You are here

Home » Content

MORPHOLOGICAL VARIATION OF TRICHOMES IN SOME COMMON SPECIES OF ASTERACEAE

Journal Name:

  • The International Journal of Pharmaceutical Research and Bio-Science

Publication Year:

  • 2012

Key Words:

Author Name
Abstract (2. Language): 
The family Asteraceae (Compositae) is a very large cosmopolitan family. It is represented by about 24,000 species, which are distributed throughout the world except Antarctica. (Funk et.al. 2009). In West Bengal the family is represented by about 83 genera 205 species (Ghosh and Mitra, 1982). Trichomes or hairs furnish rich field for morphogenetic investigation and are among the most useful of all anatomical features for systematic comparison of angiosperms. The available information in regards to hairs of common plants of West Bengal in Asteraceae is very scanty. Present study deals with 10 common taxa of the family Asteraceae. The present study is therefore, aimed for identification of some plants along with other characters in the family Asteraceae in some parts of Bengal. Hairs of the studied taxa are basically non-glandular sometimes glandular type. Non-glandular hairs are variable from unicellular to multicellular, but glandular hairs are always multicellular. Some of the studied genera can be distinguish from the other genera by some species type of hairs. For example the Vernonia cinerea L. can be separated from other genera by the presence of T-shaped hairs. The basic structures of hairs are more or less constant in Eclipta alba (L.) Hassk, Helianthus annuus L. and Synedrella nodiflora (L.) Gaertn. In other taxa forms of hairs are greatly variable i.e. different parts of plant possess different morpho-types of hairs. The Ageratum houstonianum Mill. Have maximum types of hairs, i.e. ten types. The second highest number of hairs has been reported in Parthenium hysterophorus L. containing nine types of hairs. In Blumea lacera L., eight types of hairs have been reported. Glandular hairs of variable size and shaped have been noticed in Blumea lacera L., Parthenium hysterophorus L. and Synedrella nodiflora (L.). 5-celled, shriveled, swollen terminal celled hairs have been observed only in leaves of Ageratum houstonianum Mill. Similarly many celled triseriate, conical based with truncate apex hairs are found only in stems and petioles in Parthenium hysterophorus L. Petiolar part of Synedrella nodiflora (L.) Gaertn. has unique type of hairs, usually uncommon in other studied taxa. In Tridax procumbens L., peduncle has unique type of hairs. Flagellate type of hairs can be broadly divided into two categories on the basis of morphological character of apical cell.
Bookmark/Search this post with
FULL TEXT (PDF): 
PDF icon ijprbs_223.pdf
  • 6
408-425
  • English

REFERENCES

References: 

1. Adedeji O: Leaf epidermal studies of the species of Emilia Cass. (Senecioneae, Asteraceae) in Nigeria. Botanica Lithuanica. 2004: 10 (2): 121-133.
2. Adedeji O, Ajuwon OY and Babawale OO: Foliar epidermial studies, organographic distribution and taxonomic importance of trichomes in the family Solanaceae. International Journal of Botany. 2007; 3 (3): 276-282.
3. Adedeji O. and Jewoola OA: Importance of leaf epidermal characters in the Asteraceae family. Not. Bot. Hort. Agrobot. Cluj 36 (2): 7-16
4. Aleykutty KM and Inamdar JA: Structure, ontogeny and classification of trichomes in Ranales. Feddes Repertorium 1980; 19 (1¬2): 95-108.
5. Bremer K: Asteraceae. Cladistics & Classification. Timber Press, Port- land.
1994.
6. Carlquis S: Structure and ontogeny of glandular trichomes of Madinae (Compositae). Brittonia 1958; 10: 78 - 93.
ISSN: 2277-8713
IJPRBS
7. Carlquist S: Anatomy of Guayana Mutisieae, Part II. Mem. N. Y. Bot. Gard.
1958; 10: 157-183.
8. Carlquist S: Comparative Anatomy. Holt Rienehart & Winston, New York. 1961.
9. De Bery A: A Comparative Anatomy of the Vegetative Organs of the Phanerogams and Ferns. Clerendon Press, Oxford. 1984.
10. Faust WZ and Jones SB: The systematic value of trichome complements in a North American group of Vernonia (Compositae).
Rhodora 75: 517-528.
11. Funk VA, Susanna A, Stuessy TF and Bayer RJ: Systematic Evolution and Biogeography of Compositae. IAPT, Vienna.
2009.
12. Ghosh RB and Mitra Bimal: Contribution to the study of Asteraceae in West Bengal.
Bull. Bot. Soc. Bengal 1982; 36 (1 & 2 ) : 61 -66
13. Goebel H: Organography of Plants Especially of the Archegoniatae and Spermatophyta, Part 1, Clerendon Press,
Oxford. 1900.
Available Online At www.ijprbs.com
Research Article
Lipika Saha,
IJPRBS,
2012; Volume 1(6): 408-425
14. Inamdar JA, Gangadhara M and Shenoy KN: Structure, ontogeny, organographis distribution and taxonomic significance of trichomes and stomata in the Cucurbitaceae. In : Bates, D.M, Robinson, R.W. and Jeffrey, C (eds.) Biology and Utilization of the Cucurbitaceae. Cornell University Press. London. 1990.
15. Metcalfe CR and Chalk L: Anatomy of the Dicotyledons. Vol. 1. Oxford, U.K. 1950.
16. Metcalfe CR and Chalk L: Anatomy of
the Dicotyledons. Vol. 2. Oxford, U.K. 1979.
17. Ramayya N: Studies on the trichomes of some Compositae I. General structure. Bull. Bot. Surv. India 1962: 4: 189-192.
18. Ramayya, N: The development of trichomes in the Compositae. In: Choudhury, K. A. (ed.) Recent Advances in the Anatomy of Tropical Seed Plants. Hindustan Publishers. 1969; 85 - 11
ISSN: 2277-8713
IJPRBS
19. Ramayya, N: Classification and Phylogeny of the trichomes of Angiosperms. In : Ghouse, A.K.M. and Yunus, Mohd. (eds.) Recent Trends in Plant Anatomy, K.A. Choudhury Commemoration Volume. Tata McGraw Hill Pub. Ltd. New Delhi. 1972.
20. Sahu TR: Trichome studies in Senecio Linn., structure, distribution and taxonomic significance. J. Indian bot. Soc. 1983: 62.
21. Sahu TR: Taxonomic implication of trichome, complements in Vermonia (Compositae) in India. Feddes Repertorium 1984; 4 (4): 237-249.
22. Solerader H: Systematic Anatomy of the Dicotyledons. Vols. I & II. Clerendon Press,
Oxford. 1908.
23. Tiwari Ela: Structure, classification and organographic distribution of trichomes in some Mutisieae. Pl. Syst. Evol. 1996; 30:
253-258.

Thank you for copying data from http://www.arastirmax.com