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Journal articles on the topic 'Plants secretion'

Author: Grafiati

Published: 4 June 2021

Last updated: 21 February 2023

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1

JONES, RUSSELL L., and DAVID G. ROBINSON. "Protein secretion in plants." New Phytologist 111, no. 4 (April 1989): 567–97. http://dx.doi.org/10.1111/j.1469-8137.1989.tb02352.x.

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2

Hueck, Christoph J. "Type III Protein Secretion Systems in Bacterial Pathogens of Animals and Plants." Microbiology and Molecular Biology Reviews 62, no. 2 (June 1, 1998): 379–433. http://dx.doi.org/10.1128/mmbr.62.2.379-433.1998.

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SUMMARY Various gram-negative animal and plant pathogens use a novel, sec-independent protein secretion system as a basic virulence mechanism. It is becoming increasingly clear that these so-called type III secretion systems inject (translocate) proteins into the cytosol of eukaryotic cells, where the translocated proteins facilitate bacterial pathogenesis by specifically interfering with host cell signal transduction and other cellular processes. Accordingly, some type III secretion systems are activated by bacterial contact with host cell surfaces. Individual type III secretion systems direc

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3

Toyofuku, Miwako, Fuki Okutani, Masaru Nakayasu, Shoichiro Hamamoto, Hisabumi Takase, Kazufumi Yazaki, and Akifumi Sugiyama. "Enhancement of developmentally regulated daidzein secretion from soybean roots in field conditions as compared with hydroponic culture." Bioscience, Biotechnology, and Biochemistry 85, no. 5 (January 29, 2021): 1165–69. http://dx.doi.org/10.1093/bbb/zbab017.

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ABSTRACT Analyses of metabolite secretions by field-grown plants remain scarce. We analyzed daidzein secretion by field-grown soybean. Daidzein secretion was higher during early vegetative stages than reproductive stages, a trend that was also seen for hydroponically grown soybean. Daidzein secretion was up to 10 000-fold higher under field conditions than hydroponic conditions, leading to a more accurate simulation of rhizosphere daidzein content.

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Rocco da Silva, Camila, Monica Sayuri Mizuno, Solange Maria Bonaldo, Stela Regina Ferrarini, Domingos De Jesus Rodrigues, and Kátia Regina Freitas Schwan-Estrada. "EFEITO DE EXTRATOS DE SECREÇÕES GLANDULARES DE ANFÍBIOS NA FERRUGEM ASIÁTICA (Phakopsora pachyrhizi) E BIOMETRIA DE PLANTAS DE SOJA." Nativa 10, no. 4 (December 22, 2022): 595–603. http://dx.doi.org/10.31413/nativa.v10i4.14511.

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E Extratos de secreções de anfíbios da família Bufonidae têm sido estudados pelo potencial de controle direto de fitopatógenos, bem como na ativação de mecanismos de defesa contra doenças em plantas. Assim, este estudo analisa os efeitos de extratos de secreções glandulares de Rhaebo guttatus e Rhinela marina contra o fungo Phakopsora pachyrhizi e na biometria de plantas de soja da cultivar TMG 132 RR. Aos 30 dias após semeadura, notou-se o surgimento espontâneo da doença e, dois dias após o surgimento das primeiras pústulas, as plantas foram tratadas com extratos de secreções glandulares nas

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Cheng, Fang-yi, and John D. Williamson. "Is there leaderless protein secretion in plants?" Plant Signaling & Behavior 5, no. 2 (February 2010): 129–31. http://dx.doi.org/10.4161/psb.5.2.10304.

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6

Cui, Xiaofeng. "Mucilage Secretion from Plants: Friends or Foes?" Molecular Plant 12, no. 1 (January 2019): 16–17. http://dx.doi.org/10.1016/j.molp.2018.12.008.

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7

Stieger, Bruno. "Biliary cholesterol secretion: more lessons from plants?" Journal of Hepatology 38, no. 6 (June 2003): 843–46. http://dx.doi.org/10.1016/s0168-8278(03)00194-6.

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8

Ding, Yu, David G. Robinson, and Liwen Jiang. "Unconventional protein secretion (UPS) pathways in plants." Current Opinion in Cell Biology 29 (August 2014): 107–15. http://dx.doi.org/10.1016/j.ceb.2014.05.008.

