Ulva lactuca

Ulva lactuca

1. Prepared by Muhammad Shoaib

2. Ulva Contents Scientific Classification Introduction Distribution Structure of Ulva Thallus Life cycle of Ulva Economic Importance References 3

3. Ulva Scientific classification Kingdom : Plantae Phylum : Chlorophyta Class : Ulvophyceae Order : Ulvales Family : Ulvaceae Genus : Ulva Scientific Name: Ulva Lactuca 4

4. Ulva Introduction Ulva lactuca , is green to dark green in colour also known by the common name sea lettuce. Sea-lettuce is a green seaweed of rocky shores of all the sea's and oceans. This is an incredible fast growing seaweed, reaching a growth rate of 40% a day in optimal conditions. Distribution: The distribution is worldwide: Europe, North America (west and east coasts), Central American, Caribbean Islands, South America, Africa, Indian Ocean Islands, South-west Asia, China, Pacific Islands, Australia and New Zealand.

5. Ulva Structure Ulva lactuca  is a thin flat green algae growing from a discoid holdfast. The membrane is two cells thick, soft and translucent, and grows attached, without a stipe, to rocks or other algae by a small disc-shaped holdfast.

6. Ulva Thallus The thallus, which somewhat resembles a lettuce leaf, is a sheet of cells up to 30 cm (12 inches) long and two cells thick and is embedded in a tough gelatinous sheath. The holdfast, which anchors the alga to its substrate, is disk like.  The dark green part is the large chloroplast, the single cup-shaped cell organ that converts solar light into energy.

7. Fig: Life Cycle of Ulva

8. Ulva Economic Importance Can be used to treat goiter Reduce fever Ease pain Induce urination Remove heavy metals from brackish wastewater It is rich in iodine and in vitamins A, B, and C and is used in salads and soups in parts of northern Europe, Japan, and China

9. References https://en.wikipedia.org/wiki/Ulva_lactuca http://formosa.ntm.gov.tw/seaweeds/english/e/e3_01.asp http://www.waterwereld.nu/ulva.php https://www.google.com/search?q=life+cycle+of+ulva+lactuca& sxsrf =ACYBGNRB_mOVU5S8eYKOMWlCsuhtWUnMQA:1572801619613&source= lnms&tbm = isch&sa = X&ved =0ahUKEwiPhtvOxs7lAhUxmVwKHVoyDrMQ_AUIEigB&biw=1366&bih=625#imgrc=zwD7uhR0x2_moM: