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Arabidopsis 56–Amino Acid Serine Palmitoyltransferase-Interacting Proteins Stimulate Sphingolipid Synthesis, Are Essential, and Affect Mycotoxin Sensitivity[W][OPEN]
TLDR
It is demonstrated that ssSPTs are essential for male gametophytes, are important for FB1 sensitivity, and limit sphingolipid synthesis in planta.
Plant Sphingolipid Metabolism and Function.
TLDR
Advances in mass spectrometry-based sphingolipid profiling and analyses of Arabidopsis mutants have enabled fundamental discoveries in sphingoipid structural diversity, metabolism, and function that are reviewed here.
12-Hydroxy-jasmonoyl-L-isoleucine is an active jasmonate that signals through CORONATINE INSENSITIVE 1 and contributes to the wound response in Arabidopsis.
TLDR
In silico ligand docking predicted that 12OH-JA-Ile can maintain many of the key interactions with COI1-JAZ1 residues identified earlier by crystal structure studies using JA-Iel as ligand.
Tasselseed5 overexpresses a wound-inducible enzyme, ZmCYP94B1, that affects jasmonate catabolism, sex determination, and plant architecture in maize
TLDR
The phenotype of the Ts5 mutants is the result of interrupted jasmonic acid signaling during sexual differentiation via the upregulation of ZmCYP94B1 and that its proper expression maintains maize monoecy.
ORM Expression Alters Sphingolipid Homeostasis and Differentially Affects Ceramide Synthase Activity1[OPEN]
TLDR
Findings indicate that ORM mediation of SPT activity differentially regulates functionally distinct ceramide synthase activities as part of a broader sphingolipid homeostatic regulatory network.
Tasselseed5 overexpresses a wound-inducible enzyme, ZmCYP94B1, that affects jasmonate catabolism, sex determination, and plant architecture in maize.
TLDR
It is proposed that the Ts5 phenotype results from the interruption of JA signaling during sexual differentiation via the upregulation of ZmCYP94B1 and that its proper expression maintains maize monoecy.
snRNA 3′ End Processing by a CPSF73-Containing Complex Essential for Development in Arabidopsis
TLDR
This study identifies a complex responsible for the snRNA 3′ end maturation in plants and uncovers a previously unknown function of CPSF73 in snRNA maturation.
Response of high leaf-oil Arabidopsis thaliana plant lines to biotic or abiotic stress
TLDR
The results suggest that biotic and abiotic responses will be important considerations when developing and deploying high-oil-biomass crops in the field.
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