Publication: Morphology, anatomy and mycorrhizae in subterranean parts
Authors
Muthukumar, Thangavelu ; Eswaranpillai Uma ; Arumugam Karthikeyan ; Kullaiyan Sathiyadash ; Jaison, Sarah ; Perumalsamy Priyadharsini ; Ishworani Chongtham ; Vellaisamy Muniappan
item.page.secondaryauthor
item.page.director
Publisher
Murcia : Universidad de Murcia, Servicio de Publicaciones
publication.page.editor
publication.page.department
DOI
item.page.type
info:eu-repo/semantics/article
Description
Abstract
Zeuxine gracilis (Berda) Bl., is an endemic, terrestrial green orchid
whose morphology, anatomy and mycorrhizal status is unknown. So
we investigated: (a) root and rhizome anatomy; (b) root hair characteristics
and mycorrhizal colonization patterns in Z. gracilis plants collected
from Western Ghats region of southern India. The prominent anatomical
characters in the roots were: absence of velamen, spiranthosomes,
and the presence of single layered exodermis and nine arched
protoxylem. The rhizome had an uniseriate epidermis, abundant spiranthosomes
in the inner cortical cells, a distinct endodermis with casparian
strips and biseriate vascular bundles. The presence of fungi
both in the roots and rhizomes was revealed. The entry of fungi was
chiefly through root hairs and through epidermis in the rhizome. Fungi
formed pelotons and monilioid cells in the root cortex. Additionally, arbuscular
mycorrhizal (AM) fungi characterized by the presence of
aseptate hyphae, vesicles and spores were present occasionally in
roots. The lack of arbuscules in Z. gracilis indicated the AM to be non
functional.
publication.page.subject
Citation
item.page.embargo
Collections
Ir a Estadísticas
Sin licencia Creative Commons.