ORGANIZATION OF A MIDLINE PROLIFERATIVE CLUSTER IN THE EMBRYONIC BRAIN OF THE GRASSHOPPER

被引:13
作者
BOYAN, GS [1 ]
WILLIAMS, JLD [1 ]
REICHERT, H [1 ]
机构
[1] UNIV BASEL,INST ZOOL,NEUROBIOL LAB,CH-4051 BASEL,SWITZERLAND
来源
ROUXS ARCHIVES OF DEVELOPMENTAL BIOLOGY | 1995年 / 205卷 / 1-2期
关键词
AXONAL PATHFINDING; GLIA; ANNULIN; CENTRAL NERVOUS SYSTEM; BRAIN;
D O I
10.1007/BF00188842
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
We have studied a group of midline cells in the embryonic brain of the grasshopper by using immunocytochemical and intracellular dye injection techniques. This cluster of midline cells differentiates between the pars intercerebralis lobes of the protocerebrum during early embryogenesis, and is composed of putative midline progenitors as well as neuronal and glial cells. Annulin immunoreactive glial processes surround the borders of the midline cell cluster and also form a network of processes extending from there to the borders of proliferative clusters in the brain hemispheres. Among the cells that derive from the midline cluster are two bilaterally symmetrical pairs of identified primary commissure pioneer neurons. By navigating along the glial-bound borders of the midline proliferative cluster, the axons of these pioneers establish an initial axonal bridge across the brain midline. This analysis identifies a glial-bound midline proliferative cluster in the brain and shows that neuronal and glial cells of this cluster are closely associated with neurons pioneering the primary brain commissure. Comparable features of midline cells in the ventral ganglia and similarities to other proliferative clusters in the brain hemispheres are discussed.
引用
收藏
页码:45 / 53
页数:9
相关论文
共 35 条
  • [1] NEURONAL SPECIFICITY AND GROWTH CONE GUIDANCE IN GRASSHOPPER AND DROSOPHILA EMBRYOS
    BASTIANI, MJ
    DOE, CQ
    HELFAND, SL
    GOODMAN, CS
    [J]. TRENDS IN NEUROSCIENCES, 1985, 8 (06) : 257 - 266
  • [2] POSITION-SPECIFIC EXPRESSION OF THE ANNULIN PROTEIN DURING GRASSHOPPER EMBRYOGENESIS
    BASTIANI, MJ
    DECOUET, HG
    QUINN, JMA
    KARLSTROM, RO
    KOTRLA, K
    GOODMAN, CS
    BALL, EE
    [J]. DEVELOPMENTAL BIOLOGY, 1992, 154 (01) : 129 - 142
  • [3] BATE CM, 1981, J EMBRYOL EXP MORPH, V61, P317
  • [4] BATE CM, 1976, J EMBRYOL EXP MORPH, V35, P107
  • [5] BENTLEY D, 1979, J EMBRYOL EXP MORPH, V54, P47
  • [6] BOSSING T, 1994, DEVELOPMENT, V120, P1895
  • [7] Bourne J.A, 1983, HDB IMMUNOPEROXIDASE
  • [8] ORGANIZATION OF THE COMMISSURAL FIBERS IN THE ADULT BRAIN OF THE LOCUST
    BOYAN, G
    WILLIAMS, L
    MEIER, T
    [J]. JOURNAL OF COMPARATIVE NEUROLOGY, 1993, 332 (03) : 358 - 377
  • [9] BOYAN G, 1995, DEVELOPMENT, V121, P75
  • [10] THE GRASSHOPPER, DROSOPHILA AND NEURONAL HOMOLOGY (ADVANTAGES OF THE INSECT NERVOUS-SYSTEM FOR THE NEUROSCIENTIST)
    BOYAN, GS
    BALL, EE
    [J]. PROGRESS IN NEUROBIOLOGY, 1993, 41 (06) : 657 - 682