2013
DOI: 10.1104/pp.113.223503
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Arabidopsis Phospholipase Dδ Is Involved in Basal Defense and Nonhost Resistance to Powdery Mildew Fungi  

Abstract: Plants have evolved a complex array of defensive responses against pathogenic microorganisms. Recognition of microbes initiates signaling cascades that activate plant defenses. The membrane lipid phosphatidic acid, produced by phospholipase D (PLD), has been shown to take part in both abiotic and biotic stress signaling. In this study, the involvement of PLD in the interaction between Arabidopsis (Arabidopsis thaliana) and the barley powdery mildew fungus Blumeria graminis f. sp. hordei (Bgh) was investigated.… Show more

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Cited by 105 publications
(113 citation statements)
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“…It is possible that different MAMPs induce PA production via distinct pathways yet the genetic evidence for the involvement of PA in PTI signaling remains elusive. A mutation in PLD isoform PLDδ displays delayed defense gene induction upon chitin treatment and compromised resistance against barley powdery mildew (121). In addition, PA exhibits extensive cross-talk with other signaling molecules (Figure 1).…”
Section: Cellular and Physiological Responses Triggered By Patternsmentioning
confidence: 99%
“…It is possible that different MAMPs induce PA production via distinct pathways yet the genetic evidence for the involvement of PA in PTI signaling remains elusive. A mutation in PLD isoform PLDδ displays delayed defense gene induction upon chitin treatment and compromised resistance against barley powdery mildew (121). In addition, PA exhibits extensive cross-talk with other signaling molecules (Figure 1).…”
Section: Cellular and Physiological Responses Triggered By Patternsmentioning
confidence: 99%
“…All these PLDs have been demonstrated to play central roles in seed germination [7, 8], growth and biomass accumulation [9], stress [10, 11], defense [12], and wound healing [13]. Based on their gene architecture, their sequence similarities, and their biochemical properties, these PLDs can be grouped into two major categories.…”
Section: Introductionmentioning
confidence: 99%
“…Nevertheless, both of these isoforms have been demonstrated to hydrolyze PC, PG, and N-acylphosphatidylethanolamine in the presence of PIP 2 and 50  μ M of Ca 2+ , at a physiological pH [16]. Concerning the δ -type PLD, 2 spliced variant isoforms have been identified so far and shown to be involved in defense signaling [12] and freezing tolerance [25]. Similarly to β - and γ -type PLDs, δ -type PLD hydrolyzes PC in the presence of PIP 2 and 50 to 100  μ M of Ca 2+ but is also stimulated by oleate [26].…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, Arabidopsis has been used to study the determinants of non-host resistance. Genetic screens using this pathosystem have identified several genes required for non-host resistance to these pathogens, including the PEN (PENETRATION) gene suite and PLDd (PHOSPHOLIPASE Dd) [83][84][85]. …”
Section: Use Of Arabidopsis To Study Other Cereal-infecting Pathogensmentioning
confidence: 99%