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    • List of Articles Taher Nejadsattari

      • Open Access Article

        1 - Study on pollen grain and ovule developmental properties in Salvia verticillata L. collected from different regions of Iran
        maryam kameli Ahmad Majd Seyed Mohsen Hesamzadeh Hejazi Mehdi Mirza Taher Nejadsattari
        In botanical and taxonomical science embryological studies are specially important. In this research, developmental stages of pollen grains and ovules were studied in Salvia verticillata L of Lamiaceae family.The flower and buds in different developmental stages were re More
        In botanical and taxonomical science embryological studies are specially important. In this research, developmental stages of pollen grains and ovules were studied in Salvia verticillata L of Lamiaceae family.The flower and buds in different developmental stages were removed, fixed in FAA, stored in70% ethanol, embedded in paraffin and sliced with a microtome. Staining was done with Hematoxilin and Eosin. The prepared slides from different developmental stages were studied carefully using a light microscope. On the basis of this research results, ovule was anatropous, bitegumic and tenuinucellate. The development of the embryo sac followed the mono-sporic, polygonum type. After the meiosis, megaspore tetrads had linear arrangement. First, embryo sac was very small, so that its nuclei were compressed linearly but in maturation progress, embryo sac sustained longitude growth considerably. The anther was bisporangia. In S. verticillata, the tapetum was plasmodial and secretory with tetra- nucleate and bi-nucleate cells. In species microspore tetrads were observed with tetrahedral and tetragonal arrangement. Manuscript profile
      • Open Access Article

        2 - Study of anatomical structure of vegetative organs and developmental stages of generative organs of Asparagus officinalis L.
        fereshteh Abbasi Ahmad Majd farhad farahvash Taher Nejadsattari alireza tarinejad
        Asparagus officinalis L. belongs to the Asparagaceae family and it is monocotyledon. Its different species are used as anticancer, antifunji and anti inflammation. It is cultivated for medicinal, ornamentation, and food purposes. Target of this study focuses on the anat More
        Asparagus officinalis L. belongs to the Asparagaceae family and it is monocotyledon. Its different species are used as anticancer, antifunji and anti inflammation. It is cultivated for medicinal, ornamentation, and food purposes. Target of this study focuses on the anatomical structure of the vegetative organs and the flower developmental stage of Asparagus officinalis L. that collected from Dezful City. To study the vegetative organs including root, stem, leaf, and generative organs, vegetative and generative samples collected in different stages of development and investigated by the conventional methods of cellular - histology and the optical microscope in biotechnology laboratory of the University of Science and Researches, in 1395. Observation of vegetative organ structures showed that roots Vascular Cambium include pericycle, vascular bundles (Xylem, phloem) and pith. Central cylinder of stem, is an atactostel, and Vascular Bundles are scattered irregularly and are the uni-strain type. The ovules of this plant are anatropous and its embryo sac is Polygonum type. The pollen of this plant is monosulcate and the ornamentation of its exine is poriferous. The results of this study showed that the anatomical structure of the vegetative organs and the developmental stages of pollen and pistil of this plant is similar to the anatomical and developmental structure of the monocotyledons. Manuscript profile
      • Open Access Article

        3 - The study of characters and allergenicity of pollen of Conocarpus erectus L. in spring and autumn in Ahwaz.
        marjan javidan Ahmad Majd Taher Nejadsattari sedighe Arbabyan
        Cenocarpus erectus L. or Button mangrove is native to Bermuda, West Indies, and USA . It can withstand a range of ambient temperatures (15 ˚C - 50 ˚C) but appears to be slightly frost sensitive. The plants has been used from 2000 to the provinces of Ahwaz.The aim of thi More
        Cenocarpus erectus L. or Button mangrove is native to Bermuda, West Indies, and USA . It can withstand a range of ambient temperatures (15 ˚C - 50 ˚C) but appears to be slightly frost sensitive. The plants has been used from 2000 to the provinces of Ahwaz.The aim of this research studied allergenic properties pollen grains in Cenocarpus erectus L. in two different seasons spring and autumn. pollen grains from different regions of Ahwaz were studied and tissues organs by optical and scanning electron microscope. Pollens were collected and extracted in PBS. As an experimental model, 21 male Gina pigs were divided into three groups and Pollen extraction injected each 10 days. . NPT and OPT tests using spring and autumn crude extracts were also performed on pre-sensitized guinea pigs.The spring and autumn extracts induced IgE in blood, glucose level was tested and positive skin tests in Sensitized guinea pigs. Eight hours and one week after the blood samples were taken from guinea pigs. Autumn quantity is more than spring. SDS-PAGE analysis of autumn protein content showed apparent major bands ranging from 10,15,25,30 KD respectively.The skin test, clinical test, IgE, glucose level, showed different results in autumn and spring. Manuscript profile