Recognition and rejection of self in plant self-incompatibility: comparisons to animal histocompatibility

被引:61
作者
Nasrallah, JB [1 ]
机构
[1] Cornell Univ, Dept Plant Biol, Ithaca, NY 14850 USA
关键词
D O I
10.1016/j.it.2005.06.005
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
In many flowering plants, intraspecific barriers to self-fertilization ensure outbreeding by interrupting the path of pollen tube growth before egg-sperm interaction. These self-sterility or self-incompatibility (SI) systems are unique among recognition systems, in that they are based on the recognition and rejection of self, rather than non-self. Consistent with multiple evolutionary origins of SI, different plant families use distinct mechanisms for pollen recognition and inhibition. These mechanisms range from the arrest of pollen tube emergence by specific interactions between surface receptors and ligands and activation of intracellular signaling cascades, to the destruction of pollen tubes by the cytotoxic activity of RNases or by induction of a programmed cell death pathway. These mechanistic differences notwithstanding, all plant SI systems analyzed to date share a high degree of recognition specificity, effected by a large number of highly diverged, genetically linked and co-evolving genes, with immunity and other systems that discriminate between self and non-self.
引用
收藏
页码:412 / 418
页数:7
相关论文
共 58 条
[1]  
Boyes DC, 1997, PLANT CELL, V9, P237, DOI 10.1105/tpc.9.2.237
[3]   An invertebrate histocompatibility complex [J].
Cadavid, LF ;
Powell, AE ;
Nicotra, ML ;
Moreno, M ;
Buss, LW .
GENETICS, 2004, 167 (01) :357-365
[4]   How can two-gene models of self-incompatibility generate new specificities? [J].
Charlesworth, D .
PLANT CELL, 2000, 12 (03) :309-310
[5]   Specificity determinants and diversification of the Brassica self-incompatibility pollen ligand [J].
Chookajorn, T ;
Kachroo, A ;
Ripoll, DR ;
Clark, AG ;
Nasrallah, JB .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2004, 101 (04) :911-917
[6]   A new concept of immune specificity emerges from a consideration of the self-nonself discrimination [J].
Cohn, M .
CELLULAR IMMUNOLOGY, 1997, 181 (02) :103-108
[7]   Fossil evidence and phylogeny: The age of major angiosperm clades based on mesofossil and macrofossil evidence from cretaceous deposits [J].
Crepet, WL ;
Nixon, KC ;
Gandolfo, MA .
AMERICAN JOURNAL OF BOTANY, 2004, 91 (10) :1666-1682
[8]   Plant pathogens and integrated defence responses to infection [J].
Dangl, JL ;
Jones, JDG .
NATURE, 2001, 411 (6839) :826-833
[9]  
Darwin C., 1862, J P LINNEAN SOC BOT, V6, P77
[10]  
DARWIN C, 1895, CROSS SELF FERTILIZA, V4