@dr.bioforever: What you saw in this video is the epidermal cells of the watermelon rind and the juicy flesh of the watermelon flesh under the microscope! . Yes, embedded in the epidermal tissue, you can also see stomata. Stomata can be present in other parts of the plant (not just in the leaves!). Stomata are the pores that plants use to take up CO2 and to release O2. In other words, stomata are the pores that plants use to “breathe”. . Watermelon flesh is red because the watermelon cells accumulate a lot of lycopene, a bright red carotenoid pigment. In fact, watermelon flesh contains more lycopene than tomatoes. . By the end of the video you can see a fragment of watermelon xylem tissue. The Xylem is the plant tissue that transports water and minerals. Since watermelons contain so much water, you can imagine that there is a lot of xylem tissue going into the watermelon flesh. By the way, the ring-like/spiral structure shape of this tissue is amazing. . For this video I used an Olympus CX31 microscope and up to 600x magnification. #microscopy #microscope #microscopio #plantbiology #biology #biologia #shapesofnature #naturalpatterns #watermelon #sandia #artinnature #drbioforever

Adolfo Sánchez-Blanco, Ph.D

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Friday 09 June 2023 12:58:50 GMT