October 20, 2021 | Triazoles

A new application about1H-1,2,4-Triazol-5-amine

About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Sompalle, R; Roopan, SM; Priya, DD; Suthindhiran, K; Sarkar, G; Ranjith, M; Arunachalapandi, M or concate me.. Formula: C2H4N4

In 2020.0 CHEMISTRYSELECT published article about CARBOXYLIC-ACID DERIVATIVES; ANTITUMOR AGENTS; ANTIOXIDANT; INHIBITORS; DESIGN; POTENT in [Sompalle, Rajesh; Roopan, Selvaraj Mohana; Priya, Duraipandi Devi; Arunachalapandi, Murugan] Vellore Inst Technol, Sch Adv Sci, Dept Chem, Chem Heterocycles & Nat Prod Res Lab, Vellore 632014, Tamil Nadu, India; [Sompalle, Rajesh] Besant Theosoph Coll, Dept Chem, Chittoor 517325, Andhra Pradesh, India; [Suthindhiran, Krishnamurthy; Sarkar, Gargi] Vellore Inst Technol, Sch Biosci & Technol, Marine Biotechnol & Bioprod Lab, Vellore 632014, Tamil Nadu, India; [Ranjith, Malavika] Vellore Inst Technol, Sch Chem Engn, Vellore 632014, Tamil Nadu, India in 2020.0, Cited 45.0. The Name is 1H-1,2,4-Triazol-5-amine. Through research, I have a further understanding and discovery of 61-82-5. Formula: C2H4N4

Microwave synthetic methodologies were proposed for the preparation of positional isomeric dihydro-triazolo-pyrimido-acridines, 3a-j and 9a-h via friedlander synthesis using response surface methodology (RSM). The advantages of these methodologies over conventional methods are it provides good yields with short reaction times. Free radical scavenging and antifungal studies were performed for compounds 3a-j and 9a-h. The results of antioxidant assay revealed that compounds 3c, 3d and 9b exhibited excellent property whereas compounds 3a and 9a showed significant antifungal property against Aspergillus flavus (A.flavus) and Aspergillus niger (A. niger).

Reference:
Article; Safari, Niloufar; Shirini, Farhad; Tajik, Hassan; Journal of Molecular Structure; vol. 1201; (2020);,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Discovery of C2H4N4

Recommanded Product: 1H-1,2,4-Triazol-5-amine. About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Galimberti, F; Moretto, A; Papa, E or concate me.

An article Application of chemometric methods and QSAR models to support pesticide risk assessment starting from ecotoxicological datasets WOS:000523571900006 published article about DIFFERENT VALIDATION CRITERIA; REAL EXTERNAL PREDICTIVITY; CORRELATION-COEFFICIENT; IDENTIFICATION; ALTERNATIVES; EVALUATE; HAZARD in [Galimberti, Francesco; Moretto, Angelo] ASST Fatebenefratelli Sacco, Int Ctr Pesticides & Hlth Risk Prevent, ICPS, Milan, Italy; [Moretto, Angelo] Univ Milan, Dept Biomed & Clin Sci, Milan, Italy; [Papa, Ester] Univ Insubria, QSAR Res Unit Environm Chem & Ecotoxicol, Varese, Italy in 2020.0, Cited 45.0. Recommanded Product: 1H-1,2,4-Triazol-5-amine. The Name is 1H-1,2,4-Triazol-5-amine. Through research, I have a further understanding and discovery of 61-82-5

