One of the essential
features of all living things on the earth is reproduction. Reproduction is a
vital process for the existence of a species and it also brings suitable
changes through variation in the offsprings for their survival on earth. Plant
reproduction is important not only for its own survival but also for the
continuation and existence of all other organisms since the latter directly or
indirectly depend on plants. Reproduction also plays an important role in
In this unit let us
learn in detail about reproduction in plants.
1682 - Nehemiah Grew
mentioned stamens as the male organ of a flower.
1694 - R.J.Camerarius
described the structure of a flower, anther, pollen and ovule
1761 - J.G. Kolreuter gave a
detailed account on the importance of insects in pollination
1824 - G.B.Amici discovered
the pollen tube.
1848 - Hofmeister described
the structure of pollen tetrad
1870 - Hanstein described the
development of embryo in Capsella and Alisma
1878 - E.Strasburger reported
1898- E.Strasburger discovered the process of Syngamy.
1898 and 1899 - S.G.Nawaschin and L. Guignard & independently discovered
1904 – E.Hanning initiated
1950 - D.A. Johansen proposed
classification for embryo development
1964 - S.Guha and
S.C.Maheswari raised haploids from Datura pollen grains
1991 - E.S.Coen and E. M.
Meyerowitz proposed the ABC model to describe the genetics of initiation and
development of floral parts
2015 - K.V.Krishnamurthy
summarized the molecular aspects of pre and post fertilization
reproductive development in flowering plants
Professor P. Maheswari
was an eminent Botanist who specialised in plant embryology, morphology and
anatomy. In 1934, he became the Fellow of Indian Academy of Science. He
published the book titled “An introduction to the Embryology of Angiosperms”in
1950. He established the International Society for Plant Morphologists, in
occurring in organisms fall under two major categories
1. Asexual reproduction
2. Sexual reproduction.