darthvirgin t1_j1ue5tm wrote
What’s the most interesting or impressive adaptation of dessert plants, or one that’s particularly unique?
IsraelinSF t1_j1vgfmz wrote
Here is an example from one of our previous responses: One annual plant in the Negev, called Salsola Inermis, was the first plant I studied as a researcher in the Negev. The uniqueness of this plant is that it is a summer annual desert plant, meaning it grows in summer months when there is no rain at all. It germinates at the end of March when there is minimal rain then grows to maturity in the summer, in an area that is very deprived of nitrogen. Two main factors for the plants in the desert is lack of water and nitrogen, making this plant special. With UC Berkeley we managed to find for the first time that this species uses water from dew. They distinguish dew from other water through the different chemical characteristics of hydrogen and oxygen in water. In addition, we found a unique three-way symbiosis between Salsola Inermis, weevils, and nitrogen fixing bacteria that live in the guts of the weevil. We showed that the weevils contribute nitrogen to the Salsola Inermis which they get from the bacteria, and the Salsola Inermis contributes sugars to the weevils in addition to water from the dew. All three organisms benefit.
[deleted] t1_j1wms4k wrote
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