@article{fdi:010054185, title = {{T}he shoot apical meristem of oil palm ({E}laeis guineensis ; {A}recaceae) : developmental progression and dynamics}, author = {{J}ouannic, {S}tefan and {L}artaud, {M}. and {H}erve, {J}. and {C}ollin, {M}yriam and {O}rieux, {Y}. and {V}erdeil, {J}. {L}. and {T}regear, {J}ames}, editor = {}, language = {{ENG}}, abstract = {{B}ackground and {A}ims {O}il palm, an unbranched perennial monocotyledon, possesses a single shoot apical meristem ({SAM}), which is responsible for the initiation of the entire above-ground structure of the plant. {T}o compare the palm {SAM} structure with those of other monocots and to study variations in its structure throughout the life of the plant, its organization was characterized from the embryonic stage to that of the reproductive plant. {M}ethods {SAM} structure was studied by a combination of stained histological sections, light and confocal microscopy, and serial section-based three-dimensional reconstructions. {K}ey {R}esults {T}he oil palm {SAM} is characterized by two developmental phases: a juvenile phase with a single tunica-corpus structure displaying a gradual increase in size; and a mature phase characterized by a stable size, a modified shape and an established histological zonation pattern. {I}n mature plants, fluctuations in {SAM} shape and volume occur, mainly as a consequence of changes in the central zone, possibly in relation to leaf initiation. {C}onclusions {D}evelopment of the oil palm {SAM} is characterized by a juvenile to mature phase transition accompanied by establishment of a zonal pattern and modified shape. {SAM} zonation is dynamic during the plastochron period and displays distinct features compared with other monocots.}, keywords = {{S}hoot apical meristem ; oil palm ; {E}laeis guineensis ; {A}recaceae meristem ; 3-{D} ; development ; evo-devo}, booktitle = {}, journal = {{A}nnals of {B}otany}, volume = {108}, numero = {8 : {S}pecial {I}ssue : {P}alm {B}iology}, pages = {1477--1487}, ISSN = {0305-7364}, year = {2011}, DOI = {10.1093/aob/mcr019}, URL = {https://www.documentation.ird.fr/hor/fdi:010054185}, }