scholarly journals Multiple immunity-related genes control susceptibility of Arabidopsis thaliana to the parasitic weed Phelipanche aegyptiaca

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9268
Author(s):  
Christopher R. Clarke ◽  
So-Yon Park ◽  
Robert Tuosto ◽  
Xiaoyan Jia ◽  
Amanda Yoder ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Host Plant ◽  
Plant Immunity ◽  
Parasitic Weed ◽  
Hub Gene ◽  
Host Genetic ◽  
Viable Approach ◽  
Mutant Lines ◽  
Host Genes ◽  
Plant Susceptibility

Parasitic weeds represent a major threat to agricultural production across the world. Little is known about which host genetic pathways determine compatibility for any host–parasitic plant interaction. We developed a quantitative assay to characterize the growth of the parasitic weed Phelipanche aegyptiaca on 46 mutant lines of the host plant Arabidopsis thaliana to identify host genes that are essential for susceptibility to the parasite. A. thaliana host plants with mutations in genes involved in jasmonic acid biosynthesis/signaling or the negative regulation of plant immunity were less susceptible to P. aegyptiaca parasitization. In contrast, A. thaliana plants with a mutant allele of the putative immunity hub gene Pfd6 were more susceptible to parasitization. Additionally, quantitative PCR revealed that P. aegyptiaca parasitization leads to transcriptional reprograming of several hormone signaling pathways. While most tested A. thaliana lines were fully susceptible to P. aegyptiaca parasitization, this work revealed several host genes essential for full susceptibility or resistance to parasitism. Altering these pathways may be a viable approach for limiting host plant susceptibility to parasitism.

scholarly journals SHR4z, a novel decoy effector from the haustorium of the parasitic weed Striga gesnerioides, suppresses host plant immunity

2020 ◽  
Vol 226 (3) ◽  
pp. 891-908 ◽  
Author(s):  
Chun Su ◽  
Hai Liu ◽  
Eric K. Wafula ◽  
Loren Honaas ◽  
Claude W. Pamphilis ◽  
...  
Keyword(s):  
Host Plant ◽  
Plant Immunity ◽  
Parasitic Weed ◽  
Striga Gesnerioides

Bagworm Survival and Feeding Preferences as Indicators of Resistance among Maples

2002 ◽  
Vol 20 (3) ◽  
pp. 138-142
Author(s):  
William E. Klingeman
Keyword(s):  
Host Plant ◽  
Ornamental Plants ◽  
Larval Feeding ◽  
Eastern United States ◽  
Feeding Preferences ◽  
Survival And Development ◽  
Early Instar ◽  
Moderate Resistance ◽  
Hybrid Cross ◽  
Plant Susceptibility

Abstract The bagworm (Thyridopteryx ephemeraeformis (Haworth)) is a polyphagous, native pest of numerous deciduous and evergreen ornamental plants. Bagworm larvae were used to investigate host plant susceptibility among ten species and cultivars of maples that are economically important and commonly encountered in landscapes in the eastern United States. Data analyses from 48-hour choice assays, conducted in the laboratory during 2000 and 2001, indicated that differences existed among maples for bagworm feeding preferences and host plant susceptibility. Results from the 48-hour trials were not as accurate as seasonal no-choice assays, however. No-choice assays during both seasons quantified resistance among maples that limited larval bagworm survival and development. Measurements of larval feeding injury demonstrated resistance in paperbark maple (Acer griseum (Franch.) Pax) and trident maple (A. buergerianum Miq.) when compared with other maples. Laboratory results were corroborated during 2001 by a no-choice field assay, in which early instar bagworm larvae performed well on the majority of maples. In contrast, paperbark maple and trident maple were resistant to bagworm feeding, while ‘Autumn Blaze’ Freeman maple (A. x freemanii E. Murray), a hybrid cross obtained by breeding A. rubrum with A. saccharinum, showed moderate resistance.

scholarly journals Seed Gamma Irradiation of Arabidopsis thaliana ABA-Mutant Lines Alters Germination and Does Not Inhibit the Photosynthetic Efficiency of Juvenile Plants

Dose-Response ◽  
2020 ◽  
Vol 18 (4) ◽  
pp. 155932582097924
Author(s):  
Darya Babina ◽  
Marina Podobed ◽  
Ekaterina Bondarenko ◽  
Elizaveta Kazakova ◽  
Sofia Bitarishvili ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Growth Response ◽  
Dose Range ◽  
Fine Tuning ◽  
Plant Tolerance ◽  
Inhibitory Effects ◽  
Γ Irradiation ◽  
Photosynthetic Responses ◽  
Mutant Lines

Plant growth response to γ-irradiation includes stimulating or inhibitory effects depending on plant species, dose applied, stage of ontogeny and other factors. Previous studies showed that responses to irradiation could depend on ABA accumulation and signaling. To elucidate the role of ABA in growth and photosynthetic responses to irradiation, lines Col-8, abi3-8 and aba3 -1 of Arabidopsis thaliana were used. Seeds were γ-irradiated using 60Co in the dose range 50-150 Gy. It was revealed that the dose of 150 Gy affected germination parameters of aba3 -1 and Col-8 lines, while abi3-8 line was the most resistant to the studied doses and even showed faster germination at early hours after γ-irradiation at 50 Gy. These results suggest that susceptibility to ABA is probably more important for growth response to γ-irradiation than ABA synthesis. The photosynthetic functioning of 16-day-old plants mainly was not disturbed by γ-irradiation of seeds, and no indication of photosystem II photoinhibition was noticed, revealing the robustness of the photosynthetic system of A. thaliana. Glutathione peroxidase activity and ABA concentrations in plant tissues were not affected in the studied dose range. These results contribute to the understanding of germination and photosynthesis fine-tuning and of mechanisms of plant tolerance to ionizing radiation.

