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Paclobutrazol Promotes Root Development of Difficult-to-Root Plants by Coordinating Auxin and ABA Signaling Pathways

€ 42.5

Autor: Li Li
Páginas:55
Publicado: 2023-03-23
ISBN:978-9994987276
Categoría: Science
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Descripción

Phoebe bournei is a rare and endangered plant endemic to China with higher-value uses in essential oil and structural wood production. Its seedlings are prone to death because of its undeveloped system. Paclobutrazol (PBZ) can improve root growth and development in certain plants, but its concentration effect and molecular mechanism remain unclear. Here, we studied the physiological and molecular mechanisms by which PBZ regulates root growth under different treatments. We found that, with moderate concentration treatment (MT), PBZ significantly increased the total root length (69.90%), root surface area (56.35%), and lateral root number (47.17%). IAA content was the highest at MT and was 3.83, 1.86, and 2.47 times greater than the control, low, and high-concentration treatments. 



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