this kind of cocoon. In the cells."
In fact, nature's bio-symbiotic relationship often exists in mitochondria and organelles that can generate cellular energy, so it is very likely that mitochondria directly harvest oxygen and carbohydrates, which are by-products of photosynthesis of algae.
This discovery is surprising because all vertebrates have an adaptive immune system that can naturally destroy the heterogeneous biological material in their cells. However, the algae in the spotted blubber cells avoid this defensive property is still An unknown mystery.
Even more attractive is that Knai also found algae in the fallopian tubes of adult female spotted beaks, where the embryos form in their sac. This means that symbiotic algae are likely to be inherited from the mother to offspring during the breeding season.
David Wake of the University of California, Berkeley, said that I would like to know if algae can enter the germ cells, but this is a real challenge. Previously it was thought that vertebrate cells could handle heterogeneous biomass.
Although this is the first time that a symbiotic relationship exists between vertebrates and photosynthetic microorganisms, this discovery will open up new research horizons and allow scientists to explore in the future whether other animals have similar characteristics.
Developmental biologist Daniel Buchholz said: "I think if people start to pay attention to 'solar vertebrates', it is very likely that they will acquire more instance species in the future!"
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