Plant and environmental sciences

This is how the bloom collapses: four giant hexagon-shaped viruses that have replicated in a unicellular alga (the rough texture on the right) are on their way out to infect more algae. Three of the viruses are normal and ready for action - and one is white and empty of DNA. Photo: Dr. Daniela Shatz

The hunt for giant viruses in the ocean

In the picture on the left: leaves that have undergone regeneration. Courtesy of the researchers and the Volcanic Institute

The plants can reproduce sexually or by cloning, but not at the same time

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A new study by Dr. Moshe Reuvani from the Volcanic Institute, published in the journal Nature, found that the presence of a protein called florigen, which is secreted by the plant during flowering (the stage of sexual reproduction), is related to the decrease in the ability of the plant
A mixed forest plot of carobs, oaks, pines and other trees near Beit Shemesh. The researchers are looking for symbiotic relationships between different species of fungi and trees

The disappearing mushroom

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The coral reef in Eilat. Photo: Daviddarom / Wikimedia.

The few and the fastest

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Bacteria that fix carbon dioxide from the air. Illustration: Prof. Ron Milo, Weizmann Institute

Bacteria that feed on carbon dioxide only and build the entire biomass of their bodies from carbon that comes from the air

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Natural food colors. Photo: Prof. Assaf Aharoni's laboratory, Weizmann Institute

Color from nature

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Algal cells respond in different ways to identical stress conditions. Illustration: Prof. Assaf Vardi's laboratory, Weizmann Institute

survival of the few

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Sulfur-loving bacteria attack algal cells of the species Emiliania huxleyi Source, Vardy. Weizmann Institute

How do sulfur-loving bacteria contribute to the rapid decline of algal blooms in the ocean?

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Arabidopsis_thaliana From Wikipedia

The eyes of the plants

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Algal particles emitted from samples infected with the virus. Instead of particles up to a micron in size, phytoplankton remains up to four microns in size were discovered

Where does the algae go after they die?

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The sand dune (Heterotheca subaxillaris). Photo: Janet Tarbox / flickr.

The invader who takes over the coastal strip

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Coral reef. Photo: shutterstock

A tiny aquarium makes it possible to study the effect of climate change on microscopic processes in corals

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