Due to drought, low soil fertility, little rain fall, elevated levels of evapotranspiration, salinization the and a lack ground water, problem desertion agricultural areas has developed in KSA recent years (e.g. Tabuk region). In Saudi Arabia, land abandonment’s negative impact on composition perennial vegetation, quality, structure population was investigated. several abandoned fields research...

Recent molecular phylogenetic studies of Camphorosmoideae (Chenopodiaceae) demonstrated that Camphorosma is monophyletic. Palynomorphological peculiarities are used in taxonomy as additional diagnostic features and pollen analysis. Pollen morphology was studied using light scanning electron microscopy, based on 13 specimens belonging to four species (C. annua, C. lessingii, monspeliaca songoric...

Abstract Amorphous silica, a specialised silicate adsorbent is extensively extracted from agricultural residues for application in various environmental domains. Wheat straws are rich source of silica that have earlier been overlooked however demand value addition. The study presents an innovative approach to extracting wheat straw and standardising the extraction process produce clean product....

Background & Aim: Satureja khuzistanica Jamzad. is an aromatic and medicinal perennial plant belongs to family mint (Lamiaceae). It is also an Iranian exclusive endemic species, its essential oil components are widely used in medicinal, culinary, and perfume industries. Experimental: Flowers were collected in 10 regions in Khuzistan and Lorestan provinces, Iran at early anthesis durin...

We have made a wide phylogenetic survey of Pix proteins, which are constituents of vertebrate centrioles in most eukaryotes. We have also surveyed the presence and structure of flagella or cilia and centrioles in these organisms, as far as is possible from published information. We find that Pix proteins are present in a vast range of eukaryotes, but not all. Where centrioles are absent so are ...

INTRODUCTION Aristolochia belongs to the family Aristolochiaceae. In the indigenous system of medicine, the plant was used for the treatment of skin diseases, inflammation and purgative. Root extract was reported to have anti bacterial activity. A perennial climber shrub with woody base stocks. Leaves simple, alternate, entire, with undulate margins, acute; flowers greenish white, in auxiliary ...

Foliar and petiole micro-morphological characteristics of some members the genus Vernonia namely; amygdalina Del. (bitter variety), (non-bitter cinerea (L) Less., galamensis (Cass.) adoensis Sch. Bip. in Jos, Nigeria was investigated to provide additional characters support existing taxonomic information regarding species. Epidermal peels fresh leaves were made transverse sections petioles cut ...

background & aim: satureja khuzistanica jamzad. is an aromatic and medicinal perennial plant belongs to family mint (lamiaceae). it is also an iranian exclusive endemic species, its essential oil components are widely used in medicinal, culinary, and perfume industries. experimental: flowers were collected in 10 regions in khuzistan and lorestan provinces, iran at early anthesis during 2009...