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Manipulating insects

Herbivory insects manage to influence the stomata opening of the plant they feed on. Most do this to keep the stomata closed so they minimise the release of volatile organic compounds. These scent molecules are after all responsible for attracting the enemies; predatory insects. But the tomato leafminer (Phthorimaea absoluta) does the opposite. It forces…

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Calling sign

Orchids even before they germinate they are dependent on their symbiotic fungal partner. Their seeds lack the stored energy that seeds of other species have. Now Chinese researchers show that orchid seeds are not waiting for their fungus to arrive but actively entice them with signalling molecules doubling as carbon source.

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Subtle nudges

Most of us know penicillin as an antibiotic. It is made by the soil dwelling Penicillin rubens fungus. Now this fungus has many brothers and sisters, some of which like to nestle themselves between the cells of roots. For the plant this is positive as colonized plants grow more roots. Now a new study by…

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Handiness in flowers

Twist to the left, twist to the right. Mirror image flowers place their male and female organs on opposite side of the flower midline, preventing self-fertilization. But to ensure pollination, it helps if half of the flowers of a species are oriented the opposite way. Now a group of international researchers report that how South…

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Fuelling the repair

When plants are wounded, they quickly set to heal themselves. These unplanned cell divisions and growth require extra fuel. How the plant makes sure this fuel reaches the wound site is not clear. Now a new paper from Israeli scientists shows that while this extra fuel reaches the wound site in the form of sucrose,…

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Buffering genetic variation

Most genetic differences within species do not result in a phenotype. Instead, their effects are buffered away. One of the ways plants and other organisms do this is by providing help with protein folding, preventing misfolding. Now a group of Chinese scientists have found a potentially second way plants do this, via their spliceosome.

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The hidden layer of genetic flexibility

Plants have fascinating genomes, complex with many multiplicated genes. It is one of the reasons they can produce many complex compounds. So, when I heard that they have those so-called extracellular circular DNA I was hooked.

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Plant organ growth inside story

The view was that the shape of plant tissues, including those of grains and fruits, is controlled by the pressure that the outermost tissue layers give to the inner tissues. A kind of mechanical feedback. But now a new study shows that the inner tissues also have a say in this.

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Sensing the point of no return

When is it time to die, that is the question that lays behind the latest study of a group of Swedish researchers. They found that sensing depleted levels of the amino acid arginine tell the cell to throw in the towel.

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Strengthening the walls

Plants, like all organisms don’t like an excess of salt. One of its ways to deal with salt stress is to strengthen their cell walls. FER, a receptor in the cell membrane is one of the key proteins in regulating this. Now a group of Chinese researchers show that key to this is the small…

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Bending due to gravity

Place a plant on its side and its roots and shoots quickly grow down and up again. The plant sensed that the direction of gravity changed and adjusted its growth accordingly. But how plants regulate this temporary adjustment was not exactly known. Now a group of international researchers show that one part of the answer…

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Turning red

Plants are wonderful chemical factories. So when synthetic food dyes get banned it is only logical to look for plant produced alternatives, like betalain which is naturally produced by beetroots and their relatives. A new study by American researchers explores the possibility of getting other plant species to produce betalain.

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Switching from 2D into 3D

Life as we know it happens in 3D. So, when a group of international researchers found a gene that appears to have a role in the transition from 2D into 3D development they where excited.

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The old die to protect the young

Flooding gives plants a big blow. Still, if the flooding doesn’t take too long, plants can survive due to a number of survival techniques. One of these is the shedding of old leaves. Now Dutch researchers show in a new study what happens after flooding.

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Shifting DNA markings

Markings on the DNA help plant cells ‘remember’. Who they are. In what developmental stage they are. Their environment. Now a new study in Communications Biology by Chinese researchers shows that during the early stages of embryo development these DNA marks shift frequently.

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Hooked hairs

Sometimes when you look closely at something, you see something new. That is what a group of American researchers found when they looked closely at bean seedlings. In Science Advances they report about the up until now unknown hooked hairs on these seedlings.

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Closing the trap

Carnivorous sundews actively capture their prey. But in contrast to the related Venus flytraps, sundews are not responding to touch or other mechanical stimulants. Now Chinese researchers show that a small peptide, glutathione, likely released by the captured fly, signals for the trap to close.

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How plants photosynthesize

Sometimes it seems that plants grow spontaneously. This all is due to maybe one of the coolest tricks of plants in that they produce their own food. Photosynthesis plays a major role in this process.

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