LIFE CYCLE FUNARIA PDF
Funaria life cycle Class 11 Biology. Back to categories. Occurrence l The genus Funaria comprises species. In India, it is represented by 15 species. The following diagram gives one example of a bryophyte life cycle, that of the moss Funaria hygrometrica. click to enlarge · Print this diagram as. Funaria hygrometrica – life cycle. Gametophyte. Spores. Protonema. Sporophytes . See. SEP. A recently germinated spore with a rudimentary protonema. spore.
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When the surface of moss plant is wet, the mature antheridia absorb water and burst releasing the male gametes antherozoids.
The amphithecium divides by periclinal division to form two concentric cyclle. Views Read Edit View history. History and Features of Viruses.
Between the outer wall and inner wall is the cavity of the spore sac. It is covered by a cap like structure called calyptra.
Life Cycle of Funaria (With Diagram) | Bryopsida
The sporophyte is semi-parasitic in nature, the mature sporophyte can be differentiated into three distinct parts—foot, seta and capsule. Protonema has green epiterranean chloronemal branches chlornema and non-green subterranean rhizoidal branches caulonema.
It is called antheridial initial. Life Cycle of Cycas: Androcytes ooze fuharia in the form of a viscous fluid through this pore. It is composed of two to three layers of radially elongated pitted cells. These cells are capable to manufacture their own food but dependent on gametophyte for water and mineral nutrients.
It is bounded by the single layered epidermis which is interrupted by stomata. The neck is slightly tubular, twisted, single layered and consists of six vertical rows of neck cells, which enclose an axial row of ten or more neck canal cells. After fertilization the zygote develops into a sporophyte, which however funria attached to the female gametophyte.
These fragments grow into new protonemata which bear buds.
Funaria – Wikipedia
Registration Forgot your password? The outer wall is thick, smooth, brown and known as exosporium, while the inner wall is thin, hyaline and called endosporium. Further development of the tissues in the capsule region takes place by these amphithecial rings and endothecial cells.
Rhizoidal branches function as anchoring and absorbing organs while chloronemal branches develop minute green buds behind the cross walls which develop into leafy gametophores.
General characteristics of mosses Wonderful documentary film about mosses made by cjcle “Core Facility Cell Imaging and Ultrastructure Research” of the University of Vienna link. Auth with social network: All mosses are haplo-diplonts: The female shoot arise from the base of the male shoot and called as archegonial branch or archegoniophore.
Life Cycle of Funaria: Sexual and Vegetative Life Cycle
The thin walled cells of the annulus break away, the operculum is thrown off and the peristome teeth are exposed.
Due to the absence of roots and an efficient vascular system mosses can only thrive in humid environments without too much sunshine. Funaria hygrometrica is a common moss on Indian hills. OK Introduction to the Plant Kingdom: These cells are now commonly called as hydroids.
Soon after fertilization, the zygote secretes a wall around it and enlarges in size. A cross section through the upper portion of the young sporogonium shows a two identical segments Fig. Spore is the first cell of gametophytic generation.
It differentiates an apical cell with two cutting faces in the epibasal fuharia Fig. The same goes for hornworts, but not for liverworts, which completely lack stomata.