Arabinogalactan proteins are expressed at the symbiotic interface in root nodules of Alnus spp.

被引:16
作者
Berry, AM
Rasmussen, U
Bateman, K
Huss-Danell, K
Lindwall, S
Bergman, B
机构
[1] Univ Calif Davis, Dept Environm Hort, Davis, CA 95616 USA
[2] Univ Stockholm, Dept Bot, S-10691 Stockholm, Sweden
[3] Swedish Univ Agr Sci, Dept Agr Res No Sweden, S-90403 Umea, Sweden
关键词
arabinogalactan protein; AGP; root nodule; actinorhizal; Frankia; Alnus; pectin; nodulation;
D O I
10.1046/j.1469-8137.2002.00466.x
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
We have characterized the origin and distribution of arabinogalactan proteins (AGPs) at the symbiotic interface of dinitrogen (N-2)-fixing root nodules of Alnus spp. The interface between the host plant cell and the microsymbiont is an important zone for signaling and growth regulation during nodulation. Arabinogalactan proteins are glycoproteins that have adhesive properties, and, potentially, participate in cell wall assembly, direction of growth, and signaling cascades. These glycoproteins are expressed in several symbiotic systems in an infection-specific pattern, but their occurrence has not been examined in actinorhizal nodules. To characterize AGP epitopes in Alnus root nodules, we have used immunogold localization with anti-AGP antibodies, correlated with other techniques. Arabinogalactan proteins are abundant in the nodule-infected tissue. One AGP epitope (JIM4) is localized in pectin-rich cell walls, while another (JIM13) is found at the membrane-wall border along the symbiotic interface at the early infection stage, and in the host cytoplasm/vacuoles in mature, infected cells. It is likely that AGPs play a significant role in Alnus root nodules, especially in early nodulation stages.
引用
收藏
页码:469 / 479
页数:11
相关论文
共 49 条
[1]  
BALDWIN TC, 1993, PLANT PHYSIOL, V103, P1993
[2]   CELLULOSE AND XYLANS IN THE INTERFACE CAPSULE IN SYMBIOTIC CELLS OF ACTINORHIZAE [J].
BERG, RH .
PROTOPLASMA, 1990, 159 (01) :35-43
[3]   CYTO-CHEMISTRY OF THE WALL OF INFECTED-CELLS IN CASUARINA-ACTINORHIZAE [J].
BERG, RH ;
MCDOWELL, L .
CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE, 1988, 66 (10) :2038-2047
[4]   FINE-STRUCTURE OF ROOT HAIR INFECTION LEADING TO NODULATION IN THE FRANKIA-ALNUS SYMBIOSIS [J].
BERRY, AM ;
MCINTYRE, L ;
MCCULLY, ME .
CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE, 1986, 64 (02) :292-305
[5]   CALLOSE-CONTAINING DEPOSITS IN RELATION TO ROOT-HAIR INFECTIONS OF ALNUS-RUBRA BY FRANKIA [J].
BERRY, AM ;
MCCULLY, ME .
CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE, 1990, 68 (04) :798-802
[6]  
Berry AM, 1990, BIOL FRANKIA ACTINOR, P61
[7]   Involvement of JIM13-and JIM8-responsive carbohydrate epitopes in early stages of cell wall formation [J].
Butowt, R ;
Niklas, A ;
Rodriguez-Garcia, MI ;
Majewska-Sawka, A .
JOURNAL OF PLANT RESEARCH, 1999, 112 (1105) :107-116
[8]  
CALLAHAM D, 1978, SCIENCE, V199, P899, DOI 10.1126/science.199.4331.899
[9]   Occurrence of cell surface arabinogalactan-protein and extensin epitopes in relation to pericycle and vascular tissue development in the root apex of four species [J].
Casero, PJ ;
Casimiro, I ;
Knox, JP .
PLANTA, 1998, 204 (02) :252-259
[10]   ARABINOGALACTAN PROTEINS DURING THE DEVELOPMENT OF SOYBEAN ROOT-NODULES [J].
CASSAB, GI .
PLANTA, 1986, 168 (04) :441-446