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Robinson, David G., Yu Ding, and Liwen Jiang. "Unconventional protein secretion in plants: a critical assessment." Protoplasma 253, no. 1 (September 26, 2015): 31–43. http://dx.doi.org/10.1007/s00709-015-0887-1.

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10

Roberson, Amanda, Carla Spence, and Harsh P. Bais. "Underground communication: Belowground signalling mediates diverse root–root and root–microbe interactions." Biochemist 36, no. 5 (October 1, 2014): 32–35. http://dx.doi.org/10.1042/bio03605032.

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Plants are stationary organisms, generally restricted to one location for the duration of their growth and development, which is why the need for clear means of information exchange becomes paramount. Above-ground, plants readily emit pungent volatile substances to signal danger of eminent attack to their relatives or to attract the enemy of their enemies. However, most plant communication is occurring below the ground, where plants are secreting compounds from their roots to send messages to neighbouring plants, microbes and insects in the rhizosphere. Although we think of plants as silent an

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11

Lu, Chaoxia, Fang Yuan, Jianrong Guo, Guoliang Han, Chengfeng Wang, Min Chen, and Baoshan Wang. "Current Understanding of Role of Vesicular Transport in Salt Secretion by Salt Glands in Recretohalophytes." International Journal of Molecular Sciences 22, no. 4 (February 23, 2021): 2203. http://dx.doi.org/10.3390/ijms22042203.

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Soil salinization is a serious and growing problem around the world. Some plants, recognized as the recretohalophytes, can normally grow on saline–alkali soil without adverse effects by secreting excessive salt out of the body. The elucidation of the salt secretion process is of great significance for understanding the salt tolerance mechanism adopted by the recretohalophytes. Between the 1950s and the 1970s, three hypotheses, including the osmotic potential hypothesis, the transfer system similar to liquid flow in animals, and vesicle-mediated exocytosis, were proposed to explain the salt sec

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Nolé, Tsabang. "Contribution to the Management of Abnormal Insulin Secretion in Diabetes of Pregnancy using Antidiabetic Medicinal Plants in Cameroon." Diabetes & Obesity International Journal 6, no. 3 (2021): 1–8. http://dx.doi.org/10.23880/doij-16000247.

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Abnormal insulin secretion occurs during hypoinsulinism and hyperinsulinism. Hypoinsulinism is absolute or relative insulin insufficiency which produces a very common clinical sickness called diabetes mellitus. Hyperinsulinism designs an overhead normal level of insulin in a patient’s blood. Hyperinsulinism is the disproportionate production of insulin by tumors of the pancreatic β cells. Patients who suffer from hyperinsulinism disorder undergo hypoglycemic crises, weakness, intense perspiring, and vertigo. This alteration is not known by people of surrounding areas of developing countries li

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PETANIDOU, THEODORA, and ERIK SMETS. "Does temperature stress induce nectar secretion in Mediterranean plants?" New Phytologist 133, no. 3 (July 1996): 513–18. http://dx.doi.org/10.1111/j.1469-8137.1996.tb01919.x.

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14

Sakai, Satoki. "A model for nectar secretion in animal-pollinated plants." Evolutionary Ecology 7, no. 4 (July 1993): 394–400. http://dx.doi.org/10.1007/bf01237870.

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15

Ageichik, A. V., A. N. Evtushenkov, and Y. A. Nikolaichik. "The role of type III secretion system in Erwinia carotovora subsp. atroseptica virulence." Plant Protection Science 38, SI 2 - 6th Conf EFPP 2002 (December 31, 2017): 523–27. http://dx.doi.org/10.17221/10544-pps.

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A hrpJ mutant of Erwinia carotovora subsp. atroseptica (Eca) was constructed and the effects of this mutation on induction of the hypersensitivity response and virulence of Eca were studied. The hrpJ mutant does not induce the HR in non-host plant Vicia faba (V. faba) and demonstrates cultivar-dependent increase or decrease of virulence on potato plants.

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Suárez, Nathalie, and Ernesto Medina. "Salinity effects on leaf ion composition and salt secretion rate in Avicennia germinans (L.) L." Brazilian Journal of Plant Physiology 20, no. 2 (June 2008): 131–40. http://dx.doi.org/10.1590/s1677-04202008000200005.

