scholarly journals Glucose enhances indolic glucosinolate biosynthesis without reducing primary sulfur assimilation

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Huiying Miao ◽  
Congxi Cai ◽  
Jia Wei ◽  
Jirong Huang ◽  
Jiaqi Chang ◽  
...  
Keyword(s):  
Sulfur Assimilation ◽  
Glucosinolate Biosynthesis ◽  
Indolic Glucosinolate

scholarly journals The phosphorylated pathway of serine biosynthesis is crucial for indolic glucosinolate biosynthesis and plant growth promotion conferred by the root endophyte Colletotrichum tofieldiae

2021 ◽  
Author(s):  
Sandra E. Zimmermann ◽  
Samira Blau ◽  
Henning Frerigmann ◽  
Stephan Krueger
Keyword(s):  
Plant Growth ◽  
Growth Promotion ◽  
Primary Metabolism ◽  
Loss Of Function ◽  
Promoting Effect ◽  
Root Cells ◽  
Defense Compounds ◽  
Glucosinolate Biosynthesis ◽  
Serine Biosynthesis ◽  
Indolic Glucosinolate

Abstract Key message Phosphoglycerate Dehydrogenase 1 of the phosphorylated pathway of serine biosynthesis, active in heterotrophic plastids, is required for the synthesis of serine to enable plant growth at high rates of indolic glucosinolate biosynthesis. Abstract Plants have evolved effective strategies to defend against various types of pathogens. The synthesis of a multitude of specialized metabolites represents one effective approach to keep plant attackers in check. The synthesis of those defense compounds is cost intensive and requires extensive interaction with primary metabolism. However, how primary metabolism is adjusted to fulfill the requirements of specialized metabolism is still not completely resolved. Here, we studied the role of the phosphorylated pathway of serine biosynthesis (PPSB) for the synthesis of glucosinolates, the main class of defensive compounds in the model plant Arabidopsis thaliana. We show that major genes of the PPSB are co-expressed with genes required for the synthesis of tryptophan, the unique precursor for the formation of indolic glucosinolates (IG). Transcriptional and metabolic characterization of loss-of-function and dominant mutants of ALTERED TRYPTOPHAN1-like transcription factors revealed demand driven activation of PPSB genes by major regulators of IG biosynthesis. Trans-activation of PPSB promoters by ATR1/MYB34 transcription factor in cultured root cells confirmed this finding. The content of IGs were significantly reduced in plants compromised in the PPSB and these plants showed higher sensitivity against treatment with 5-methyl-tryptophan, a characteristic behavior of mutants impaired in IG biosynthesis. We further found that serine produced by the PPSB is required to enable plant growth under conditions of high demand for IG. In addition, PPSB-deficient plants lack the growth promoting effect resulting from interaction with the beneficial root-colonizing fungus Colletotrichum tofieldiae.

COI1 is involved in jasmonate-induced indolic glucosinolate biosynthesis inArabidopsis thaliana

2012 ◽  
Vol 32 (17) ◽  
pp. 5438-5444
Author(s):  
石璐 SHI Lu ◽  
李梦莎 LI Mengsha ◽  
王丽华 WANG Lihua ◽  
于萍 YU Ping ◽  
李楠 LI Nan ◽  
...  
Keyword(s):  
Glucosinolate Biosynthesis ◽  
Indolic Glucosinolate

scholarly journals The transcription factor HIG1/MYB51 regulates indolic glucosinolate biosynthesis in Arabidopsis thaliana

2007 ◽  
Vol 50 (5) ◽  
pp. 886-901 ◽  
Author(s):  
Tamara Gigolashvili ◽  
Bettina Berger ◽  
Hans-Peter Mock ◽  
Caroline Müller ◽  
Bernd Weisshaar ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Transcription Factor ◽  
Glucosinolate Biosynthesis ◽  
Indolic Glucosinolate

Comparative Quantitative Trait Loci Mapping of Aliphatic, Indolic and Benzylic Glucosinolate Production in Arabidopsis thaliana Leaves and Seeds

Genetics ◽  
2001 ◽  
Vol 159 (1) ◽  
pp. 359-370 ◽  
Author(s):  
Daniel J Kliebenstein ◽  
Jonathan Gershenzon ◽  
Thomas Mitchell-Olds
Keyword(s):  
Arabidopsis Thaliana ◽  
Secondary Metabolites ◽  
Plant Environment ◽  
Aliphatic Glucosinolates ◽  
Glucosinolate Concentration ◽  
Indolic Glucosinolates ◽  
The Individual ◽  
Concentration Mapping ◽  
Indolic Glucosinolate ◽  
Aliphatic Glucosinolate

Abstract Secondary metabolites are a diverse set of plant compounds believed to have numerous functions in plant-environment interactions. Despite this importance, little is known about the regulation of secondary metabolite accumulation. We are studying the regulation of glucosinolates, a large group of secondary metabolites, in Arabidopsis to investigate how secondary metabolism is controlled. We utilized Ler and Cvi, two ecotypes of Arabidopsis that have striking differences in both the types and amounts of glucosinolates that accumulate in the seeds and leaves. QTL analysis identified six loci determining total aliphatic glucosinolate accumulation, six loci controlling total indolic glucosinolate concentration, and three loci regulating benzylic glucosinolate levels. Our results show that two of the loci controlling total aliphatic glucosinolates map to biosynthetic loci that interact epistatically to regulate aliphatic glucosinolate accumulation. In addition to the six loci regulating total indolic glucosinolate concentration, mapping of QTL for the individual indolic glucosinolates identified five additional loci that were specific to subsets of the indolic glucosinolates. These data show that there are a large number of variable loci controlling glucosinolate accumulation in Arabidopsis thaliana.

scholarly journals The bundle sheath of rice is conditioned to play an active role in water transport as well as sulfur assimilation and jasmonic acid synthesis

2021 ◽  
Author(s):  
Lei Hua ◽  
Sean R. Stevenson ◽  
Ivan Reyna‐Llorens ◽  
Haiyan Xiong ◽  
Stanislav Kopriva ◽  
...  
Keyword(s):  
Jasmonic Acid ◽  
Water Transport ◽  
Active Role ◽  
Acid Synthesis ◽  
Bundle Sheath ◽  
Sulfur Assimilation
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