Trees do not pay taxes. Some seem to avoid death as well. Many of the world’s most ancient organisms are trees, including a 3,600-year-old cypress in Chile and a sacred fig in Sri Lanka that was planted in the third century B.C. One bristlecone pine known as Methuselah has been alive for nearly five millenniums, standing in a forest in what is now called California.
But according to a paper published Monday in the journal Trends in Plant Science, time ravages us all in the end. The paper, “Long-Lived Trees Are Not Immortal,” argues that even the most venerable trees have physiological limits — though we, with our puny life spans, may never be able to tell.
Sergi Munné-Bosch, a plant biologist at the University of Barcelona, wrote the article in response to a January study on ginkgo trees, which can live for over a thousand years. The study found that 600-year-old ginkgos are as reproductively and photosynthetically vigorous as their 20-year-old peers. Genetic analysis of the trees’ vascular cambium — a thin layer of cells that lies just underneath the bark, and creates new living tissue — showed “no evidence of senescence,” or cell death, the authors wrote.
Dr. Munné-Bosch said he found the paper “very interesting,” but disagreed with how some readers of the study in popular media and beyond had interpreted it.
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