Due to the complexity of biochemical reaction networks, socalled complexity reduction algorithms play a crucial role for making simulations efficient and for dissecting biochemical networks into meaningful subnetworks for analysis. Here, different approaches are presented, which we are developing in the context of a computational research environment for systems biology (SYCAMORE). These approa...

Abstract American sycamores ( Platanus occidentalis L.) are found in many ecosystems and planted urban landscapes worldwide. The trees highly susceptible to anthracnose canker pathogens, causing leaf blight branch dieback. On Ohio State University campus Columbus, Ohio, an sycamore was observed thrive among symptomatic sycamores. healthy tree, subsequently protected as cultivar ‘Davis,’ vegetat...

ABSTRACT The Ceratocystis fimbriata complex includes many undescribed species that cause wilt and canker diseases of many economically important plants. Phylogenetic analyses of DNA sequences have delineated three geographic clades within Ceratocystis fimbriata. This study examined host specialization in the Latin American clade, in which a number of lineages were identified using sequences of ...

Incubation of amyloplasts isolated from cultured cells of sycamore (Acer pseudoplatanus L.) with [gamma-(32)P]ATP resulted in the rapid phosphorylation (half-time of 40 seconds at 25 degrees Celcius) of organellar polypeptides. The preferred substrate for amyloplast protein kinases was Mg(2+). ATP, and recovery of only [(32)P]serine after partial acid hydrolysis indicated the predominance of pr...

Osama S. Aboul-Magd draft-bala-mpls-optical-uni-signaling-00.txt Nortel Networks Expiration : Jan, 14, 2001 Olga Aparicio Cable & Wireless USA Rick Barry Sycamore Networks Greg Bernstien Ciena Raj Jain Nayna Networks LiangYu Jia Rajiv Dulepet ONI Systems Monica Lazer Jennifer Yates AT&T Dimitrios Pendarakis Bala Rajagopalan Tellium, Inc. Robert Rennison Laurel Networks Yangguang Xu Lucent Techn...

The effects of iron deficiency on cell culture growth, cell respiration, mitochondrial oxidative properties, and the eledron transport chain were studied with suspension-cultured sycamore (Acer pseudoplatanus 1.) cells. lron deprivation considerably decreased the initial growth rates and limited the maximum density of the cells. Under these conditions, the cells remained swollen throughout thei...

Arizona sycamore (Platanus wrightii: Platanaceae) is a riparian tree of the southwestern United States and adjacent Mexico. It is failing to reproduce in certain canyons where mature, seed-producing trees of this species occur. Three hypotheses were tested to explain this reproductive failure: I) the presence of domestic cattle prevents reproduction, 2) seeds produced in certain canyons are inv...

Nitrification in the hyporheic zone of Sycamore Creek, a Sonoran Desert stream, was examined, focusing on the association between respiration and nitrate production. Subsurface respiration in Sycamore Creek is highest in regions of hydrologic downwelling where organic matter derived from the stream surface is transported into the hyporheic zone. Similarly, nitrification was closely related to h...

In organello starch biosynthesis was studied using intact chloroplasts isolated from spinach leaves (Spinacia oleracea). Immunoblot analysis using a specific antiserum against the mitochondrial adenylate (ADP/ATP) translocator of Neurospora crassa shows the presence of an adenylate translocator protein in the chloroplast envelope membranes, similar to that existing in mitochondria and amyloplas...