Chloroplast Distribution in the Stems of 23 Eucalypt Species [PDF]
Small diameter branchlets and smooth barked stems and branches of most woody plants have chloroplasts. While the stems of several eucalypt species have been shown to photosynthesise, the distribution of chloroplasts has not been investigated in detail ...
Geoffrey E. Burrows, Celia Connor
doaj +3 more sources
Uncovering miRNA-Mediated Regulation in Phellem Versus Xylem Differentiation in Quercus suber L. [PDF]
Abstract Several regulators of phellem/cork formation have been identified in recent years, using mainly transcriptomic approaches. However, this developmental process, showing parallels to the functioning of vascular cambium, remains poorly understood.
Inés Chaves +2 more
exaly +4 more sources
Translational profile of developing phellem cells in Arabidopsis thaliana roots [PDF]
Summary The phellem is a specialized boundary tissue providing the first line of defense against abiotic and biotic stresses in organs undergoing secondary growth. Phellem cells undergo several differentiation steps, which include cell wall suberization, cell expansion, and programmed cell death.
Ana Rita Leal +7 more
openaire +3 more sources
Aerenchymatous phellem in hypocotyl and roots enables O2 transport in Melilotus siculus [PDF]
• Aerenchymatous phellem (secondary aerenchyma) has rarely been studied in roots. Its formation and role in internal aeration were evaluated for Melilotus siculus, an annual legume of wet saline land. • Plants were grown for 21 d in aerated or stagnant (deoxygenated) agar solutions.
Teakle, N.L. +3 more
core +6 more sources
Identification of cork oak genetic modules regulating phellem development in response to drought
Poster communication presented at the 20th IUFRO Tree Biotech and 2nd Forest Tree Molecular Biology and Biotechnology Conference. July 7th-9th 2022, Harbin, China (online). URL: http://www.treebiotech2022.com/ScientificProgram.pdf The longevity and high activity of the cork cambium (phellogen) in the bark of cork oak are the cornerstones for the ...
Barros, Pedro M. +4 more
openaire +2 more sources
The Aerenchymatous Phellem of Lythrum salicaria (L.): a Pathway for Gas Transport and its Role in Flood Tolerance [PDF]
While the importance of cortical aerenchyma in flood tolerance is well established, this pathway for gaseous exchange is often destroyed during secondary growth. For woody species, therefore, an additional pathway must develop for oxygen to reach submerged tissues.
Kevin J, Stevens +2 more
exaly +3 more sources
Silencing against the conserved NAC domain of the potato StNAC103 reveals new NAC candidates to repress the suberin associated waxes in phellem [PDF]
Both suberin and its associated waxes contribute to the formation of apoplastic barriers that protect plants from the environment. Some transcription factors have emerged as regulators of the suberization process. The potato StNAC103 gene was reported as a repressor of suberin polyester and suberin-associated waxes deposition because its RNAi-mediated ...
Soler, Marçal +10 more
openaire +7 more sources
Sucrose supply from leaves is required for aerenchymatous phellem formation in hypocotyl of soybean under waterlogged conditions [PDF]
Soil waterlogging often causes oxygen deficiency in the root systems of plants and severely inhibits plant growth. Formation of aerenchyma - interconnected spaces that facilitate the movement of gases between and within the aerial and submerged parts of plants - is an adaptive trait for coping with waterlogged conditions.
Hirokazu Takahashi +2 more
exaly +3 more sources
Abstract Cork cambium (or phellogen) is a secondary meristem responsible for the formation of phelloderm and phellem/cork, which together compose the periderm. In Quercus suber L., the phellogen is active throughout the entire life of the tree, producing a continuous and renewable outer bark of cork.
Susana T, Lopes +6 more
openaire +3 more sources
Bark anatomy of Polylepis (Rosaceae): a loose stratified phellem instead of the lenticels?
Bark structure of Polylepis incana (Sanguisorbeae, Rosaceae) is described and compared with that in related genera Cliffortia and Leucosidea. Tribe Sanguisorbeae shows an extraordinary diversity of bark abscission patterns. The outermost bark portions are peeling off along the non-conducting secondary phloem (Leucosidea, Cliffortia ruscifolia), or ...
Alexei A. Oskolski +3 more
exaly +2 more sources

