The floral quartet model proposes that plant MADS box proteins function as higher order tetrameric complexes. However, in planta evidence for tetramers remains scarce. Here, we applied a strategy using vivo fluorescence resonance energy transfer (FRET) based on the distance change and symmetry of stable complexes tobacco (Nicotiana benthamiana) leaf cells to improve accuracy estimation heterote...

this study was conducted to investigate the effects of in vitro and regeneration of lily (lilium longiflorum) bulb scale by different plant growth regulators in b5 medium in a completely randomized design with factorial arrangement and 4 replications. treatments consisted of indole-3-acetic acid (iaa) and 2,4-d in b5 medium in four concentrations (0, 0.5, 1, 2 mg/lit) and these were combined to...

TUDIES of the types of aberrations induced in chromosomes by irradiation S during the meiotic prophase have been infrequent. The complications introduced by synapsis and crossing over make the analysis much more difficult than is the case for mitotic divisions on which most of the work has been concentrated. However, in the assessment of radiation damage to genetic material, the differential se...

Fluxes of H+, K+ and Ca2+ were measured with self-referencing ion-selective probes, near the plasma membrane of growing Lilium longiflorum pollen tubes. Measurements from three regions around short, steady-growing tubes showed small, steady influx of H+ over the distal 40 microm and a region of the tube within 50-100 microm of the grain with larger magnitude efflux from the grain. K+ fluxes wer...

Two stage-specific genes have been isolated from a subtractive cDNA library constructed from developing anthers of Lilium longiflorum. Tandem 5ˊand 3ˊ-rapid amplifications of cDNA ends with polymerase chain reaction (5ˊand 3ˊ-RACE-PCR) were used to obtain the full length cDNA sequences. The LLA89 cDNA contained an open reading frame of 303 bp encoding an acidic polypeptide of 100 amino acids wi...