Helminthosporium maydis T toxin increased membrane permeability to Ca/sup 2 +/ in susceptible corn mitochondria
Journal Article
·
· Plant Physiol.; (United States)
OSTI ID:5998935
Though Helminthosporium maydis race T (HmT) toxin decreased active Ca/sup 2 +/ uptake into mitochondria isolated from susceptible (T) but not resistant (N) corn. The mode of toxin action is not understood. This study shows that HmT toxin or A23187 (a Ca/sup 2 +/ ionophore) dissipated a Ca/sup 2 +/ gradient in T mitochondria. However, HmT toxin had no effect on Ca/sup 2 +/ gradients in N mitochondria or microsomal vesicles from T or N corn. The results suggest that HmT toxin increased membrane permeability to Ca/sup 2 +/ in mitochondria of T corn specifically.
- Research Organization:
- Univ. of Maryland, College Park
- DOE Contract Number:
- AS05-82ER13015
- OSTI ID:
- 5998935
- Journal Information:
- Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 75:1; ISSN PLPHA
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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Sat Mar 31 23:00:00 EST 1984
· Plant Physiol.; (United States)
·
OSTI ID:7096930
Dissipation of the membrane potential in susceptible corn mitochondria by the toxin of Helminthosporium maydis, race T, and toxin analogs
Journal Article
·
Wed Jul 01 00:00:00 EDT 1987
· Plant Physiol.; (United States)
·
OSTI ID:6070354
Effects of Helminthosporium maydis race T toxin on electron transport in susceptible corn mitochondria and prevention of toxin actions by dicyclohexylcarbodiimide
Journal Article
·
Thu Nov 30 23:00:00 EST 1989
· Plant Physiology; (USA)
·
OSTI ID:5837303
Related Subjects
550300 -- Cytology
553000* -- Agriculture & Food Technology
59 BASIC BIOLOGICAL SCIENCES
60 APPLIED LIFE SCIENCES
ALKALINE EARTH METALS
ANTIGENS
BIOLOGICAL EFFECTS
CALCIUM
CELL CONSTITUENTS
CELL MEMBRANES
CEREALS
DISEASE RESISTANCE
ELEMENTS
FUNGI
GRASS
MAIZE
MATERIALS
MEMBRANE TRANSPORT
MEMBRANES
METALS
MICROSOMES
MITOCHONDRIA
ORGANOIDS
PERMEABILITY
PLANTS
SENSITIVITY
TOXIC MATERIALS
TOXINS
553000* -- Agriculture & Food Technology
59 BASIC BIOLOGICAL SCIENCES
60 APPLIED LIFE SCIENCES
ALKALINE EARTH METALS
ANTIGENS
BIOLOGICAL EFFECTS
CALCIUM
CELL CONSTITUENTS
CELL MEMBRANES
CEREALS
DISEASE RESISTANCE
ELEMENTS
FUNGI
GRASS
MAIZE
MATERIALS
MEMBRANE TRANSPORT
MEMBRANES
METALS
MICROSOMES
MITOCHONDRIA
ORGANOIDS
PERMEABILITY
PLANTS
SENSITIVITY
TOXIC MATERIALS
TOXINS