A flowering stem of Primula florindae at the stage of seed development, partially picture shows phyllody - the process whereby the norma
A flowering stem of Primula florindae at the stage of seed development, partially picture shows phyllody - the process whereby the normal development of flowers is disrupted, giving rise to leaves. This can produce \green\" flowers; by roses when each petal develops as a , some of the flower primordia in the centre of the inflorescence have developed into a single leaf. Normal flowers are borne on a pedicel (flower stalk, here cream, and later green). By contrast the leaves are borne on petioles ( leaf stalks ), which are reddish in hue cause of a particular example of phyllody is difficult to determine. It may be due to environmental (climatic) factors. Many cases arise from infection by mycoplasmas - small pleiomorphic bacteria (in plants known as phytoplasmas). Such factors can alter plant hormone levels, resulting in developmental abnormality."
Size: 3468px × 5212px
Photo credit: © DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: abnormal, bacteria, biological, biology, botanical, botany, development, florindae, garden, hormone, inflorescence, mycoplasma, pedicel, petiole, phyllody, phytoplasma, plant, primula
