eprintid: 7623
rev_number: 8
eprint_status: archive
userid: 17
dir: disk0/00/00/76/23
datestamp: 2014-03-17 10:40:06
lastmod: 2014-03-17 10:40:06
status_changed: 2014-03-17 10:40:06
type: article
metadata_visibility: show
contact_email: Library-ICRISAT@CGIAR.ORG
creators_name: Bandyopadhyay, R
creators_name: Mughogho, L K
creators_name: Manohar, S K
creators_name: Satyanarayana, M V
icrisatcreators_name: Bandyopadhyay, R
icrisatcreators_name: Mughogho, L K
icrisatcreators_name: Manohar, S K
icrisatcreators_name: Satyanarayana, M V
affiliation: ICRISAT(Patancheru)
country: India
title: Stroma Development, Honeydew Formation, and Conidial Production in Claviceps sorghi
ispublished: pub
subjects: s1.4
full_text_status: restricted
keywords: ergot, Sorghum bicolor, Sphacelia sorghi, sugary disease
abstract: The first sign of ergot (Claviceps sorghi) disease in sorghum was the appearance of superficial mycelial growth on the proximal end of the ovary 3 days after inoculation with conidial suspension. The ovary was converted into a fungal stroma 2 days later, followed by honeydew exudation from the stroma. Honeydew contained three types of conidia?macroconidia, secondary conidia, and microconidia. Macroconidia were elliptical in shape and were the first to be released in the honeydew. Under humid conditions some macroconidia on the surface of the honeydew germinated by germ tubes that enmeshed to form a hyphal mat; others germinated by erect conidiophores on which apical, pyriform secondary conidia were formed outside the honeydew surface. Small, obovate microconidia were later found in the honeydew. All three conidial forms germinated on and penetrated the stigma. Stromata developed at 14?35 C. Honeydew and conidial production occurred at 14?28 C and RH above 90% for 12?16 hr day?1. Sclerotia developed at 28?35 C and RH below 90% for 2 hr day?1. Above 90%, RH, stromata, and honeydew were colonized by saprophytic fungi and sclerotia were not formed
date: 1990
date_type: published
publication: Phytopathology  
volume: 80
number: 9
publisher: American Phytopathological Society
pagerange: 812-818
refereed: TRUE
issn: 0031-949X
official_url: http://dx.doi.org/10.1094/Phyto-80-812
related_url_url: http://scholar.google.co.in/scholar?as_q=Stroma+Development%2C+Honeydew+Formation%2C+and+Conidial+Production+in+Claviceps+sorghi&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publication=&as_ylo=&as_yhi=&btnG=&hl=en&as_sdt=0%2C5
related_url_type: pub
citation:   Bandyopadhyay, R and Mughogho, L K and Manohar, S K and Satyanarayana, M V  (1990) Stroma Development, Honeydew Formation, and Conidial Production in Claviceps sorghi.  Phytopathology , 80 (9).  pp. 812-818.  ISSN 0031-949X     
document_url: http://oar.icrisat.org/7623/1/Phytopathology_80_812-818_1990.pdf