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The effect of salinity on leaf water relations, and rate and ionic composition of leaf secretion was investigated in plants of Avicennia germinans growing under controlled salinity conditions. Increases in salinity from 0 to 940 mol NaCl m-3 reduced the predawn water potential from -0.56 to -4.16 MPa and the solute potential from -2.27 to -4.48 MPa, whereas the pressure potential remained positive in all treatments. Compared to the control, at 940 mol NaCl m-3 Na+ and Cl- concentrations of leaf sap increased 19 and 7 times, respectively. With the addition of salt the main ions accumulated in l

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Tang, Xiaoyan, Yanmei Xiao, and Jian-Min Zhou. "Regulation of the Type III Secretion System in Phytopathogenic Bacteria." Molecular Plant-Microbe Interactions® 19, no. 11 (November 2006): 1159–66. http://dx.doi.org/10.1094/mpmi-19-1159.

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The type III secretion system (TTSS) is a specialized protein secretion machinery used by numerous gram-negative bacterial pathogens of animals and plants to deliver effector proteins directly into the host cells. In plant-pathogenic bacteria, genes encoding the TTSS were discovered as hypersensitive response and pathogenicity (hrp) genes, because mutation of these genes typically disrupts the bacterial ability to cause diseases on host plants and to elicit hypersensitive response on nonhost plants. The hrp genes and the type III effector genes (collectively called TTSS genes hereafter) are re

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18

Degani, Ofir, and Yuval Goldblat. "Potential Role of Laccases in the Relationship of the Maize Late Wilt Causal Agent, Magnaporthiopsis maydis, and Its Host." Journal of Fungi 6, no. 2 (May 17, 2020): 63. http://dx.doi.org/10.3390/jof6020063.

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Late wilt is a vascular disease of maize (Zea mays L.) caused by the soil-borne and seed-borne fungus Magnaporthiopsis maydis. The pathogen penetrates the roots of maize plants at the seedling stage, grows into the xylem vessels, and gradually spreads upwards. From the flowering stage to the kernel ripening, the fungal hyphae and secreted materials block the water supply in susceptible maize cultivars, leading to rapid dehydration and death. Laccase is an enzyme secreted by fungus for diverse purposes. The M. maydis laccase gene was identified in our laboratory, but under what conditions it is

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19

Haapalainen, Minna, Kristin van Gestel, Minna Pirhonen, and Suvi Taira. "Soluble Plant Cell Signals Induce the Expression of the Type III Secretion System of Pseudomonas syringae and Upregulate the Production of Pilus Protein HrpA." Molecular Plant-Microbe Interactions® 22, no. 3 (March 2009): 282–90. http://dx.doi.org/10.1094/mpmi-22-3-0282.

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Type III protein secretion is essential for the pathogenicity of Pseudomonas syringae on its host plants. Expression of HrpA, a major component of the type III secretion system (T3SS)-associated pilus, was studied both in plant leaves and in vitro using reporter genes. We found that induction of the hrpA promoter was stronger in plants than in vitro, and that the induction was enhanced by both host and nonhost plants of P. syringae pv. tomato. In vitro, the expression was enhanced by cell-free exudates from plant cell suspension cultures, added into the minimal medium. Further analysis of the

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20

Liu, Yun-Jun, Yuan Yuan, Jun Zheng, Ya-Zhong Tao, Zhi-Gang Dong, Jian-Hua Wang, and Guo-Ying Wang. "Signal Peptide of Potato PinII Enhances the Expression of Cry1Ac in Transgenic Tobacco." Acta Biochimica et Biophysica Sinica 36, no. 8 (August 1, 2004): 553–58. http://dx.doi.org/10.1093/abbs/36.8.553.

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Abstract The modified Cry1Ac was expressed in transgenic tobacco plants. To allow secretion of the Cry1Ac protein into the intercellular space, the signal peptide sequence of potato proteinase inhibitor II (pinII) was N-terminally fused to the Cry1Ac encoding region. Expression of Cry1Ac in transgenic tobacco plants was assayed with ELISA. The results showed that pinII signal peptide sequence enhanced the expression of Cry1Ac protein and led to the secretion of the Cry1Ac protein in transgenic tobacco plants. GFP gene was also fused to the signal peptide sequence and transformed to tobacco. Th

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21

Corcoran, R., F. O’Connell, J. O’Sullivan, and D. Kevans. "P084 Secreted inflammatory protein profiles following treatment of ex-vivo human Ulcerative Colitis and Crohn’s Disease explants with licenced biologic therapies." Journal of Crohn's and Colitis 16, Supplement_1 (January 1, 2022): i184. http://dx.doi.org/10.1093/ecco-jcc/jjab232.213.

