"Desire", in the common usage, is something that requires an ability to think. Now we can stretch the term, and say that when a plant grows in the direction of more sunlight, it is expressing a "desire" to live. And when bacteria convert available fuel into growing and dividing, they are expressing a "desire" to live and multiply. But when we start stretching the definition of desire beyond conscious thinking, my response is going to be "who cares what it desires?". The plant may desire to live and grow, but I desire to eat it, so I'm going to. There is an extreme form of vegetarianism which doesn't share my views on this -- the "fruitarians" will only eat plant parts such as fruit, which the plants dump and do not need to keep in order to stay alive. They believe it's unethical to ignore the plants' "desire" to live.
SD