The swarmer cycle of Hyphomicrobium neptunium consists of a temporal sequence of discrete developmental events. To time morphogenesis and to investigate modulations in macromolecular synthesis, we attempted methods for synchronous culture. During synchrony, swarmer maturation occurred over 32%, hyphal growth occurred over 36%, and bud maturation occurred over 32% of the time required to complet...

Triploid plants of neem were obtained by immature endosperm culture. Immature seeds, at the early dicotyledonous stage of embryo development, is the best explant to raise endosperm callus on MS + NAA (5 mumol/L) + BAP (2 mumol/L) + CH (500 mg L-1). Maximum shoot bud differentiation from the endosperm callus occurred on MS + 5 mumol/L BAP. Shoots were multiplied by forced axillary branching and ...

In budding yeast, the mitotic spindle moves into the neck between the mother and bud via dynein-dependent sliding of cytoplasmic microtubules along the cortex of the bud. How dynein and microtubules interact with the cortex is unknown. We found that cells lacking Num1p failed to exhibit dynein-dependent microtubule sliding in the bud, resulting in defective mitotic spindle movement and nuclear ...

BACKGROUND COPD patients have a higher risk of pneumonia when treated with fluticasone propionate (FP) than with placebo, and a lower risk with budesonide (BUD). We hypothesized that BUD and FP differentially affect the mucosal barrier in response to viral infection and/or cigarette smoke. METHODS We assessed protective effects of equivalent concentrations of BUD and FP on cytokine production...

Functional implications of the recently described fatty acid conjugation of budesonide (BUD) (Tunek, A., K. Sjödin, and G. Hallström, Drug Metabol. Dispos. 1997;25:1311-1317; Miller-Larson, A., E. Hjertberg, H. Mattsson, M. Dahlbäck, A. Tunek, and R. Brattsand, Am. J. Respir. Crit. Care Med. 1997;155:A353 [Abstr.]) were studied in a rat cell line, Rat1, transfected with the activation protein-1...

Mitochondria accumulate at neuronal and immunological synapses and yeast bud tips and associate with the ER during phospholipid biosynthesis, calcium homeostasis, and mitochondrial fission. Here we show that mitochondria are associated with cortical ER (cER) sheets underlying the plasma membrane in the bud tip and confirm that a deletion in YPT11, which inhibits cER accumulation in the bud tip,...

BACKGROUND S. cerevisiae cells must grow to a critical size in G1 in order to pass start and enter the cell cycle. A recent study proposed that in addition to the mother size control in G1, the bud must grow to a critical bud size in G2 in order to enter mitosis. Insufficient bud size would cause G2 arrest enforced by the mitotic inhibitor Swe1p, explaining previous findings that some perturbat...

BACKGROUND Methods are needed for the conservation of clonally maintained trees of Populus and Salix. In this work, Populus trichocarpa and Salix genetic resources were cryopreserved using dormant scions as the source explant. OBJECTIVE We quantified the recovery of cryopreserved materials that originated from diverse field environments by using either direct sprouting or grafting. MATERIAL...

We assessed the effect of long-term treatment with inhaled budesonide (BUD) on the occurrence of posterior subcapsular cataracts (PSC), bruises and hoarseness in children with asthma. Slit lamp examinations were performed in 157 asthmatic children treated with inhaled BUD at a mean daily dose of 504 microg (range 189-1,322 microg) for 3-6 yrs (mean 4.4 yrs). Measurements were compared with 111 ...