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Abstract Background Patient-derived inflammatory bowel disease (IBD) ex-plants have potential for biomarker and therapy discovery. Treatment of IBD ex-plants ex-vivo with licensed biologic therapies may result in further insights into their mechanism of action. Methods We aimed to evaluate the effect of Infliximab (IFX), Ustekinumab (USTK) and Vedolizumab (VDZ) on inflammatory protein secretion profiles in ex-vivo human IBD ex-plants. Patients with IBD, undergoing endoscopy, were prospectively recruited. Endoscopic biopsies were collected from the sigmoid colon and IBD ex-plants generated as p

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22

Mendgen, K., U. Bachem, M. Stark-Urnau, and H. Xu. "Secretion and endocytosis at the interface of plants and fungi." Canadian Journal of Botany 73, S1 (December 31, 1995): 640–48. http://dx.doi.org/10.1139/b95-306.

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Secretion products and the uptake of material from the outside of the protoplasts of plants and microbes may influence the mutual interaction in host–parasite systems. Organelles involved in secretion by rust fungi have been characterized using immuno-electron microscopy. Proteins with the C-terminal histidine – aspartic acid – glutamic acid – leucine tetrapeptide (HDEL) signal sequence accumulated in tubular vesicular complexes of the ER in the parasitic phase of the fungi. The tubular complexes were differentiated from smooth cisternae that probably correspond to the Golgi equivalent. In the

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23

Takkis, Krista, Thomas Tscheulin, Panagiotis Tsalkatis, and Theodora Petanidou. "Climate change reduces nectar secretion in two common Mediterranean plants." AoB Plants 7 (2015): plv111. http://dx.doi.org/10.1093/aobpla/plv111.

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24

Vinatzer, Boris A., Joanna Jelenska, and Jean T. Greenberg. "Bioinformatics Correctly Identifies Many Type III Secretion Substrates in the Plant Pathogen Pseudomonas syringae and the Biocontrol Isolate P. fluorescens SBW25." Molecular Plant-Microbe Interactions® 18, no. 8 (August 2005): 877–88. http://dx.doi.org/10.1094/mpmi-18-0877.

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The plant pathogen Pseudomonas syringae causes disease by secreting a potentially large set of virulence proteins called effectors directly into host cells, their environment, or both, using a type III secretion system (T3SS). Most P.syringae effectors have a common upstream element called the hrp box, and their N-terminal regions have amino acids biases, features that permit their bioinformatic prediction. One of the most prominent biases is a positive serine bias. We previously used the truncated AvrRpt281–255 effector containing a serine-rich stretch from amino acids 81 to 100 as a T3SS rep

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Malook, Saif ul, Saiqa Maqbool, Muhammad Hafeez, Samantha Chandranath Karunarathna, and Nakarin Suwannarach. "Molecular and Biochemical Mechanisms of Elicitors in Pest Resistance." Life 12, no. 6 (June 6, 2022): 844. http://dx.doi.org/10.3390/life12060844.

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Insect herbivores have a variety of life cycles and feeding habits, making them extremely diverse. With their host plants, they form close relationships and suppress their defense mechanisms. Molecular elicitors are the key bio-elements in the detection and recognition of attacking enemies in tissue consumption. Insect oral secretion, frass, and fluid of egg deposition contain biologically active molecules called herbivore-associated elicitors (HAEs) that are recognized by pattern-recognition receptors (PRRs). Many plants distinguish insect feeding from wounding by HAEs present in their oral s

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Corcoran, R., F. O’Connell, J. O’Sullivan, and D. Kevans. "P078 Vedolizumab Treatment of ex-vivo Human Ulcerative Colitis (UC) Explants Results in Altered Inflammatory Protein Secretion Profiles." Journal of Crohn's and Colitis 16, Supplement_1 (January 1, 2022): i180—i181. http://dx.doi.org/10.1093/ecco-jcc/jjab232.207.

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Abstract Background Patient-derived inflammatory bowel disease (IBD) ex-plants have potential for biomarker and therapy discovery. Vedolizumab (VDZ) is a monoclonal antibody targeting a4b47 integrin whose mechanism of action is the reduction of inflammatory immune cell trafficking to the intestinal tract. The association between VDZ exposure and treatment response is unclear and appears insufficiently explained by serum levels. For this reason it is hypothesised that VDZ may also have effects at the tissue level. Methods We aimed to evaluate the effect of VDZ on inflammatory protein secretion

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Gandhi, Akanksha, Rupesh R. Kariyat, Cruz Chappa, Mandeep Tayal, and Nirakar Sahoo. "Tobacco Hornworm (Manduca sexta) Oral Secretion Elicits Reactive Oxygen Species in Isolated Tomato Protoplasts." International Journal of Molecular Sciences 21, no. 21 (November 5, 2020): 8297. http://dx.doi.org/10.3390/ijms21218297.

