Transgenic tobacco plants expressing fungal copper and zinc transporter genes show enhanced acquisition of copper and zinc
نویسنده
چکیده
Copper (Cu) and zinc (Zn) are micronutrients essential for growth and differentiation of all organisms, but are often deficient in human diet. In the present study, transgenic tobacco plants expressing two fungal genes namely a copper transporter (tcu-1) and a zinc transporter (tzn1) gene from Neurospora crassa were developed and the plants showed enhanced acquisition of Cu and Zn respectively compared to wild-type plants.
منابع مشابه
BoALMT1, an Al-Induced Malate Transporter in Cabbage, Enhances Aluminum Tolerance in Arabidopsis thaliana
Aluminum (Al) is present in approximately 50% of the arable land worldwide and is regarded as the main limiting factor of crop yield on acidic soil. Al-induced root malate efflux plays an important role in the Al tolerance of plants. Here, the aluminum induced malate transporter BoALMT1 (KF322104) was cloned from cabbage (Brassica oleracea). BoALMT1 showed higher expression in roots than in sho...
متن کاملInfluence of Copper and Zinc on Growth, Metal Accumulation and Chemical Composition of Essential Oils in Sweet Basil (Ocimum basilicum L.)
Background: Biosynthesis and metabolism of phytochemicals in medicinal and aromatic plants are vigorously affected by different abiotic elicitors including chemicals. Objective: This experiment was designed to investigate the effects of three levels of copper sulfate (Cu: 0, 5, 25 mg kg-1) and zinc sulfate (Zn: 0, 10, 50 mg kg-1) and their combinations on yield, chemical compositions of esse...
متن کاملOverproduction of petunia chloroplastic copper/zinc superoxide dismutase does not confer ozone tolerance in transgenic tobacco.
Transgenic tobacco (Nicotiana tabacum cultivar W38) plants that overproduce petunia chloroplastic Cu/Zn superoxide dismutase were exposed to ozone dosages that injure control tobacco plants. Based on foliar injury ratings, there was no consistent protection provided to the transgenic plants. These data indicate that an increase in the chloroplastic Cu/Zn superoxide dismutase alone is not suffic...
متن کاملYellow stripe1. Expanded roles for the maize iron-phytosiderophore transporter.
Graminaceous monocots, including most of the world's staple grains (i.e. rice, corn, and wheat) use a chelation strategy (Strategy II) for primary acquisition of iron from the soil. Strategy II plants secrete phytosiderophores (PS), compounds of the mugineic acid family that form stable Fe(III) chelates in soil. Uptake of iron-PS chelates, which occurs through specific transporters at the root ...
متن کاملThe Arabidopsis copper transporter COPT1 functions in root elongation and pollen development.
Copper plays a dual role in aerobic organisms, as both an essential and a potentially toxic element. To ensure copper availability while avoiding its toxic effects, organisms have developed complex homeostatic networks to control copper uptake, distribution, and utilization. In eukaryotes, including yeasts and mammals, high affinity copper uptake is mediated by the Ctr family of copper transpor...
متن کامل