Mono- and Digalactosyldiacylglycerol Lipids Function Nonredundantly to Regulate Systemic Acquired Resistance in Plants
نویسندگان
چکیده
منابع مشابه
Mono- and digalactosyldiacylglycerol lipids function nonredundantly to regulate systemic acquired resistance in plants.
The plant galactolipids monogalactosyldiacylglycerol (MGDG) and digalactosyldiacylglycerol (DGDG) have been linked to the anti-inflammatory and cancer benefits of a green leafy vegetable diet in humans due to their ability to regulate the levels of free radicals like nitric oxide (NO). Here, we show that DGDG contributes to plant NO as well as salicylic acid biosynthesis and is required for the...
متن کاملReprogramming of plants during systemic acquired resistance
Genome-wide microarray analyses revealed that during biological activation of systemic acquired resistance (SAR) in Arabidopsis, the transcript levels of several hundred plant genes were consistently up- (SAR(+) genes) or down-regulated (SAR(-) genes) in systemic, non-inoculated leaf tissue. This transcriptional reprogramming fully depended on the SAR regulator FLAVIN-DEPENDENT MONOOXYGENASE1 (...
متن کاملSynthesis of mono- and digalactosyldiacylglycerol in isolated spinach chloroplasts.
Purified, intact chloroplasts of Spinacia oleracea L. synthesize galactose-labeled mono- and digalactosyldiacylglycerol (MGDG and DGDG) from UDP-[U-(14)C]galactose. In the presence of high concentrations of unchelated divalent cations they also synthesize tri- and tetra-galactosyldiacylglycerol. The acyl chains of galactose-labeled MGDG are strongly desaturated and such MGDG is a good precursor...
متن کاملInducers of Plant Systemic Acquired Resistance Regulate NPR1 Function through Redox Changes
NPR1 is an essential regulator of plant systemic acquired resistance (SAR), which confers immunity to a broad-spectrum of pathogens. SAR induction results in accumulation of the signal molecule salicylic acid (SA), which induces defense gene expression via activation of NPR1. We found that in an uninduced state, NPR1 is present as an oligomer formed through intermolecular disulfide bonds. Upon ...
متن کاملSystemic Acquired Resistance and Induced Systemic Resistance in Conventional Agriculture
common bean (Phaseolus vulgaris L.), rice (Oryza sativa L.), and Arabidopsis thaliana (L.) Heynh., demonstraPlants possess a range of defenses that can be actively expressed ting that SAR was conserved across diverse plant famiin response to pathogens and parasites of various scales, ranging from microscopic viruses to insect herbivores. The timing of these defense lies and was effective agains...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Cell Reports
سال: 2014
ISSN: 2211-1247
DOI: 10.1016/j.celrep.2014.10.069