The nature and role of pigments of marine invertebrates.

نویسنده

  • Wickramasinghe M Bandaranayake
چکیده

Marine animals, especially those from tropical waters, are often brilliantly coloured, and bright colouration is widespread in both sessile and non-sessile invertebrates. These spectacular natural colours are common in species inhabiting shallow waters, and appear not only in animals exposed to bright light, but also in those living in dark areas where colours are visible only with artificial illumination. Marine organisms also show variation in colour with depth and geographical location, and display great variety in colour patterning. These colour characteristics are the result of several different processes, and serve various purposes - the distribution and function of pigments seems to vary between invertebrate groups. In addition to playing an important role in how marine organisms interact, pigments may be involved in physiological processes. Although nitrogenous pigments predominate, marine organisms contain pigments belonging to all the major structural classes of natural products, as well as some that are unique to the marine environment. This review discusses the nature and significance of such pigments, the chemical and biological processes involved, the factors responsible for and affecting bright colourations, as well as their evolution and speculation as to their function.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

P 93: The Role of Marine Compounds in Neuroinflammation

Extensive research in the last decade has defined that most chronic diseases display dysregulation of multiple cell signaling pathways that have been linked to inflammation. Neuroinflammation is reaction of living nervous tissue to injury. It may be initiated in response to neurological disease. Including infection, traumatic brain injury, toxic metabolites and autoimmunity. The natural compoun...

متن کامل

Conventional and Unconventional Antimicrobials from Fish, Marine Invertebrates and Micro-algae

All eukaryotic organisms, single-celled or multi-cellular, produce a diverse array of natural anti-infective agents that, in addition to conventional antimicrobial peptides, also include proteins and other molecules often not regarded as part of the innate defences. Examples range from histones, fatty acids, and other structural components of cells to pigments and regulatory proteins. These pro...

متن کامل

Evaluation of the cytotoxic effect of the Brittle Star (Ophiocomaerinaceus) dichloromethane extract and doxorubicin on EL4 cell line

Leukemia is a blood disease which is caused by the inhibition of differentiation and an increased proliferation rate. Nature has been known as a rich source of medically useful substances. High diversity of bioactive molecules extracted from marine invertebrates, makes them ideal candidates for cancer researches. The study has been done to investigate cytotoxic effects of dichloromethane brittl...

متن کامل

Morphological and structural characterization of blood cells of Anadara antiquata

Blood cells are key component of organism for their survival and has profound role in defence mechanism of invertebrates similarly in bivalve species, the key role is healing wound and nutrients transportation. The Anadara antiquata is unique because of haemoglobin in their haemolymph and it is commonly found in Pakistani coast.  Present investigation revealed three types of Blood cells, namel...

متن کامل

Evaluation of the cytotoxic effect of the Brittle Star (Ophiocomaerinaceus) dichloromethane extract and doxorubicin on EL4 cell line

Leukemia is a blood disease which is caused by the inhibition of differentiation and an increased proliferation rate. Nature has been known as a rich source of medically useful substances. High diversity of bioactive molecules extracted from marine invertebrates, makes them ideal candidates for cancer researches. The study has been done to investigate cytotoxic effects of dichloromethane brittl...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Natural product reports

دوره 23 2  شماره 

صفحات  -

تاریخ انتشار 2006