Artisan's Blog

George Theodoris

Plant enemy part 1: Mealies-fiends without a face

Plant enemy part 1: Mealies-fiends without a face

As a child I remember loving this weird old 1950s science fiction movie "Fiend Without a Face". It was about oval shaped creatures that attached themselves to peoples' necks and sucked out their life force. Mealybugs are the fiends without a face of plants. They suck out the plant's life force. In this blog post I will try and demystify these fiends without faces and give people information for dealing with this annoying pest.  Mealybugs 101 What exactly are Mealybugs? Mealybugs, also called "mealies" for short, are insects belonging to the family Pseudococcidae. They feed on plant juices. They have a straw-like mouth-part...

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George Theodoris

Secret life of plants 3: Variegation

Secret life of plants 3: Variegation

This is my third science related blog post which is intended to give plant hobbyists a deeper appreciation of the precise nature of how their plants grow as well as a base of knowledge from which to better comprehend phenomena such as variegation and cresting. This post will focus on leaf variegation.  In my first blog post, "Secret life of plants 1: the Meristem", we learned that plants have dome clusters of embryonic stem cells (merstems) at their growing points that give rise to the different structures that make up a plant - leaves, stems, flowers, roots etc. These structures all develop from the edges of the mersitem domes...

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George Theodoris

Secret life of plants 2: photosynthesis

Secret life of plants 2: photosynthesis

This is my second science related blog post which is intended to give plant hobbyists a deeper appreciation of the precise nature of how their plants grow as well as a base of knowledge from which to better comprehend phenomena such as variegation and cresting. After my last blog post -  Secret life of plants 1: the Meristem - I expected the this next one would focus on variegation. But I realized that to really be able to grasp variegation and, in particular, the origin and inheritance of variegation, one needs of have a fundamental understanding of the role chlorophyll plays in plant life. So please join...

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George Theodoris

Secret life of plants 1: the Meristem

Secret life of plants 1: the Meristem

The way plants grow and develop is fascinating and distinct from the way animals grow and develop. In this blog post I want to give plant hobbyists a  deeper appreciation of the precise nature of how their plants grow and a base of knowledge to better comprehend phenomenon like variegation and cresting which will be explored in future blog posts.  Part 1: the Meristem Imagine if on the top of your head there was a dome of undifferentiated embryonic tissue. This tissue would constantly make new organs-new arms would be produced out of this embryonic dome  and your old arms would shrivel away and fall off. On...

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