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Agrostis stolonifera

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Agrostis stolonifera (creeping bentgrass, creeping bent, fiorin, spreading bent, carpet bentgrass or redtop<ref name= plants/><ref name= grin>Germplasm Resource Information Network Retrieved 2010-03-16.</ref><ref name= feis>USDA Forest Service Fire Effects Information System Retrieved 2010-03-16.</ref>) is a perennial grass species in the Poaceae family.



Agrostis stolonifera is stoloniferous and may form mats or tufts. The prostrate stems of this species grow to Template:Convert long with Template:Convert long leaf blades and a panicle reaching up to Template:Convert in height.

The ligule is pointed and up to Template:Convert long. This differs from common bent, Agrostis capillaris, which is short and does not come to a point.

The leaves are tapering, often with a blue-grey colour. The grass is not tufted and the spikelets are red and tightly closed within the panicle.<ref>BSBI Description retrieved 2010-11-16.</ref> It flowers in July and August.

ligule is pointed up to 5mm long
leaf blade


It can be found growing in a variety of habitats including woodlands, grasslands and meadows, wetlands, riparian zones, and as a pioneer species on disturbed sites.<ref name= feis/> It is native to Eurasia and North Africa (Algeria, Morocco and Tunisia). It is possible that it may also be to native to northern parts of North America, and in any case it has been widely introduced and naturalised on that continent and in many other places.<ref name= grin/>

It is a constituent of wet habitats such as marshy grasslands. Some of its species have adapted to contaminated conditions and can cope with heavy metals. It can exist up to Template:Convert.<ref>Template:Cite book</ref>


It is the most commonly used species of Agrostis.<ref>Template:Cite web</ref>

The ability of creeping bentgrass to remain palatable and green in the summer is valued for livestock forage; it also provides good cover for upland game birds and waterfowl. It is used for turf in gardens and landscapes, particularly on golf courses.<ref name= feis/> The majority of the putting greens in the USA are creeping bentgrass.

It is also a transgenic crop developed for commercial purpose; the first wind-pollinated and non alimentary herbacea genetically modified. A 2004 gene flow study (with scientific sampling methods) documents gene flow on a landscape level, with a maximum at Template:Convert and Template:Convert (respectively) in sentinel and resident plants observed by scientist, located in primarily nonagronomic places.<ref name=AStolonifPollens2004>Template:Cite journal</ref>

The transgenic creeping bentgrass (Penn A-4 ) overexpressing Avp1 shows improved resistance to salinity stress compared to wild-type controls. The improved performance of the transgenic plants was associated with higher relative water content, higher sodium uptake and lower solute leakage in leaf tissues, with higher concentrations of Na+, K+, Cl- and total phosphorus in root tissues, and with higher auxin accumulation rate in the root tissue. This transgenic plant can survive in the presence of 1.7% sodium chloride (half seawater salinity concentration), while the non transgenic line and wild type plants cannot.<ref>ZHIGANG LI, Christian M. Baldwin, Qian Hu, Haibo Liu, Hong Luo (2010). Heterologous Expression of Arabidopsis H+-PPase Enhances Salt Tolerance in Transgenic Creeping Bentgrass (Agrostis stolonifera L.). Plant, Cell and Environ, Volume 33 Issue 2, P. 272–289.</ref>



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