Agrostis stolonifera

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Agrostis stolonifera
Agrostis Wuchs.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Subfamily: Pooideae
Genus: Agrostis
Species:
A. stolonifera
Binomial name
Agrostis stolonifera
L., 1753
Synonyms [2]
List
    • Agrostis adscendensLange
    • Agrostis albaL. var. palustris(Huds.) Pers.
    • Agrostis albaL. var. stolonifera(L.) Sm.
    • Agrostis capillarisPollich
    • Agrostis filifoliaLink
    • Agrostis karsensisLitv.
    • Agrostis maritimaLam.
    • Agrostis palustrisHuds.
    • Agrostis stoloniferaL. subsp. prorepensKoch
    • Agrostis stoloniferaL. var. compacta Hartm.
    • Agrostis stoloniferaL. var. palustris(Huds.) Farw.
    • Agrostis stolonizansSchult. & Schult. f.
    • Agrostis stramineaHartm.
    • Agrostis zeroviiKlokov

Agrostis stolonifera (creeping bentgrass, creeping bent, fiorin, spreading bent or carpet bentgrass [2] [3] [4] ) is a perennial grass species in the family Poaceae. It is widely used as turf for golf courses. [5]

Contents

Description

Agrostis stolonifera is stoloniferous and may form mats or tufts. The prostrate stems of this species grow to 0.4–1.0 metre (1 ft 4 in – 3 ft 3 in) long with 2–10-centimetre (0.79–3.94 in) long leaf blades and a panicle reaching up to 40 cm (16 in) in height.

The ligule is pointed and up to 5 millimetres (0.20 in) 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. [6] It flowers in July and August.

ligule is pointed up to 5mm long Agrostis ligula.jpg
ligule is pointed up to 5mm long
leaf blade Agrostis Blatt.jpg
leaf blade

Distribution

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. [4] It is native to Eurasia and North Africa (Algeria, Morocco and Tunisia). It is possible that it may also be 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. [3]

It is a constituent of wet habitats such as marshy grasslands. Some of its species[ clarification needed ]have adapted to contaminated conditions and can cope with heavy metals. It can exist up to 2,500 feet (760 m). [7]

Cultivation

It is the most commonly used species of Agrostis . [8]

It is used for turf in gardens and landscapes, particularly on golf courses. [4] Many of the putting greens as well as an increasing number of fairways in the northern USA are creeping bentgrass.

Transgenic varieties

In the 1990s, Scotts Miracle-Gro and Monsanto led early work in creeping bentgrass transgenics looked at glyphosate-resistance. However, due to easy wind pollination, seeds were accidentally dispersed from an experimental farm in Oregon in 2003. Scotts Miracle-Gro was fined $500,000 as a result. [9] In 2017, the USDA agreed not to regulate it at Scotts request, which meant that Scotts "will no longer be legally required to pay to clean up the grass after 2017, though it has promised to do so." [10] A 2004 gene flow study (with scientific sampling methods) documents gene flow on a landscape level, with a maximum at 21 kilometres (13 mi) and 14 km (8.7 mi) (respectively) in sentinel and resident plants observed by scientist, located in primarily nonagronomic places such as irrigation ditches. [11]

Other work in transgenic bentgrass looks into salinity tolerance. 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. [12]

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<i>Agrostis capillaris</i> Species of grass

Agrostis capillaris, the common bent, colonial bent, or browntop, is a rhizomatous and stoloniferous perennial in the grass family (Poaceae). It is native to Eurasia and has been widely introduced in many parts of the world. Colonial bent grows in moist grasslands and open meadows, and can also be found in agricultural areas, roadsides, and invading disturbed areas.

<i>Agrostis exarata</i> Species of grass

Agrostis exarata is a species of grass known by the common names spike bentgrass, spike bent, Pacific bentgrass, and spike redtop. It is native to western North America from Texas to the Aleutian Islands.

<i>Hordeum brachyantherum</i> Species of grass

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<i>Agrostis microphylla</i> Species of flowering plant

Agrostis microphylla is a species of grass known by the common name small-leaf bentgrass. It is native to western North America from the Aleutian Islands to Baja California in Mexico, where it grows along coastal cliffs, on serpentine mountain slopes, and in vernal pools.

