Fereshteh Heidargholinejad, Hossein Moradi, Mahnaz Karimi, Vahid Akbarpour,
Volume 6, Issue 2 (8-2019)
Abstract
Purslane (Portulaca oleracea L.) contains valuable secondary metabolites such as Dopamin, Noradrenaline and Omega-3. This plant is used in various medicinal, food and hygienic industries as well as the treatment of different diseases such as diabetes, heart disease and pain relief. Callus induced from medicinal plants are used to increase the production of secondary metabolities in cell suspension culture and gene transfer. The purpose of this experiment was the study of different concentrations of BAP and 2,4-D of two explants from leaf and shoot tips to produce callus. Leaf and shoot tip explants were used in MS with different concentrations of BAP at three levels (0, 1 and 2 mg/L) with 2,4-D at three levels (0, 0.5 and 1.5 mg/L). Results showed that interactions between hormones and explants were significant in the percentage of callus induction, fresh weight and callus diameter at 1% level. The best result which was the leaf explant with 100% callus induction, 121 mg fresh weight and 5.106 mm callus diameter was obtained by the combination of BAP 2 mg/L and 2,4-D 0.5 mg/L. Shoot tip explants with 75% callus induction, 106 mg fresh weight and 3.03 mm diameter was obtained by the application of 1 mg/L BAP and 0.5 mg/L 2,4-D.
Mr. Majid Askari Hesni, Mr. Mahdi Iranmanesh, Mrs Somayeh Zangiabadi, Mr. Mohammad Hashemabadi, Mr. Morteza Akbarpour, Mr. Mahmmood Sinaei, Mr. Mohammad Talebi Matin, Mr. Mehdi Bolouki-Kourandeh, Mr. Mohammad Sadegh-Saba, Mrs Nasrin Zare,
Volume 13, Issue 1 (4-2026)
Abstract
Ecosystems conservation requires knowing and monitoring habitats and study on their species. This goal is achieved when there is a suitable understanding of the current state of the environment and the living conditions of the species. In the present study, the distribution and biometry of adult and hatchlings of hawksbill turtles were investigated on Hendorabi Island, from March 2017 to July 2018. After observing turtles, species identification, biometry of adults including CCL and CCW and egg biometry including diameter and weight were measured. During this study, 28 turtles were examined biometrically. Some areas in the north and south of Hendorabi were identified as high-density nesting areas, while eastern part of the island was low-density nesting area. The average of CCL and CCW of the turtles were measured 70.38±3.27 and 64.84±2.53cm, respectively. On average, 87.6±21.7 eggs were laid per nest, and the highest and lowest numbers of eggs were recorded 110 and44, respectively. The number of normal and abnormal eggs were 74.2±9.02 and 13.6±5.81, respectively. Normal and abnormal eggs have an average diameters of 38.66±2.02 and 24.87±4.43mm and weights of 32.69±4.27 and 11.21±6.26gr respectively. In conclusion the hawksbill turtles of Hendorabi are smaller than those of other parts of the world.
