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ビデオ・アーカイブを日本生物物理学会へ移管しました。
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ビデオ一覧

*本ページでは2018年3月31日時点で登録されていたビデオのみが表示されます

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アクセスランキング

2015.06.25

モデル(解説を含む)
べん毛のらせん形状:カーリー、CW 回転、多形変換

県立広島大学 生命環境学部 相沢 慎一

細菌べん毛はべん毛モーター反転のねじれの力、pH、塩濃度、温度などに応じて, Straight、 Normal、 Coiled、 Curly とらせん構造が変化する多形変換能を持つ。

2015.06.25

モデル(解説を含む)
べん毛のらせん形状:コイル、CCW 回転、多形変換

県立広島大学 生命環境学部 相沢 慎一

細菌べん毛はべん毛モーター反転のねじれの力、pH、塩濃度、温度などに応じて, Straight、 Normal、 Coiled、 Curly とらせん構造が変化する多形変換能を持つ。

2015.06.22

原核生物
Pseudomonas aeruginosa twitching motility YFP-PilU

種名:Pseudomonas aeruginosa
Department of Biochemistry and Biomedical Sciences, McMaster University Lori L. Burrows

Pseudomonas aeruginosa uses its type IV pili for twitching motility on surfaces. This strain carries a YFP fusion to one of three motor ATPases, PilU.

2015.06.22

原核生物
Pseudomonas aeruginosa PAO1 twitching on agar

種名:Pseudomonas aeruginosa
Department of Biochemistry and Biomedical Sciences, McMaster University Lori L. Burrows

Pseudomonas aeruginosa is an antibiotic resistant bacterium that causes hospital-related infections, especially in people with bad burns, in intensive care units, and people with the disease cystic fibrosis. This movie shows how it can quickly spread across surfaces in a matter of minutes. This movie consists of 150 frames captured over a 10 minute window (15 frames per minute). The movie was then recorded at 5 frames per second to show the motility of the bacteria. They are using their type IV pili to move along the surface between the agar and the glass coverslip, via twitching motility. Due to technical issues, the focus was maintained manually over the 10 min timeframe. Video made by Lori L. Burrows, PhD and Hosam Khalil, MSc in the McMaster Biophotonics Facility, McMaster University.

2015.06.22

原核生物
Pseudomonas aeruginosa PAO1 twitching motility

種名:Pseudomonas aeruginosa
Department of Biochemistry and Biomedical Sciences, McMaster University Lori L. Burrows

Pseudomonas aeruginosa is an antibiotic resistant bacterium that causes hospital-related infections, especially in people with bad burns, in intensive care units, and people with the disease cystic fibrosis. This movie shows how it can quickly spread across surfaces in a matter of minutes. This movie consists of 150 frames captured over a 10 minute window (15 frames per minute). The movie was then recorded at 5 frames per second to show the motility of the bacteria. They are using their type IV pili to move along the surface between the agar and the glass coverslip, via twitching motility. Due to technical issues, the focus was maintained manually over the 10 min timeframe. Video made by Lori L. Burrows, PhD and Hosam Khalil, MSc in the McMaster Biophotonics Facility, McMaster University.

2015.06.22

原核生物
Pseudomonas aeruginosa twitching at a glass-agar interface

種名:Pseudomonas aeruginosa
Department of Biochemistry and Biomedical Sciences, McMaster University Lori L. Burrows

Pseudomonas aeruginosa is an antibiotic resistant bacterium that causes hospital-related infections, especially in people with bad burns, in intensive care units, and people with the disease cystic fibrosis. This movie shows how it can quickly spread across surfaces in a matter of minutes. This movie consists of 150 frames captured over a 10 minute window (15 frames per minute). The movie was then recorded at 5 frames per second to show the motility of the bacteria. They are using their type IV pili to move along the surface between the agar and the glass coverslip, via twitching motility. Due to technical issues, the focus was maintained manually over the 10 min timeframe. Video made by Lori L. Burrows, PhD and Hosam Khalil, MSc in the McMaster Biophotonics Facility, McMaster University.

2015.06.22

原核生物
Pseudomonas twitching motility...the close-up

種名:Pseudomonas aeruginosa
Department of Biochemistry and Biomedical Sciences, McMaster University Lori L. Burrows
 

Pseudomonas aeruginosa moving across a surface using its type IV pili. The right panel is enlarged to reveal how the cells can move in either direction by reversing. This is a 10 min clip shown at 20X speed.

2015.06.19

真核生物
特徴のつかめない小型アメーバ

種名:Amoeba(Filamoeba or Vampyrella)
AL-Museum AL-Museum

体長約50ミクロンで柔らかいが、体内には顆粒がぎっしりつまり硬い感じもする。 四方に細長い偽足を出してゆっくり粒子の間を動いている。

AL-Museum

2015.06.19

真核生物
餌をあさる大型繊毛虫

種名:Paraurostyla
AL-Museum AL-Museum

体長約200ミクロン、体の前後の繊毛を動かし、粒子の間を行ったり来たり

AL-Museum

2015.06.18

分子・タンパク質
High speed AFM observation of sparse binding of individual cofilin-rod molecules to actin filaments.

National Institute of Advanced Industrial Science and Technology (AIST) and Kanazawa University Ngo Xuan Kien, 古寺哲幸、上田太郎

Individual cofilin molecules are too small to visualize by AFM. Thus, we fused the rod domain of α-actinin to the C-terminus of cofilin (cofilin-rod), so that transient binding of cofilin-rod to and dissociation from an actin filament was visualized by the presence of a rod-like structure sticking out of the actin filament (blue arrowhead). Note that no severing was observed near singly bound cofilin-rod molecules. Conditions: F buffer containing 1 mM ATP and 75 nM cofilin-rod, imaging rate: 4 frames/s, and playing rate: 5 frames/s. The width of the imaged field: 150 nm, Z-scale: 0–12 nm.

eLife, 4:e04806, 2015

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