<i>Agrostis gigantea</i> Species of grass

Agrostis gigantea, known by its common names black bent and redtop, is a perennial grass of the Agrostis genus.

<i>Agrostis blasdalei</i> Species of flowering plant

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<i>Agrostis scabra</i> Species of grass

Agrostis scabra is a common species of grass known by the common names hair grass, rough bent, rough bent grass, winter bent grass, and ticklegrass. A tumbleweed, it is a bunchgrass native to Asia and much of North America, and widely known elsewhere as an introduced species.

<i>Agrostis perennans</i> Species of grass

Agrostis perennans, the upland bentgrass, upland bent, or autumn bent, is a species of flowering plant in the grass family, Poaceae.

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<span class="mw-page-title-main">Salt pannes and pools</span> Water retaining depressions located within salt and brackish marshes

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<i>Agrostis canina</i> Species of grass

Agrostis canina, the velvety bentgrass, brown bent or velvet bent, is a species of grass in the family Poaceae.

<i>Agrostis vinealis</i> Species of grass

Agrostis vinealis is a species of grass known by the common names brown bentgrass and brown bent, which can be found from Russia to Mongolia, China, Pakistan, India and Alaska. It was introduced to Greenland and South Georgia and the South Sandwich Islands.

<i>Agrostis humilis</i> Species of grass

Agrostis humilis is a species of grass known by the common names of mountain bent grass and alpine bentgrass, which can be found in Western United States and Canada.

References

  1. Lansdown, R.V. (2014). "Agrostis stolonifera". IUCN Red List of Threatened Species . 2014: e.T164020A42383133. doi: 10.2305/IUCN.UK.2014-1.RLTS.T164020A42383133.en . Retrieved 19 November 2021.
  2. 1 2 USDA, NRCS (n.d.). "Agrostis stolonifera". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 2010-03-16.
  3. 1 2 "Agrostis stolonifera". Germplasm Resources Information Network . Agricultural Research Service, United States Department of Agriculture . Retrieved 2010-03-16.
  4. 1 2 3 Esser, Lora L. (1994). "Agrostis stolonifera". Fire Effects Information System (FEIS). US Department of Agriculture (USDA), Forest Service (USFS), Rocky Mountain Research Station, Fire Sciences Laboratory. Retrieved 2010-03-16.
  5. Elmore, Matthew T.; Brosnan, James T.; Armel, Gregory R.; Vargas, Jose J.; Breeden, Gregory K. (2015). "Influence of Herbicide Safeners on Creeping Bentgrass ( Agrostis stolonifera ) Tolerance to Herbicides". Weed Technology. 29 (3): 550–560. doi:10.1614/WT-D-14-00045.1. S2CID   86197665.
  6. BSBI Description Archived 2011-07-17 at the Wayback Machine retrieved 2010-11-16.
  7. C. E. Hubbard (1978). Grasses. Penguin Books. ISBN   9780140132274.
  8. L. Watson; M. J. Dallwitz (2008). "The grass genera of the world: descriptions, illustrations, identification, and information retrieval; including synonyms, morphology, anatomy, physiology, phytochemistry, cytology, classification, pathogens, world and local distribution, and references". The Grass Genera of the World. Archived from the original on 2008-07-24. Retrieved 2009-08-19.
  9. Notarianni, John (July 21, 2018). "How A Botched Experiment Sent GMO Grass Creeping Across Oregon". OPB. Retrieved 29 November 2022.
  10. Main, Douglas (January 17, 2017). "USDA Agrees to Not Regulate Genetically Modified Grass On the Loose In Oregon" . Retrieved 29 November 2022.
  11. Lidia S. Watrud; E. Henry Lee; Anne Fairbrother; Connie Burdick; Jay R. Reichman; Mike Bollman; Marjorie Storm; George King & Peter K. Van de Water (2004). "Evidence for landscape-level, pollen-mediated gene flow from genetically modified creeping bentgrass with CP4 EPSPS as a marker". Proceedings of the National Academy of Sciences . 101 (40): 14533–14538. Bibcode:2004PNAS..10114533W. doi: 10.1073/pnas.0405154101 . PMC   521937 . PMID   15448206.
  12. 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.