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Next it was found that it was physiologically and structurally the same in the plant, that it was the living part of the plant, that which manifested the life and did the work in vegetable as well as in animal organisms.

We must consider the distinctive characters and the general nature of plants from the point of view of their morphology, their behavior under external conditions, their mode of generation, and the whole course of their life.

We are seeing the cells of plants and animals more and more clearly as chemical factories, where the various products are manufactured in separate workshops.

I mean, we're really making a quantum change in our relationship to the plant world with genetic modification.

Many years ago it was taught that plants and animals were composed of different materials: plants, of a chemical substance of three elements,- carbon, hydrogen, and oxygen; animals of one of four elements, nitrogen being added to the other three.

But it was soon ascertained that this quaternary matter of the animal body was chemically the same in the plant, was elaborated there, and only appropriated by the animal.

I know my corn plants intimately, and I find it a great pleasure to know them.

One would think that plants belonging to the same genus would always produce identical or at least similar oils. But this is by no means so.

New molecular methods that add or modify genes can protect plants from diseases and pests and improve crops in ways that are both more environmentally benign and beyond the capability of older methods.

Whether we consciously realize it or not, the biodiversity with which we are most familiar, and the biodiversity with which we have most intimate historical, cultural and biological connections, is that associated with food plants.