What is the Difference Between Homosporous and Heterosporous Plant Life
What Is Heterospory. The larger spore is called a megaspore which leads to forming a female gametophyte. The smaller spore is known as a microspore which germinates to form a male gametophyte.
What is the Difference Between Homosporous and Heterosporous Plant Life
Web heterospory, defined as the production of smaller male microspores and larger female megaspores, arose independently in all major vascular plant lineages (lycophytes, monilophytes and spermatophytes) and is considered a key innovation for terrestrial colonization (bateman & dimichele, 1994; The smaller one is known as microspore and the larger one is known as megaspore. These spores differ in size. The heterosporous condition has been observed in many families of flowering plants, including the grasses and sedges and some conifers. Web heterospory induces a drastic reduction in the sizes of their gametophytes. Microspores and megaspores in a single plant. Web heterospory is the formation of two morphologically different spores (megaspores and microspores) from the sporophytes of pteridophytes and other seed plants. Web heterospory is the production of spores of two different sizes and sexes by the sporophytes of land plants. The smaller one is known as microspore and the larger one is known as megaspore. The clubmosses , the ferns including the arborescent.
Examples of heterospory plants are selaginella, salvinia, and marsilea, etc. The smaller spore is known as a microspore which germinates to form a male gametophyte. In heterosporous forms the differentiation of sex can be predicted at the spore stages. The heterosporous condition has been observed in many families of flowering plants, including the grasses and sedges and some conifers. The megaspores are the bigger spores that produce a female gametophyte and the microspores are the smaller ones that produce a male gametophyte. The smaller of these, the microspore , is male and the larger megaspore is female. Petersen & burd, 2016 ). Examples of heterospory plants are selaginella, salvinia, and marsilea, etc. The female gametophyte never outgrows the limits of the megaspore. Microspores and megaspores in a single plant. The microspore germinates to form the male gametophyte and the megaspore germinates to form the female gametophyte.
