Tryptophan from root exudates may be utilized by soil bacteria for IAA synthesis [70], and bacterial IAA may act synergistically with plantsynthesized IAA, increasing the amount of stress ethylene produced in response to flooding
Tryptophan from root exudatesmay be utilized by soil bacteria for IAA synthesis [70],and bacterial IAA may act synergistically with plantsynthesizedIAA, increasing the amount of stressethylene produced in response to flooding