Rate of regeneration of two arms in the field and its effect on body components in Luidia clathrata (Echinodermata: Asteroidea).

The first report of Asterodiscides fourmanoiri (Echinodermata: Asteroidea) from the North Coast of Oman Sea, Iran

Echinoderms with around 7,000 species can be found at all depths of the marine ecosystems. Body shape is radially symmetrical, covered by calcareous plates and five body parts are around a central axis. The class of Asteroidea (also known as starfish or sea star) is one of the most diverse groups within the phylum Echinodermata, including nearly 1900 extant species grouped into 36 families, and...

Timing of fission in the starfish Allostichaster capensis (Echinodermata: Asteroidea) in laboratory.

Timing of fission in the fissiparous starfish Allostichaster capensis under laboratory conditions is described. A. capensis generally splits across the disc along the fission plane during the spring, and then each half regenerates the missing arms during the rest of the year. The fission process can last eight hours. The healing process starts immediately after fission. A. capensis has impressi...

Short communication:The first report of Asterodiscides fourmanoiri (Echinodermata: Asteroidea) from the North Coast of Oman Sea, Iran

Effect of Explant, Type and Concentration of Hormone on Callus Induction and Regeneration of two Iranian Sesame (Sesamum indicum L.) Cultivars

Extended Abstract Introduction and Objective: Sesame is an ancient oilseed plant known for its medicinally important lignans and its high quality edible oil. ptimization of tissue culture in order to achieve high frequency regeneration is the first step for genetic transformation. the plant recalcitrant to plant tissue culture thus limiting the use of modern biotechnology for its genetic impro...

The effect of harvest intensities on reproduction rate of Salicornia herbacea L. (Case study: Gomishan lagoon, Gorgan)

The purpose of rangeland management is to preserve, rehabilitate, develop and sustainable use of rangeland resources, so that not to damage other rangeland resources, especially water and soil. For sustainable rangeland management, calculating rangeland capacity and determining the allowable utilization of key rangeland species is necessary. In this study, the effect of different harvest intens...