Transcriptional and Hormonal Regulation of Gravitropism of Woody Stems in Populus
S Gerttula, M Zinkgraf, GK Muday, DR Lewis… - The Plant …, 2015 - academic.oup.com
Angiosperm trees reorient their woody stems by asymmetrically producing a specialized
xylem tissue, tension wood, which exerts a strong contractile force resulting in negative
gravitropism of the stem. Here, we show, in Populus trees, that initial gravity perception and
response occurs in specialized cells through sedimentation of starch-filled amyloplasts and
relocalization of the auxin transport protein, PIN3. Gibberellic acid treatment stimulates the
rate of tension wood formation and gravibending and enhances tissue-specific expression of …
xylem tissue, tension wood, which exerts a strong contractile force resulting in negative
gravitropism of the stem. Here, we show, in Populus trees, that initial gravity perception and
response occurs in specialized cells through sedimentation of starch-filled amyloplasts and
relocalization of the auxin transport protein, PIN3. Gibberellic acid treatment stimulates the
rate of tension wood formation and gravibending and enhances tissue-specific expression of …
[PDF][PDF] Transcriptional and Hormonal Regulation of Gravitropism of Woody Stems in PopulusOPEN
S Gerttula, M Zinkgraf, G Muday, D Lewis, FM Ibatullin… - researchgate.net
Angiosperm trees reorient their woody stems by asymmetrically producing a specialized
xylem tissue, tension wood, which exerts a strong contractile force resulting in negative
gravitropism of the stem. Here, we show, in Populus trees, that initial gravity perception and
response occurs in specialized cells through sedimentation of starch-filled amyloplasts and
relocalization of the auxin transport protein, PIN3. Gibberellic acid treatment stimulates the
rate of tension wood formation and gravibending and enhances tissue-specific expression of …
xylem tissue, tension wood, which exerts a strong contractile force resulting in negative
gravitropism of the stem. Here, we show, in Populus trees, that initial gravity perception and
response occurs in specialized cells through sedimentation of starch-filled amyloplasts and
relocalization of the auxin transport protein, PIN3. Gibberellic acid treatment stimulates the
rate of tension wood formation and gravibending and enhances tissue-specific expression of …
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