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Plants are under constant attack by a suite of insect herbivores. Over millions of years of coexistence, plants have evolved the ability to sense insect feeding via herbivore-associated elicitors in oral secretions, which can mobilize defense responses. However, herbivore-associated elicitors and the intrinsic downstream modulator of such interactions remain less understood. In this study, we show that tobacco hornworm caterpillar (Manduca sexta) oral secretion (OS) induces reactive oxygen species (ROS) in tomato (Solanum lycopersicum) protoplasts. By using a dye-based ROS imaging approach, ou

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Wei, Yulu, Chaokun Li, Liu Han, Hui Xi, Yinqiang Tian, Kanfolo Franck Hervé Yeo, and Wendong Wang. "Radial Oxygen Loss of Three Plants under Hydroponic Culture and Its Relationships with Pollution Removal." Water 15, no. 3 (January 29, 2023): 532. http://dx.doi.org/10.3390/w15030532.

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The growth status, root exudates, radial oxygen loss, and sewage purification effect of plants acclimated with sewage and cultured with a nutrient solution were studied by selecting Acorus gramineus Aiton, Pistia stratiotes L., and Eichhornia crassipes (Mart.) Solms with the same individual size. The results showed that the root oxygen secretion rate of the Acorus gramineus Aiton was higher in light and dark conditions. For a single plant species, the oxygen secretion rate under light conditions was much higher than that under dark conditions. The root oxygen secretion rate of Acorus gramineus

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Frigerio, Lorenzo, Nicholas D. Vine, Emanuela Pedrazzini, Mich B. Hein, Fei Wang, Julian K. C. Ma, and Alessandro Vitale. "Assembly, Secretion, and Vacuolar Delivery of a Hybrid Immunoglobulin in Plants." Plant Physiology 123, no. 4 (August 1, 2000): 1483–94. http://dx.doi.org/10.1104/pp.123.4.1483.

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30

He, H., L. He, and M. Gu. "Signal transduction during aluminum-induced secretion of organic acids in plants." Biologia plantarum 59, no. 4 (December 1, 2015): 601–8. http://dx.doi.org/10.1007/s10535-015-0537-7.

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Wang, Xiangfeng, Kin Pan Chung, Weili Lin, and Liwen Jiang. "Protein secretion in plants: conventional and unconventional pathways and new techniques." Journal of Experimental Botany 69, no. 1 (August 3, 2017): 21–37. http://dx.doi.org/10.1093/jxb/erx262.

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Weston, P. A., Deborah A. Johnson, H. T. Burton, and John C. Snyder. "Trichome Secretion Composition, Trichome Densities, and Spider Mite Resistance of Ten Accessions of Lycopersicon hirsutum." Journal of the American Society for Horticultural Science 114, no. 3 (May 1989): 492–98. http://dx.doi.org/10.21273/jashs.114.3.492.

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Abstract Trichome secretion composition, glandular trichome densities, and spider mite resistance were measured for 10 accessions of Lycopersicon hirsutum Humb. & Bonpl., a wild, South American relative of tomato exhibiting high arthropod resistance. The sesquiterpene hydrocarbons zingiberene and γ-elemene were identified as major volatile components of Type VI trichome secretions from L. hirsutum f. typicum (hir) plant introduction (PI) 251303. These compounds predominated trichome secretions from five other hir accessions, whereas the methyl ketones 2-undecanone and 2-tridecanone predomi

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De Cuyper, Carolien, and Sofie Goormachtig. "Strigolactones in the Rhizosphere: Friend or Foe?" Molecular Plant-Microbe Interactions® 30, no. 9 (September 2017): 683–90. http://dx.doi.org/10.1094/mpmi-02-17-0051-cr.

