Apoptosis-like Programmed Cell Death Occurs in Procambium and Ground Meristem of Pea (Pisum sativum) Root Tips Exposed to Sudden Flooding | Zendy

Daniel K. Gladish | Zendy; Jiping Xu | Zendy; Teruo Niki | Zendy

Open Access

Apoptosis-like Programmed Cell Death Occurs in Procambium and Ground Meristem of Pea (Pisum sativum) Root Tips Exposed to Sudden Flooding

Author(s) -

Daniel K. Gladish,

Jiping Xu,

Teruo Niki

Publication year - 2006

Publication title -

annals of botany

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.567

H-Index - 176

eISSN - 1095-8290

pISSN - 0305-7364

DOI - 10.1093/aob/mcl040

Subject(s) - biology , pisum , programmed cell death , meristem , botany , plasmodesma , root cap , aerenchyma , sativum , microbiology and biotechnology , ultrastructure , apoptosis , biophysics , shoot , biochemistry

Pea (Pisum sativum) primary roots form long vascular cavities when grown under wet or flooded conditions at 25 degrees C. It is thought that the cavities are a form of aerenchyma. At 25 degrees C short roots continue to grow after flooding. After roots reach 10 cm long flooding causes rapid cessation of growth, and root tips often become curled. In longer roots the cavities do not extend into the base of the roots, perhaps rendering them ineffective as aerenchyma. It was hypothesized that the resulting growth arrest was due to programmed cell death (PCD) rather than necrosis.

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