Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Lichen Flora of National Botanical Garden, Mirpur, Dhaka

ABDULLAH-AL-KAIUM
Department of Botany, University of Dhaka, Dhaka 1000, Bangladesh

SHAMIM SHAMSI*
Department of Botany, University of Dhaka, Dhaka 1000, Bangladesh

Abstract/ Executive Summary:

An investigation was carried out to study lichen flora of National Botanical Garden, Mirpur, Dhaka during May 2018 to April 2019. Six genera of lichens namely Cladonia, Cryptothecia, Herpothallon, Parmelia, Pertusaria and Usneawere recorded from15 blocks of the garden. Out of six genera Usnea and Cladonia are new record for Bangladesh. Most frequently occurring lichen genus Parmelia was isolated in pure culture. Anatomical study and chemical tests were done in the Laboratory of Mycology and plant pathology, Department of Botany, University of Dhaka. The present investigation will enrich the knowledge on uses and documentation of lichen flora in Bangladesh. Lichen is by defination a symbiotic organism. Symbiotic partners are phycobiont (algae) and mycobiont (fungi). Due to over population and industrial revolution, toxicity and pollution increases day by day in Dhaka city. Whereas lichen is an eco-friendly symbiont in nature. National Botanical Garden is a restricted area where indigenous and rare plants are served. In addition, National Botanical Garden is rich in plant resources. So the location was selected to study lichen flora. Considering the above fact, the present investigation has been undertaken with the following objectives: i. Collection of lichen from National Botanical Garden. ii. Identification of respective fungus associated with selected lichen. iii. Isolation of fungus with most frequently occurred lichen and iv. Study of anatomical features of most occurred lichen.

Keywords: Lichen flora; Six genera; National Botanical Garden; Bangladesh.

Location: National Botanical Garden, Mirpur, Dhaka

Start Date: 00-05-2018

End Date: 00-04-2019

Program Area: Conservation and Biodiversity

Commodity: Vegetation

Objectives:

An investigation was carried out to study lichen flora of National Botanical Garden, Mirpur, Dhaka. The present investigation will enrich the knowledge on uses and documentation of lichen flora in Bangladesh.

Methodology:

National Botanical Garden is divided into 57 sections and is managed by Forest Department under the Ministry of Environment and Forests, Government of Bangladesh. Lichen was collected from 15 blocks among 57 blocks. Twenty-four observations were made with an interval of 15 days. Collection of Lichen was followed by May (2000). D3200 Nikon DSLR camera was used for spot photography; Euro sCMEX scientific camera and Nikon Optiphot-2 compound trinocular microscope were used to shoot anatomical features and mycobiont structure. Morphological identification was done according to McFarlin and Melinda (1991); Albert (1998) and Thomas (2008). Components of a lichen react with certain test chemicals to give color reactions which assist in the identification of a species. Chemical identification of collected lichen samples has been done according to the method described by Orange et al. (2001). Anatomy of Parmelia carried out by following Richardson (1960). Fungi associated with the lichen were isolated separately following the Tissue planting method (CAB 1968).

Source of Information: Bangladesh J. Plant Taxon. 27(2): 447-451, 2020 (December)

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Six genera of lichen were recorded in National Botanical Garden Mirpur, Dhaka. They are Cladonia, Cryptothecia, Herpothallon, Parmelia, Pertusuria and Usnea. Among the 57 blocks lichen was recorded from 15 blocks of the garden. Identification was done by both morphological and chemical tests.

Knowledge Management: Journal