Permanent gases inside healthy and microbially infected cotton fruit during development.
Permanent gases inside developing cotton fruit (Gossypium hirsutum L.) were, by weight, 46% nitrogen, 29% oxygen, 4% argon and 20% carbon dioxide, whereas plant canopy air assayed at 73% nitrogen, 25% oxygen, 2% argon and 0.3% carbon dioxide. Light exposure, fruit age, and mild infection (Erwinia) had no compositional effect but aggressive infection (Aspergillus) raised carbon dioxide content to 31% by weight and correspondingly lowered oxygen to 17%. Respiration with oxygen replenishment except during aggressive infection accounted for the fruit gas compositions.
Jacks
T J
TJ
Southern Regional Research Center, ARS, USDA, New Orleans, LA 70179.
Hensarling
T P
TP
Legendre
M G
MG
Buco
S M
SM
D005638:Fruit / Q000737:chemistry; D005740:Gases; D003368:Gossypium / Q000737:chemistry; D008027:Light; D010935:Plant Diseases
D005740:Gases