@Article{taiwania2005502109,
AUTHOR = {L. Rajanna, G. R. Shivamurthy, R. Niranjana,  C. R. Vijay},
TITLE = {Occurrence of Phloem in the Haustorium of Aeginetia pedunculata Wall. – A Root Holoparasite of Orobanchaceae},
JOURNAL = {Taiwania},
VOLUME = {50},
YEAR = {2005},
ISSUE = {2},
PAGES = {109-116},
URL = {https://taiwania.ntu.edu.tw/abstract/453},
ABSTRACT = {In the present investigation, the occurrence of phloem and callose deposition on sieve plates in the haustorium of Aeginetia pedunculata Wall., a root holoparasitic herb of Orobanchaceae, is demonstrated. Our studies reveal that the haustorium of A. pedunculata has highly specialized phloem tissue, comprising of sieve tube elements and companion cells found associated occasionally with the xylem strands. More often, they are found as isolated strands in the lobes of the endophyte and the cortex of parasite root. Distinct sieve tube strands can be traced from the parasite root vasculature up to the region of the entry of the haustorium cells into the host stele. The sieve elements show the normal pattern of callose deposition. The callose deposited around the sieve pores show positive staining to lacmoid blue and fluorescence was observed, confirming their phloic nature.},
DOI = {10.6165/tai.2005.50(2).109}
}