Dehydroanthrasesamones A and B, anthraquinone derivatives containing a dienyl side-chain from Sesamum indicum hairy roots.
(51/60)
Two additional anthraquinone derivatives containing a (Z)-dienyl side-chain, dehydroanthrasesamones A (2) and B (3), were isolated from a hairy root culture of Sesamum indicum after preventing light throughout all experimental procedures. Their respective structures were determined to be 1-hydroxy-2-[(Z)-4-methylpenta-1,3-dien-1-yl]anthraquinone and 1,4-dihydroxy-2-[(Z)-4-methylpenta-1,3-dien-1-yl]anthraquinone by spectroscopic methods. (+info)
Vitamin D insufficiency is associated with challenge-proven food allergy in infants.
(52/60)
IAA-producing Penicillium sp. NICS01 triggers plant growth and suppresses Fusarium sp.-induced oxidative stress in sesame (Sesamum indicum L.).
(53/60)
Application of rhizospheric fungi is an effective and environmentally friendly method of improving plant growth and controlling many plant diseases. The current study was aimed to identify phytohormone-producing fungi from soil, to understand their roles in sesame plant growth, and to control Fusarium disease. Three predominant fungi (PNF1, PNF2, and PNF3) isolated from the rhizospheric soil of peanut plants were screened for their growth-promoting efficiency on sesame seedlings. Among these isolates, PNF2 significantly increased the shoot length and fresh weight of seedlings compared with controls. Analysis of the fungal culture filtrate showed a higher concentration of indole acetic acid in PNF2 than in the other isolates. PNF2 was identified as Penicillium sp. on the basis of phylogenetic analysis of ITS sequence similarity. The in vitro biocontrol activity of Penicillium sp. against Fusarium sp. was exhibited by a 49% inhibition of mycelial growth in a dual culture bioassay and by hyphal injuries as observed by scanning electron microscopy. In addition, greenhouse experiments revealed that Fusarium inhibited growth in sesame plants by damaging lipid membranes and reducing protein content. Co-cultivation with Penicillium sp. mitigated Fusarium-induced oxidative stress in sesame plants by limiting membrane lipid peroxidation, and by increasing the protein concentration, levels of antioxidants such as total polyphenols, and peroxidase and polyphenoloxidase activities. Thus, our findings suggest that Penicillium sp. is a potent plant growthpromoting fungus that has the ability to ameliorate damage caused by Fusarium infection in sesame cultivation. (+info)
Dietary sesame seed and its lignan, sesamin, increase tocopherol and phylloquinone concentrations in male rats.
(54/60)