Finally, Is This Really “The Last Roundup®”? It’s been a pretty horrible year or so for herbicides. Last month there was a lot of bad news regarding the commonly-used herbicide Roundup® (glyphosate). A jury ordered Monsanto to pay $289 million to a cancer patient in a Roundup® lawsuit. (This led…
Psychedelic Biosynthesis. As noted in the previous post, the psychedelic compound psilocybin, naturally produced by “magic mushrooms“, has recently been biosynthesized “in high yields” in the laboratory via genetic engineering (see Ref. 1 below). By first isolating the genes involved in psilocybin biosynthesis from “magic mushrooms” in the genus Psilocybe,…
“Strawberry Fields Forever”. Thanks to this 1967 Beatles song (see below), strawberries may sometimes be associated with psychedelia, especially to people of a certain age (i.e., old farts like me). This comes to mind because psychedelic drugs have been in the news recently thanks to the publication of a popular…
When No Really Means No (In Plants) When it comes to sexual reproduction, nearly half of all flowering plant species are self-incompatible. That is, the pollen (male parts of flowers) produced by an individual plant is somehow recognized by the plant and rendered ineffectual in self-fertilizing the ovules (female parts…
From Plant Secrets To Plant Antibiotics What were the five most re-tweeted and favorited plant news stories that I shared in September of last year? Well, here they are, in order of popularity, lowest to highest. “Scientists from the John Innes Centre have pioneered innovative new cell imaging techniques to…
From Cancer-Fighting Plants To Cadmium-Sniffing Moss Sadly, those who teach classes about plant physiology often feel the need to justify why plants are important. That’s how I usually began the first lecture in my Botany and Plant Physiology courses back in the day when I was boring undergraduate students. Most…
Potatoes And Tomatoes And Deadly Nightshade Two recent reports (1) that potato plants boost the chemical defenses in their leaves when their tubers are under attack (see Ref. 1 below) and (2) Why Tomato Leaves Smell “Grassy”? (see Ref. 2 below) reminded me of how fascinating the biochemistry is in…
Why Do Flowers Smell? A couple of the most common questions that people have about flowers are: (1) Why do flowers have scents? and (2) Why do many flowers smell good to us? The first question is fairly easy to answer, but the second one is a bit trickier to…
Signature Scents of Death & Decay In a previous post, we explored the discovery that plants emit a wide array of volatile organic compounds (VOCs) and that, because of this, sometimes plants stink. But I think few would argue that the prize for the “stinkiest” plants would have to go…
Plants “Stink” One of the really cool things about plants, which I think most people don’t realize, is that they emit many kinds of volatile organic compounds (VOCs). Some of these VOCs we can smell, such as flower fragrances and pine scents. But many, such as the plant hormone ethylene,…