Ülkemizin önde gelen uçucu yağ ve aromatik bitkilerinden birisi olan defne (Laurus nobilis L.)’nin ekonomimizdeki yeri oldukça önemlidir. Yaprağından baharat, yağından sabun, parfüm vücut losyonu elde edilen bitkisi ilaç sanayinde de değerlendirilmektedir. Ayrıca tentür, çay yapımı aromaterapi amaçlı olarak da kullanılmaktadır. Antifungal antimikrobiyal özellikleri sayesinde gıda koruyucu değer...

A striking property of the mutualism between figs and their pollinating wasps is that wasps consistently oviposit in the inner flowers of the fig syconium, which develop into galls that house developing larvae. Wasps typically do not use the outer ring of flowers, which develop into seeds. To better understand differences between gall and seed flowers, we used a metatranscriptomic approach to a...

Flowering depends upon long-distance transport to supply water for reproductive mechanisms to function. Previous physiological studies suggested that flowers operated uncoupled from stem xylem transport and received water primarily from the phloem. We demonstrate that the water balance of Southern magnolia (Magnolia grandiflora) flowers is regulated in a manner opposite from that of previously ...

Behavior was altered and survivorship was reduced when parasitoids, Anagyrus pseudococci (Girault) (Hymenoptera: Encyrtidae), were fed flowers from buckwheat, Fagopyrum esculentum L. (Polygonaceae), treated with soil applications of imidacloprid (Marathon 1% G). Parasitoids at 1 d had significantly reduced survivorship of 38 +/- 6.7% on label rate and 17 +/- 4.2% on twice label rate compared wi...

Peucetia viridans (Hentz) lives almost exclusively on Croton ciliatoglandulifer (Ortega) in the dry forests of western Mexico. This spider is usually found on pubescent shrubs. Within their host plants, P. viridans has been associated with plant height and cover, as well as with number of flowers or inflorescences in anthesis. Flowers can be used as cues of good habitat conditions or because th...

Alfalfa (=lucerne) flowers require visiting bees to trip the sexual column, thereby providing pollination and subsequent pod and seed set. Previous studies have compared the pollination values of different bee species solely by the speed with which they handle flowers and the proportion of visited flowers tripped. In this greenhouse study, five species of bees, including the three commercially ...

For most angiosperms, producing and maintaining flowers is critical to sexual reproduction, yet little is known about the physiological processes involved in maintaining flowers throughout anthesis. Among extant species, flowers of the genus Calycanthus have the highest hydraulic conductance and vein densities of species measured to date, yet they can wilt by late morning under hot conditions. ...

Most plants are hermaphrodites, producing perfect flowers with both male and female functions. In roughly 6%of plants, however, male (usually XY) plants produce only male flowers and female (XX) plants produce only female flowers. Thesedioecious plants cannot self-pollinate, ensuring genetic diversity and facilitating the breeding process. In the dioecious diploid persimmon (Diospyros lotus), s...