A few species with the most powerfully thermogenic flowers also exhibit temperature regulation, which is the maintenance of a relatively constant temperature in the flower, regardless of external air temperature.Rather precise thermoregulation has been discovered in , flower temperature varies only 6°C while ambient temperature varies 35°C (Figure 3).
Close examination of the data reveals that there is a small decrease in flower temperature that occurs with falling ambient temperature (see Figure 3).
Therefore is it clear that respiration in these species is relationship between temperature and rates of biochemical reactions.
In most thermogenic species studied so far, the substrate for respiration is carbohydrate, often imported from other parts of the plant.
In , however, the substrate is lipid that is stored in the florets prior to blooming (Seymour et al. Analysis of heat production by direct calorimetry and respirometry show that all of the energy in the substrates ends up as heat in (Lamprecht et al. Although there is the possibility of some energy going into synthesis of floral structures, this appears to be negligible.
The warm spadix is visible, because the spathe (V-shaped structure) has been cut away.
Sterile male florets in the center of the spadix are warmest, but the fertile male florets also produce heat.Some species, such as the arum lilies, are so intensely thermogenic that the temperature of their flowers can increase up to 35°C above the surroundings.For example, in Brazil, the inflorescence of during thermogenesis.In springtime there, Meadows are gay with the lowest flowers and streams sleep and dance merrily as they flow down their valleys. Here are the beauteous sights of nature, more beautiful than any painting, which is, after all, imitation. The butterfly with its silken wings flits from flower to flower.Painters make pictures of the grassy fields, streams, and flowering trees. At night the glow worm lights its lamp among the flowers and grass.Torrential rains wash them, white snow falls on their forehead, the breezes and storm blow Cross them.Nature has been very generous to both Kashmir and Switzerland. And dawn has inspired the poets to write poetry that moves the words of millions.The clear cool waters, the gentle breezes, the coiling rivers, the bubbling springs, the freshwater lakes and the snow-clad mountains of Kashmir are very charming indeed.While praising the beauty of Kashmir a poet has aptly said: Baron loved the stormy ocean and called it the Image of God and the Throne of the Almighty. When the full moon sketches her silvery beams and shines on the earth, there is a commotion in the sea and mountainous tides rise high as if to touch the moon.Since then, botanists have recorded significant self-heating in flowers, inflorescences or cones in about 14 families of seed plants.These plants usually have rather large, fleshy floral structures, are often pollinated by beetles, bees or flies, and are always protogynous (female parts are receptive to pollination before male parts release pollen, thus preventing self-pollination).