sugar type and growth regulators are essential fundamental components of tissue culture media. in this study, different concentrations of some carbohydrate and growth regulators during anther culture and producing somatic embryo of datura stramonium l. was investigated in ms medium. the ms medium supplemented with 0.5 mgl-1 kinetin and 2 mgl-1 2,4-d, and also the medium supplemented with 0.25 m...

background: addition of amino acids to the culture medium is beneficial for embryonic development in many species. objective: the objective of this study was to investigate the effects of amino acids on the in vitro maturation and embryonic development of the bovine oocyte. materials and methods: bovine ovaries were collected from a local abattoir and brought into laboratory. cumulus-oocyte com...

Results are presented for our search for warm-hot gas towards the quasar Q 0329−385. We identify ten Ovi systems of which two are within 5000 km s of zem and a third one should be of intrinsic origin. The seven remaining systems have H i column densities 10≤N(H i)≤10 cm. At least ∼1/3 of the individual Ovi sub-systems have temperatures T<1×10 K and cannot originate in collisionally ionized gas....