Coast redwoods (sequoia sempervirens) are some of the most unique and versatile tree species on Earth. Their ancestors have been on the planet for around 245 million years! How do organisms survive this long? How do plants and animals adapt over a gazillion years? They must mutate! Let's look at some mutations that are visually very odd! In the image above, it looks like a redwood tree growing off another redwood tree. The living tissue of the cambium layer (beneath the bark) contains unsprouted bud tissue that carries the tree's genetic material. So when the branch sprouts, in some circumstances, it begins to grow like another tree, moving upward toward the sun. Coast Redwoods have a genetic makeup that’s nearly nine times larger than the human genome. The 3 species of sempervirens we see today, emerged between 65-36 million years ago; sempervirens, giganteum (Giant sequoia), and glyptostroboides (Dawn redwood). The earliest fossil record in California is found in rocks less than 20 million years old. (During the Miocene era) Nearly white-leaved albinos are another mutation. They are that way because of a rare genetic mix-up. The tree and its needles lack chlorophyll. They survive largely as parasites, mooching off the parent tree with which they share roots. They also contain heavy metals like cadmium, copper, and nickel. What causes horizontal wavy ridges or curls on the bark and interior of a few coastal redwoods?
Don’t know. Most likely it's a genetic mutation. These patterns can also be seen by neighboring redwood trees growing out of the same root system (clonal group). What plant has the most base pairs? The itty bitty fern called Tmesipteris oblanceolata, pictured below. It has a whopping 160 billion base pairs in its DNA. The redwood has 26.5 base pairs in its DNA. The researchers collected T. oblanceolata from the island nation of New Caledonia. It’s just a few inches tall.
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Everyone who lives in California knows—there’s too many people. Sure, there are beautiful remote parts of the state that feed the soul. However, it’s a challenge to find freedom, quiet, and space among a population of 39 million. After months of social interaction as a park docent and guide, I needed to recharge my batteries, and get the hell out of California. Hubby and I hit the road, and over three weeks, and 6 states, we built memories of sunsets, scenery, wildlife, and grandkids (the other type of wildlife). The experience fulfilled an urge to connect with nature, and play. Surprisingly, it was exhilarating when some highways were devoid of cars for miles! Below is a series of photos taken mostly in Montana, with no humans, cars, or buildings. Animal pics taken safely from the car. Fungi sense and respond to various stimuli such as light, chemicals, and touch. A relatively new discovery indicates they also have a connection to sound. Low frequency sounds seem to increase productivity of plants.
Sound waves can be used to stimulate growth of mycorrhizal fungi in the soil to enhance plant growth. It is the mycelium, those tiny white hairy tendrils, that responds to sound waves. |
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