TY - JOUR
T1 - Analysis of the Arabidopsis coilin mutant reveals a positive role of AtCOILIN in plant immunity
AU - Abulfaraj, Aala A.
AU - Alhoraibi, Hanna M.
AU - Mariappan, Kiruthiga
AU - Bigeard, Jean
AU - Zhang, Huoming
AU - Almeida-Trapp, Marilia
AU - Artyukh, Olga
AU - Abdulhakim, Fatimah
AU - Parween, Sabiha
AU - Pflieger, Delphine
AU - Blilou, Ikram
AU - Hirt, Heribert
AU - Rayapuram, Naganand
N1 - Funding Information:
This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) to Prof. Heribert Hirt No. BAS/1/1062-01-01.
Publisher Copyright:
© The Author(s) 2022. Published by Oxford University Press on behalf of American Society of Plant Biologists.
PY - 2022/9
Y1 - 2022/9
N2 - Biogenesis of ribonucleoproteins occurs in dynamic subnuclear compartments called Cajal bodies (CBs). COILIN is a critical scaffolding component essential for CB formation, composition, and activity. We recently showed that Arabidopsis (Arabidopsis thaliana) AtCOILIN is phosphorylated in response to bacterial elicitor treatment. Here, we further investigated the role of AtCOILIN in plant innate immunity. Atcoilin mutants are compromised in defense responses to bacterial pathogens. Besides confirming a role of AtCOILIN in alternative splicing (AS), Atcoilin showed differential expression of genes that are distinct from those of AS, including factors involved in RNA biogenesis, metabolism, plant immunity, and phytohormones. Atcoilin mutant plants have reduced levels of defense phytohormones. As expected, the mutant plants were more sensitive to the necrotrophic fungal pathogen Botrytis cinerea. Our findings reveal an important role for AtCOILIN in innate plant immunity.
AB - Biogenesis of ribonucleoproteins occurs in dynamic subnuclear compartments called Cajal bodies (CBs). COILIN is a critical scaffolding component essential for CB formation, composition, and activity. We recently showed that Arabidopsis (Arabidopsis thaliana) AtCOILIN is phosphorylated in response to bacterial elicitor treatment. Here, we further investigated the role of AtCOILIN in plant innate immunity. Atcoilin mutants are compromised in defense responses to bacterial pathogens. Besides confirming a role of AtCOILIN in alternative splicing (AS), Atcoilin showed differential expression of genes that are distinct from those of AS, including factors involved in RNA biogenesis, metabolism, plant immunity, and phytohormones. Atcoilin mutant plants have reduced levels of defense phytohormones. As expected, the mutant plants were more sensitive to the necrotrophic fungal pathogen Botrytis cinerea. Our findings reveal an important role for AtCOILIN in innate plant immunity.
UR - http://www.scopus.com/inward/record.url?scp=85137138886&partnerID=8YFLogxK
U2 - 10.1093/plphys/kiac280
DO - 10.1093/plphys/kiac280
M3 - Article
C2 - 35674377
AN - SCOPUS:85137138886
SN - 0032-0889
VL - 190
SP - 745
EP - 761
JO - PLANT PHYSIOLOGY
JF - PLANT PHYSIOLOGY
IS - 1
ER -