The EFSA ‘Guidance on tiered risk assessment for edge-of-field surface waters’ underscores the importance of in silico models to support the pesticide risk assessment. The aim of this work was to use in silico models starting from an available, structured and harmonized pesticide dataset that was developed for different purposes, in order to stimulate the use of QSAR models for risk assessment. The present work focuses on the development of a set of in silico models, developed to predict the aquatic toxicity of heterogeneous pesticides with incomplete/unknown toxic behavior in the water compartment. The generated models have good fitting performances (R-2 : 0.75-0.99), they are internally robust (Q(2) loo: 0.66-0.98) and can handle up to 30% of perturbation of the training set (Q(2) Imo: 0.64-0.98). The absence of chance correlation was guaranteed by low values of R-2 calculated on scrambled responses (R-2 Y-scr: 0.11-0.38). Different statistical parameters were used to quantify the external predictivity of the models (CCCext: 0.73-0.91, Q(2) ext-Fn: 0.53-0.96). The results indicate that all the best models are predictive when applied to chemicals not involved in the models development. In addition, all models have similar accuracy both in fitting and in prediction and this represents a good degree of generalization. These models may be useful to support the risk assessment procedure when experimental data for key species are missing or to create prioritization lists for the general a priori assessment of the potential toxicity of existing and new pesticides which fall in the applicability domain. (C) 2020 Elsevier Ltd. All rights reserved.

Recommanded Product: 1H-1,2,4-Triazol-5-amine. About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Galimberti, F; Moretto, A; Papa, E or concate me.

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HPLC of Formula: C2H4N4. About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Aoyanagi, T; Ikeya, S; Kobayashi, A; Kozaki, A or concate me.

HPLC of Formula: C2H4N4. Aoyanagi, T; Ikeya, S; Kobayashi, A; Kozaki, A in [Aoyanagi, Takuya; Ikeya, Shun; Kobayashi, Atsushi; Kozaki, Akiko] Shizuoka Univ, Fac Sci, Dept Biol, Suruga Ku, 836 Ohya, Shizuoka 4228529, Japan published Gene Regulation via the Combination of Transcription Factors in the INDETERMINATE DOMAIN and GRAS Families in 2020.0, Cited 58.0. The Name is 1H-1,2,4-Triazol-5-amine. Through research, I have a further understanding and discovery of 61-82-5.

INDETERMINATE DOMAIN (IDD) family proteins are plant-specific transcription factors. SomeArabidopsisIDD (AtIDD) proteins regulate the expression ofSCARECROW(SCR) by interacting with GRAS family transcription factors SHORT-ROOT (SHR) and SCR, which are involved in root tissue formation. Some AtIDD proteins regulate genes involved in the synthesis (GA3ox1) or signaling (SCL3) of gibberellic acid (GA) by interacting with DELLA proteins, a subfamily of the GRAS family. We analyzed the DNA binding properties and protein-protein interactions of select AtIDD proteins. We also investigated the transcriptional activity of the combination of AtIDD and GRAS proteins (AtIDD proteins combined with SHR and SCR or with REPRESSOR ofga1-3(RGA)) on the promoters ofSCR,SCL3, andGA3ox1by conducting a transient assay usingArabidopsisculture cells. Our results showed that theSCRpromoter could be activated by the IDD and RGA complexes and that theSCL3andGA3ox1promoters could be activated by the IDD, SHR, and SCR complexes, indicating the possibility that these complexes regulate and consequently coordinate the expression of genes involved in GA synthesis (GA3ox1), GA signaling (SCL3), and root formation (SCR).

HPLC of Formula: C2H4N4. About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Aoyanagi, T; Ikeya, S; Kobayashi, A; Kozaki, A or concate me.

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Recommanded Product: 61-82-5. About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Chkirate, K; Fettach, S; El Hafi, M; Karrouchi, K; Elotmani, B; Mague, JT; Radi, S; Faouzi, ME; Adarsh, NN; Essassi, E; Garcia, Y or concate me.

