A complete micropropagation protocol was developed for Pistacia vera cv. Ghazvini, an important rootstock in Pistachio orchards in Iran. In present study, the efficiency of a new medium called GNH (Garoosi, Nezami and Haddad) was investigated against some standard media. Different vitamins, calcium (Ca) sources and plant growth regulators (PGRs) were tested on in vitro shoot multiplication and ...

The single and joint effects of chromium (Cr) and benzo (a) pyrene (B (a) P) on the seed germination and the elongation of root and shoot of Lolium perenne were investigated. Seed germination represents the first important step to effective phytoremediation. Young seedlings may be susceptible to PAH and heavy metal contaminants. The results showed that in solution, increasing concentration of C...

introduction: sulfur is the key element for higher crops and plays an important role in the formation of proteins, vitamins, and enzymes. it is a constituent of amino acids such as cysteine and methionine, which act for the synthesis of other compounds containing reduced sulfur, such as chlorophyll and utilization of phosphorus and otheressential nutrients.deficiency of this nutrient in soil is...

Neodymium (Nd) potentially pollutes environment for its wide usage in agriculture and industry. In this study, the chemical forms of Nd effect on rice shoots were studied after seedlings exposed with 0, 1, 10, 100 and1000 μM Nd. The higher concentration inhibited shoot growth, but lower induced growth. Six different present major insoluble phosphate oxalate content was further detected soluble ...

introduction: vermicompost is one of the important bio-fertilizer which is the product of the process of composting different organic wastes such as manures and crop residues using different earthworms. vermicomposts, especially those are derived from animal wastes,contain the large amounts of nutrients compaired with the composts prepared from crop residues. vermicomposts contain plant availab...

Iron (Fe) deficiency affects plant growth and development, leading to reduction of crop yields and quality. Although the regulation of Fe uptake under Fe deficiency has been well studied in the past decade, the regulatory mechanism of Fe translocation inside the plants remains unknown. Here, we show that a WRKY transcription factor WRKY46 is involved in response to Fe deficiency. Lack of WRKY46...

in order to investigate the effect of cd and zn on uptake, concentration and the translocation factor of the cd and zn in the rice plant, a factorial experiment was conducted with four factors including two rice cultivars of vandana and hashemi, two waterlogged and non-waterlogged conditions and three levels of zn and cd (0, 5 and 10 mg kg-1 soil). the experiment was carried out in a randomized...

Cesium (Cs) is chemically similar to potassium (K). However, although K is an essential element, Cs is toxic to plants. Two contrasting hypotheses to explain Cs toxicity have been proposed: (1) extracellular Cs+ prevents K+ uptake and, thereby, induces K starvation; and (2) intracellular Cs+ interacts with vital K(+)-binding sites in proteins, either competitively or noncompetitively, impairing...