Fungal endophytes and their grass hosts have attracted growing research interest as systems in which to examine the ecological and evolutionary consequences of maternally inherited symbioses. The lion’s share of research for these endophytic symbioses has been focused on Neotyphodium endophytes in three introduced agronomic grasses (but especially one, tall fescue; see Faeth and Saikkonen 2007;...

Mutual relationship between endophytic fungi and some gramineuos plants is one of the recently known host-microbe interactions. Endophytic fungi are classified in class Ascomycetes, order Hypocreales, tribe Balansieae and mostly genus Neotyphodium. They are transferred into the progeny via maternal stock and have many benificial effects to their host plants, such as resistance to pests and dise...

Globally, C4 plants dominate hot, open environments, but this general pattern is underpinned by important differences in the biogeography of C4 lineages. In particular, the species richness of C4 Poaceae (grasses) increases strongly with increasing temperature, whereas that of the major C4 eudicot group Chenopodiaceae correlates positively with aridity. Freezing tolerance is a crucial determina...

Effective comparisons of natural grasslands and improved pasture require a robust model for plant growth, soil water balance, runoff, soil erosion, and climatic impacts. Our first objective was to develop plant parameters in the field that enabled the ALMANAC model to simulate growth of coastal bermudagrass [Cynodon dactylon (L.) Pers.]. Pensacola bahiagrass (Paspalum notatum Flügge var saurae ...

Glutathione S-transferases (GST) form a large family of non-photosynthetic enzymes known to function in detoxification of xenobiotics. We have cloned and characterized a novel, low temperature regulated GST, Solanum commersonii glutathione S-transferase (Scgst1), from a cold acclimated wild potato species S. commersonii and studied the level of its transcription in freezing tolerant and sensiti...

Background. Environmental pollution with toxic compounds poses a danger to nature and humans. Various technologies for soil purification from metals are being developed. Objective. The work was aimed study the possibility of lawn grass using Cr(VI). Methods. Plant seeds (Festuca rubra L. 45%, Festuca arundinacea Schreb. 25%, Lolium perenne 20%, Poa pratensis 10%) were sown in container at 24 °C...

Four weed species (Bromus mollis, Vulpia sp., Poa annua, Steltaria media) occur in 30% or more of all perennial ryegrass seed samples. Of the listed undesirable species, Avena fatua (wild oat) and Hordeum murinum occurred respectively in 5.3 and 3.5% of ryegrass seedlots. Only 6 herbicides are registered for use in grass seed crops in New Zealand, 2 for wild oat, and 4 for broadleaved weeds. Th...

Bu çalışma, Orta Karadeniz Bölgesi doğal florasından toplanan domuz ayrığı (Dactylis glomerata ssp.), kamışsı yumak (Festuca arundinaceae ssp.) ve ak üçgül (Trifolium repens popülasyonlarının çekirdek DNA içeriklerinin flow sitometri yöntemiyle belirlenmesi ploidi analizi ile tür teşhisinde kullanılması amacıyla yürütülmüştür. Proje kapsamında üçgülden mera tipi 80, ayrığından ot 80 yumaktan ot...