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Strigolactones are well-known endogenous plant hormones that play a major role in planta by influencing different physiological processes. Moreover, ex planta, strigolactones are important signaling molecules in root exudates and function as host detection cues to launch mutualistic interactions with arbuscular mycorrhizal fungi in the rhizosphere. However, parasitic plants belonging to the Orobanchaceae family hijacked this communication system to stimulate their seed germination when in close proximity to the roots of a suitable host. As a result, the secretion of strigolactones by the plant

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Yang, Lin-Tong, Yi-Ping Qi, Huan-Xin Jiang, and Li-Song Chen. "Roles of Organic Acid Anion Secretion in Aluminium Tolerance of Higher Plants." BioMed Research International 2013 (2013): 1–16. http://dx.doi.org/10.1155/2013/173682.

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Approximately 30% of the world’s total land area and over 50% of the world’s potential arable lands are acidic. Furthermore, the acidity of the soils is gradually increasing as a result of the environmental problems including some farming practices and acid rain. At mildly acidic or neutral soils, aluminium(Al) occurs primarily as insoluble deposits and is essentially biologically inactive. However, in many acidic soils throughout the tropics and subtropics, Al toxicity is a major factor limiting crop productivity. The Al-induced secretion of organic acid (OA) anions, mainly citrate, oxalate,

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Vanstone, VA, and DC Paton. "Extrafloral Nectaries and Pollination of Acacia pycnantha Benth by Birds." Australian Journal of Botany 36, no. 5 (1988): 519. http://dx.doi.org/10.1071/bt9880519.

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Acacia pycnantha secreted extrafloral nectar during winter. This coincided with flowering and not with herbivore damage to phyllodes. Phyllodes with axillary racemes or phyllodes towards the tips of branches were more likely to have nectar secretions than phyllodes without axillary racemes or away from the tips of branches. Although most phyllodes were damaged by herbivores to some extent, this damage had occurred prior to the secretion of extrafloral nectar in winter. Further damage to phyllodes was negligible during winter. A variety of birds, including silvereyes and several species of hone

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Zhang, Wenzhu, Zhaoming Li, Lingshan Wang, Hui Liu, and Hong Liu. "Effect of Coriander Plants on Human Emotions, Brain Electrophysiology, and Salivary Secretion." Biology 10, no. 12 (December 6, 2021): 1283. http://dx.doi.org/10.3390/biology10121283.

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Coriander is a popular herb with versatile applications. However, the current research about coriander medicinal values have been mainly focusing on its extracts while lacking in the relationship between living coriander plants and emotion. Therefore, this study aims to investigate the effects of coriander plants on human emotions and physiological activities. The results showed that the main Volatile organic compounds (VOCs) of coriander plants were 2-ethyl-1-hexanol, d-limonene, eucalyptol, benzyl alcohol, Isophorone, dimethyl glutarate, α-terpineol, styrene, methyl methacrylate, α-pinene. C

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Qader, Suhailah Wasman, Lee Suan Chua, Janelle Fournier, and Mehmet Ozdemir. "Potential Effect of Medicinal Plants on the Prevention of Gastric Ulcer: Mechanism of Actions." Journal of Pharmacy and Nutrition Sciences 12 (December 27, 2022): 94–108. http://dx.doi.org/10.29169/1927-5951.2022.12.09.

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Medicinal plants have been widely studied to identify plant-based anti-gastric ulcer medicines. The mechanism of gastroprotective action is important to discover the potential lead compounds for drug development. All relevant articles between 2011 and 2021 focusing on Malaysian plants were collected and analyzed to understand the underlying pathways. Keywords include peptic ulcer, gastric ulcer, NSAIDs (Non-Steroidal Anti-Inflammatory Drugs), Helicobacterpylori, medicinal plant, gastroprotection, antiulcer, acid secretion, cytoprotective, and digestion processes were applied in the search engi

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Panchal, Poonam, Anthony J. Miller, and Jitender Giri. "Organic acids: versatile stress-response roles in plants." Journal of Experimental Botany 72, no. 11 (January 20, 2021): 4038–52. http://dx.doi.org/10.1093/jxb/erab019.

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Abstract Organic acids (OAs) are central to cellular metabolism. Many plant stress responses involve the exudation of OAs at the root–soil interface, which can improve soil mineral acquisition and toxic metal tolerance. Because of their simple structure, the low-molecular-weight OAs are widely studied. We discuss the conventional roles of OAs, and some newly emerging roles in plant stress tolerance. OAs are more versatile in their role in plant stress tolerance and are more efficient chelating agents than other acids, such as amino acids. Root OA exudation is important in soil carbon sequestra

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Abrahamian, Peter, Sujan Timilsina, Gerald V. Minsavage, Sushmita KC, Erica M. Goss, Jeffrey B. Jones, and Gary E. Vallad. "The Type III Effector AvrBsT Enhances Xanthomonas perforans Fitness in Field-Grown Tomato." Phytopathology® 108, no. 12 (December 2018): 1355–62. http://dx.doi.org/10.1094/phyto-02-18-0052-r.

