애기장대-Arabidopsis thaliana (L.) Heynh.

 

애기장대

 

 

 

일본 비에이 다쿠신칸 주변에서 본

 

애기장대?

 

자신이 없다.

 

Arabidopsis thaliana, the thale cress, mouse-ear cress or arabidopsis, is a small flowering plant native to Eurasia. A. thaliana is considered a weed; it is found by roadsides and in disturbed land.

A winter annual with a relatively short life cycle, A. thaliana is a popular model organism in plant biology and genetics. For a complex multicellular eukaryote, A. thaliana has a relatively small genome of approximately 135 megabase pairs (Mbp). It was the first plant to have its genome sequenced, and is a popular tool for understanding the molecular biology of many plant traits, including flower development and light sensing.

Arabidopsis thaliana is an annual (rarely biennial) plant, usually growing to 20–25 cm tall. The leaves form a rosette at the base of the plant, with a few leaves also on the flowering stem. The basal leaves are green to slightly purplish in color, 1.5–5 cm long and 2–10 mm broad, with an entire to coarsely serrated margin; the stem leaves are smaller and unstalked, usually with an entire margin. Leaves are covered with small, unicellular hairs (called trichomes). The flowers are 3 mm in diameter, arranged in a corymb; their structure is that of the typical Brassicaceae. The fruit is a siliqua 5–20 mm long, containing 20–30 seeds. Roots are simple in structure, with a single primary root that grows vertically downward, later producing smaller lateral roots. These roots form interactions with rhizosphere bacteria such as Bacillus megaterium.

A. thaliana can complete its entire lifecycle in six weeks. The central stem that produces flowers grows after about three weeks, and the flowers naturally self-pollinate. In the lab, A. thaliana may be grown in Petri plates, pots, or hydroponics, under fluorescent lights or in a greenhouse.

https://en.wikipedia.org/wiki/Arabidopsis_thaliana

 

과명	Cruciferae (십자화과)	속명	Arabidopsis (애기장대속)
전체학명	Arabidopsis thaliana (L.) Heynh. Fl. Sachsen 1 : 538 (1842)	추천명	애기장대
이명		외국명	シロイヌナズナ,Arabidopsis,Common mouse-ear cress

 

꽃색

분포

경기도 이남에서 자란다.

형태

2년생 초본

생육환경

들판, 산기슭이나 바닷가의 풀밭에 자란다.

크기

높이 15~35cm

잎

근생엽은 거꿀피침모양이고 모여나며옆으로 퍼지고 길이 2~4cm, 폭 3-15mm로서 가장자리에 희미한 톱니가 있고 양면에 2개로 갈라진 털이 있으며 줄기잎은 거꿀피침모양 또는 선형이고 드문드문 달리며 가장자리는 밋밋하다.

꽃

꽃은 4~5월에 피며 백색의 십자모양꽃부리고 총상꽃차례는 가지 끝과 원줄기 끝에서 서며 꽃받침조각은 타원형이고 길이 2mm로서 뒷면에 털이 있으며 꽃잎은 거꿀피침모양이고 길이 3-3.5mm이다.

열매

열매는 장각과로서 비스듬히 퍼지거나 곧추서며 길이 15-20mm, 지름 0.5mm이고 꽃자루는 열매일 때는 길이 6-8mm이다. 종자는 타원형이며 길이 0.5mm이고 가장자리가 둔하다.

줄기

높이 15-35cm이고 가지가 갈라지며 곧게 서고 털이 없다.

특징

전체에 털이 거의 없다.

http://www.nature.go.kr/kbi/plant/pilbk/selectPlantPilbkDtl.do#dtlInfo