Scientists Discover How Drought-Tolerant Plants Recover After Watering
Scientists have discovered how a drought-tolerant plant repairs the tiny structures responsible for photosynthesis after a long period without water.
The findings, published on October 26, 2026, reveal that some changes inside plant cells can reverse within hours, even though full recovery takes much longer.
What Happens Inside Plants During Drought?
A new study published in Plant Cell Reports examined Jatropha curcas, a drought-tolerant plant grown in parts of Asia, Africa, and Latin America. Its oil-rich seeds have attracted interest for biofuel production.
Researchers stopped watering young plants for 19 days and then studied how their leaves responded when water became available again.
They focused on chloroplasts, the structures that help plants turn sunlight into energy. Inside chloroplasts are thin membranes called thylakoids, which play an essential role in photosynthesis.
During drought, the spacing between these membranes decreased by 2–4 nanometers. After watering resumed, membrane spacing returned to normal within 30–60 minutes in one type of leaf tissue and within five hours in another.
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What Does This Mean for Plant Care?
According to Penn State Extension, plants can recover from temporary drought-related wilting once conditions improve. However, damage caused by prolonged water shortages can be much harder to reverse.
For gardeners, this means that leaves becoming firm again after watering do not necessarily indicate complete recovery. Some drought-tolerant plants have developed special ways to survive water shortages. For example, Aloe vera stores water in its thick, fleshy leaves.
Anastasiia Vasylchyshyna
Botanist
5+ of botanical experience
Anastasiia Vasylchyshyna studied biology at Taras Shevchenko National University of Kyiv, at the Educational and Scientific Center "Institute of Biology and Medicine." That academic grounding shaped how she approaches every article: start with the science, end with something a plant owner can actually act on.
Over the years, she's written dozens of articles on plant care and plant pathology — covering everything from seasonal plant picks, garden prep, propagation and pruning guides, and the everyday mistakes that harm houseplants. Her goal isn't just to answer a question, but to help readers understand why a plant behaves the way it does, so they can spot problems on their own next time.
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