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Type III secretion system effectors contribute to pathogenicity through various mechanisms. Recent surveys showed an increasing prevalence of the type III secretion effector avrBsT among Xanthomonas perforans strains. We hypothesized that the acquisition of avrBsT has a fitness advantage for the pathogen. The contribution of avrBsT to fitness on tomato was evaluated based on disease severity, in planta growth, competition, and recovery rates of wild-type (WT) and avrBsT mutant strains in greenhouse and field plants. GEV872 and GEV1001, representative strains of two phylogenomic groups of X. pe

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Kim, Ki-Suk, and Hyeung-Jin Jang. "Medicinal Plants Qua Glucagon-Like Peptide-1 Secretagogue via Intestinal Nutrient Sensors." Evidence-Based Complementary and Alternative Medicine 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/171742.

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Glucagon-like peptide-1 (GLP-1) participates in glucose homeostasis and feeding behavior. Because GLP-1 is rapidly inactivated by the enzymatic cleavage of dipeptidyl peptidase-4 (DPP4) long-acting GLP-1 analogues, for example, exenatide and DPP4 inhibitors, for example, liraglutide, have been developed as therapeutics for type 2 diabetes mellitus (T2DM). However, the inefficient clinical performance and the incidence of side effects reported on the existing therapeutics for T2DM have led to the development of a novel therapeutic strategy to stimulate endogenous GLP-1 secretion from enteroendo

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Koller-Peroutka, Marianne, Stefanie Krammer, Anselm Pavlik, Manfred Edlinger, Ingeborg Lang, and Wolfram Adlassnig. "Endocytosis and Digestion in Carnivorous Pitcher Plants of the Family Sarraceniaceae." Plants 8, no. 10 (September 24, 2019): 367. http://dx.doi.org/10.3390/plants8100367.

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Highly evolved carnivorous plants secrete digestive enzymes for degradation of trapped animals and absorb whole macromolecules from their prey by means of endocytosis. (1) Background: In the pitcher-plant family Sarraceniaceae, the production of enzymes is dubious and no evidence for endocytosis is known so far. (2) Methods: Heliamphora nutans, Darlingtonia californica, and nine taxa of Sarracenia are tested for cuticular pores, and for protease and endocytosis of the fluorescent protein analogue FITC-BSA, after 10–48 h of stimulation. (3) Results: Cuticular pores as a prerequisite for enzyme

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McConnaughey, Ted. "Acid secretion, calcification, and photosynthetic carbon concentrating mechanisms." Canadian Journal of Botany 76, no. 6 (June 1, 1998): 1119–26. http://dx.doi.org/10.1139/b98-066.

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Bicarbonate-based photosynthesis requires equal numbers of proton equivalents. Aquatic plants and photosynthetic symbioses can scavenge protons from ambient solutions, or they can manufacture protons through calcification. Both mechanisms are widely employed. This review examines how aquatic photoautotrophs couple calcification to photosynthesis, and the advantages and limitations of this physiology.Key words: calcification, calcium, carbonate, bicarbonate, photosynthesis, aquatic.

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Gao, Mengsheng, Max Teplitski, Jayne B. Robinson, and Wolfgang D. Bauer. "Production of Substances by Medicago truncatula that Affect Bacterial Quorum Sensing." Molecular Plant-Microbe Interactions® 16, no. 9 (September 2003): 827–34. http://dx.doi.org/10.1094/mpmi.2003.16.9.827.

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Earlier work showed that higher plants produce unidentified compounds that specifically stimulate or inhibit quorum sensing (QS) regulated responses in bacteria. The ability of plants to produce substances that affect QS regulation may provide plants with important tools to manipulate gene expression and behavior in the bacteria they encounter. In order to examine the kinds of QS active substances produced by the model legume M. truncatula, young seedlings and seedling exudates were systematically extracted with various organic solvents, and the extracts were fractionated by reverse phase C18

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Freitas, Cristina Setim, Cristiane Hatsuko Baggio, Bárbara Mayer, Ana Cristina dos Santos, André Twardowschy, Cid Aimbiré de Moraes Santos, and Maria Consuelo Andrade Marques. "Inhibition of Gastric H+, K+-ATPase Activity by Compounds from Medicinal Plants." Natural Product Communications 6, no. 9 (September 2011): 1934578X1100600. http://dx.doi.org/10.1177/1934578x1100600911.

