Xenia


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Xenia

(zē`nēə), city (1990 pop. 24,664), seat of Greene co., SW Ohio; inc. 1814. It is a trade and industrial center in a farm area. The city has food-processing plants, and transportation equipment, plastics, and machinery are among its manufactures. The county historical museum is there. A tornado destroyed about half of the city on Apr. 3, 1974.

Xenia

 

a seed or fruit distinguished from other seeds or fruits of the same plant by its color, form, size, or other features.

The formation of xenias is the result of the influence of genes of the male parent on features of the endosperm (first order xenia) or on the surface of the seed and the seed cover (second order xenia, or metaxenia). The term was introduced by the German biologist W. Fokke (1881), although the phenomenon had been noted by many naturalists before then. Only after the discovery of double fertilization by the Russian botanist S. G.Navashin (1898) did it become clear that xenias were the result of the combination of a second sperm with the nucleus of the central cell of the embryonic sac (while the first combined with the egg cell).

Therefore, the dominant features of the endosperm cell of the male plant would appear in the endosperm of hybrid seeds formed in the female plant. For example, if a female corn plant has white “seeds” (that is, grains), which are determined by the color of the endosperm (a recessive homozygote), and the sperm introduces a dominant gene determining a yellow coloration of the seeds (a dominant homozygote), then the hybrid seeds will be yellow, or xenian. Metaxenias have been described for many plants, but the reason for their development is unclear.

References in periodicals archive ?
Xenia Hotels and Resorts is a self-advised and self-administered REIT that invests primarily in premium full service and lifestyle hotels, with a focus on the top 25 US lodging markets as well as key leisure destinations in the United States.
Nowadays it tends to be rich businessmen who treat themselves to a seat in Stalin's favorite box, Xenia tells us.
Cape Xenia is forecast to go off favourite, but with two or three big yards represented her price should hold up.
We felt we had to take it back to basics by getting single people in a room together where they can talk to each other," Xenia, 42, said.
Cars and debris lay strewn over Xenia, Ohio after a tornado ripped through the area the previous day.
Mum-of-one Xenia, aged 42, whose daughter is 19 years old, said that she had endured her fair share of false dawns and broken promises when it comes to the dating game, and like Sarah, especially over the internet.
Built around PacketFront Software Solution's BECS product family for network and service provisioning, the Xenia platform is a device connection and service delivery platform for M2M communication, which will be initially deployed in Radius' India network.
When her Latin teacher asks her to summarise the events that prompt Daedalus and Icarus to flee from Crete, seventeen year old Xenia Hadzithakis responds:
He currently works part-time as a phlebotomist at the Xenia Patient Service Center for CompuNet.
International Resource News-10 August 2010-Nighthawk Energy announces update for Xenia gas reserves(C)2010 ENPublishing - http://www.
3 million of Xenia Rural Water District bonds as part of its 19-month-old reinsurance agreement.
The murder took place a few minutes before midnight yesterday outside the house in Limassol's Kapsalos area where 50-year-old Xenia Timotheou, the suspect's daughter resides.