Production of hydroxy fatty acids in the seeds of Arabidopsis thaliana

2000 ◽  
Vol 28 (6) ◽  
pp. 947-950 ◽  
Author(s):  
M. Smith ◽  
H. Moon ◽  
L. Kunst
Keyword(s):  
Fatty Acids ◽  
Arabidopsis Thaliana ◽  
Seed Oil ◽  
Desaturase Activity ◽  
Hydroxy Fatty Acids ◽  
Specific Expression ◽  
Oleate Desaturase ◽  
Arabidopsis Mutant ◽  
Mutant Lines ◽  
Seed Specific Expression

Seed-specific expression in Arabidopsis thaliana of oleate hydroxylase enzymes from castor bean and Lesquerella fendleri resulted in the accumulation of hydroxy fatty acids in the seed oil. By using various Arabidopsis mutant lines it was shown that the endoplasmic reticulum (ER) n–-3 desaturase (FAD3) and the FAE1 condensing enzyme are involved in the synthesis of polyunsaturated and very-long-chain hydroxy fatty acids, respectively. In Arabidopsis plants with an active ER Δ12-oleate desaturase the presence of hydroxy fatty acids corresponded to an increase in the levels of 18:1 and a decrease in 18:2 levels. Expression in yeast indicates that the castor hydroxylase also has a low level of desaturase activity.

scholarly journals Analysis of plant growth-promoting properties of Bacillus amyloliquefaciens UCMB5113 using Arabidopsis thaliana as host plant

Planta ◽  
2016 ◽  
Vol 245 (1) ◽  
pp. 15-30 ◽  
Author(s):  
Shashidar Asari ◽  
Danuše Tarkowská ◽  
Jakub Rolčík ◽  
Ondřej Novák ◽  
David Velázquez Palmero ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Plant Growth ◽  
Host Plant ◽  
Bacillus Amyloliquefaciens ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Multiple Candidate Effectors from the Oomycete Pathogen Hyaloperonospora arabidopsidis Suppress Host Plant Immunity

2011 ◽  
Vol 7 (11) ◽  
pp. e1002348 ◽  
Author(s):  
Georgina Fabro ◽  
Jens Steinbrenner ◽  
Mary Coates ◽  
Naveed Ishaque ◽  
Laura Baxter ◽  
...  
Keyword(s):  
Host Plant ◽  
Plant Immunity ◽  
Oomycete Pathogen ◽  
Hyaloperonospora Arabidopsidis

Host-plant susceptibility to the carrot fly, Psila rosae. 2. Suitability of various host species for larval development

1999 ◽  
Vol 134 (1) ◽  
pp. 13-26 ◽  
Author(s):  
THOMAS DEGEN ◽  
ERICH STÄDLER ◽  
P R ELLIS
Keyword(s):  
Larval Development ◽  
Host Plant ◽  
Host Species ◽  
Psila Rosae ◽  
Carrot Fly ◽  
Plant Susceptibility

scholarly journals The Cell Wall-Derived Xyloglucan Is a New DAMP Triggering Plant Immunity in Vitis vinifera and Arabidopsis thaliana

2018 ◽  
Vol 9 ◽  
Author(s):  
Justine Claverie ◽  
Suzanne Balacey ◽  
Christelle Lemaître-Guillier ◽  
Daphnée Brulé ◽  
Annick Chiltz ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Cell Wall ◽  
Vitis Vinifera ◽  
Plant Immunity

scholarly journals Loss of chloroplast-localized protein phosphatase 2Cs in Arabidopsis thaliana leads to enhancement of plant immunity and resistance to Xanthomonas campestris pv. campestris infection

2017 ◽  
Vol 19 (5) ◽  
pp. 1184-1195 ◽  
Author(s):  
Chiharu Akimoto-Tomiyama ◽  
Shigeru Tanabe ◽  
Hideyuki Kajiwara ◽  
Eiichi Minami ◽  
Hirokazu Ochiai
Keyword(s):  
Arabidopsis Thaliana ◽  
Protein Phosphatase ◽  
Xanthomonas Campestris ◽  
Plant Immunity ◽  
Xanthomonas Campestris Pv Campestris

scholarly journals Alpha Carbonic Anhydrase 5 Mediates Stimulation of ATP Synthesis by Bicarbonate in Isolated Arabidopsis Thylakoids

2021 ◽  
Vol 12 ◽  
Author(s):  
Tatiana P. Fedorchuk ◽  
Inga A. Kireeva ◽  
Vera K. Opanasenko ◽  
Vasily V. Terentyev ◽  
Natalia N. Rudenko ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Arabidopsis Thaliana ◽  
Carbonic Anhydrase ◽  
Atp Synthesis ◽  
Thylakoid Membranes ◽  
Wild Type ◽  
Gene Encoding ◽  
Mutant Lines ◽  
Stimulation Of ◽  
Soluble Carbonic Anhydrase

We studied bicarbonate-induced stimulation of photophosphorylation in thylakoids isolated from leaves of Arabidopsis thaliana plants. This stimulation was not observed in thylakoids of wild-type in the presence of mafenide, a soluble carbonic anhydrase inhibitor, and was absent in thylakoids of two mutant lines lacking the gene encoding alpha carbonic anhydrase 5 (αCA5). Using mass spectrometry, we revealed the presence of αCA5 in stromal thylakoid membranes of wild-type plants. A possible mechanism of the photophosphorylation stimulation by bicarbonate that involves αCA5 is proposed.

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