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H+, K+-ATPase enzyme is a therapeutic target for the treatment of gastric disturbances. Several medicinal plants and isolated compounds inhibit the acid gastric secretion through interaction with the proton pump. In order to add new properties to some natural constituents, five compounds, a benzylated derivative of vincoside, a diterpene (abietic acid) and three alkaloids (cephaeline, vinblastine and vindoline), were tested for their activities on gastric H+,K+-ATPase isolated from rabbit stomach. All the compounds inhibited H+, K+-ATPase activity with varied potency. The IC50 value for benzyl

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Brijesh, S., Pundarikakshudu Tetali, and Tannaz J. Birdi. "Study on effect of anti-diarrheal medicinal plants on enteropathogenic Escherichia coli induced interleukin-8 secretion by intestinal epithelial cells." Alternative Medicine Studies 1, no. 1 (December 1, 2011): 16. http://dx.doi.org/10.4081/ams.2011.e16.

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Diarrhea is a major health concern in developing countries with enteropathogenic <em>Escherichia coli</em> (EPEC) being a leading cause of infantile diarrhea. Much of the pathology of EPEC infection is due to the inflammatory responses of infected intestinal epithelium through secretion of pro-inflammatory cytoki - nes such as interleukin (IL)-8. With medicinal plants gaining popularity as prospective antidiarrheal agents, we aimed to evaluate the effect of anti-diarrheal medicinal plants on secretion of IL-8 by epithelial cells in response to EPEC infection. The effect of the deco

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Patel, Hitendra Kumar, Patrizia Ferrante, Meng Xianfa, Sree Gowrinadh Javvadi, Sujatha Subramoni, Marco Scortichini, and Vittorio Venturi. "Identification of Loci of Pseudomonas syringae pv. actinidiae Involved in Lipolytic Activity and Their Role in Colonization of Kiwifruit Leaves." Phytopathology® 107, no. 6 (June 2017): 645–53. http://dx.doi.org/10.1094/phyto-10-16-0360-r.

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Bacterial canker disease caused by Pseudomonas syringae pv. actinidiae, an emerging pathogen of kiwifruit plants, has recently brought about major economic losses worldwide. Genetic studies on virulence functions of P. syringae pv. actinidiae have not yet been reported and there is little experimental data regarding bacterial genes involved in pathogenesis. In this study, we performed a genetic screen in order to identify transposon mutants altered in the lipolytic activity because it is known that mechanisms of regulation, production, and secretion of enzymes often play crucial roles in virul

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Regente, Mariana, Marcela Pinedo, Mercedes Elizalde, and Laura de la Canal. "Apoplastic exosome-like vesicles: A new way of protein secretion in plants?" Plant Signaling & Behavior 7, no. 5 (May 2012): 544–46. http://dx.doi.org/10.4161/psb.19675.

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Lerouge, Patrice, Anne-Catherine Fitchette-Laine, Aicha Chekkafi, Veronique Avidgor, and Loic Faye. "N-linked oligosaccharide processing is not necessary for glycoprotein secretion in plants." Plant Journal 10, no. 4 (October 1996): 713–19. http://dx.doi.org/10.1046/j.1365-313x.1996.10040713.x.

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Tsou, Lun K., María Lara-Tejero, Jordan RoseFigura, Zhenrun J. Zhang, Yen-Chih Wang, Jacob S. Yount, Matthew Lefebre, et al. "Antibacterial Flavonoids from Medicinal Plants Covalently Inactivate Type III Protein Secretion Substrates." Journal of the American Chemical Society 138, no. 7 (February 16, 2016): 2209–18. http://dx.doi.org/10.1021/jacs.5b11575.

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Dirnberger, Dietmar, Herta Steinkellner, Latifa Abdennebi, Jean-Jacques Remy, and Dick van de Wiel. "Secretion of biologically active glycoforms of bovine follicle stimulating hormone in plants." European Journal of Biochemistry 268, no. 16 (August 15, 2001): 4570–79. http://dx.doi.org/10.1046/j.1432-1327.2001.02384.x.

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