In 2020.0 J INORG BIOCHEM published article about HIRSHFELD SURFACE-ANALYSIS; X-RAY; BENZIMIDAZOLE; DERIVATIVES; OXIDATION; ISOMERISM; LIGAND; CO(II); ALPHA; ACID in [Chkirate, Karim; El Hafi, Mohamed; Elotmani, Bouchaib; Essassi, El Mokhtar] Univ Mohammed 5, Fac Sci, Dept Chim, LCOH, BP1014, Rabat 10100, Morocco; [Fettach, Saad; Faouzi, My El Abbes] Univ Mohammed V Rabat, Biopharmaceut & Toxicol Anal Res Team, Lab Pharmacol & Toxicol, Pharmacokinet Res Team,Fac Med & Pharm, Rabat, Morocco; [Karrouchi, Khalid] Mohamed V Univ, Fac Med & Pharm, Lab Analyt Chem & Bromatol, Rabat, Morocco; [Mague, Joel T.] Tulane Univ, Dept Chem, New Orleans, LA 70118 USA; [Radi, Smaail] Univ Mohamed I, Fac Sci, Dept Chim, LCAE, BP 524, Oujda 60000, Morocco; [Adarsh, N. N.; Garcia, Yann] Catholic Univ Louvain, Inst Condensed Matter & Nanosci, Mol Chem Mat & Catalysis IMCN MOST, Pl L Pasteur 1, B-1348 Louvain La Neuve, Belgium in 2020.0, Cited 61.0. The Name is 1H-1,2,4-Triazol-5-amine. Through research, I have a further understanding and discovery of 61-82-5. Recommanded Product: 61-82-5

Two Cu(II) coordination complexes, C1 and C2 of the formula [Cu(4)2(H2O)(2)], have been prepared by reaction between CuCl2 center dot 2H(2)O and 7-ethoxycarbonylmethyl-5-methyl-1,2,4[1,5-a]pyrimidine (L) in a 1:2 M:L molar ratio. The L molecule decomposes during the reaction process into 7-carboxy-5-methyl-[1,2,4]-triazolo[1,5-a]pyrimidine (4) through an intermediate, ethyl 2,2-dihydroxy-2-(5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl) acetate (5), which has been isolated and its crystal structure determined by X-ray diffraction. The X-ray analysis of the single crystals of [Cu(4)(2)(H2O)(2)] obtained from the slow evaporation of EtOH and MeOH, separately, revealed the formation of solvent induced polymorphs C1 and C2, respectively. The primary supramolecular synthon for C1 and C2 are six membered ring, and square shaped hydrogen bonded architecture, respectively. The self-assembly of such synthons resulted in a two dimensional hydrogen bonded sheet supported by O-H center dot center dot center dot O interactions. In addition, the antioxidant properties of the ligands and its complexes were evaluated in vitro using 1,1-diphenyl-2-picrylhydrazyl acid, 2,2′-azino-bis (3-ethylbenzothiazoline-6 sulfonic acid radical scavenging methods and ferric reducing antioxidant power.

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Recommanded Product: 1H-1,2,4-Triazol-5-amine. About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Yamaguchi, K; Yoshimura, Y; Nakagawa, S; Mezaki, H; Yoshimura, S; Kawasaki, T or concate me.

Recommanded Product: 1H-1,2,4-Triazol-5-amine. In 2019.0 BIOSCI BIOTECH BIOCH published article about NADPH OXIDASE RBOHD; KINASE BIK1; RICE; RECEPTOR; PROTEIN; BIOGENESIS; EFFECTOR; CLUSTERS; CEBIP; DRE2 in [Yamaguchi, Koji; Yoshimura, Yuya; Nakagawa, Shinya; Mezaki, Hirokazu; Yoshimura, Satomi; Kawasaki, Tsutomu] Kindai Univ, Grad Sch Agr, Dept Adv Biosci, Naka, Nara, Japan in 2019.0, Cited 24.0. The Name is 1H-1,2,4-Triazol-5-amine. Through research, I have a further understanding and discovery of 61-82-5.

The rice receptor-like cytoplasmic kinase 185 (OsRLCK185) interacts with the chitin receptor complex OsCERK1/CEBiP and positively regulates chitin-induced immune responses including MAP kinase activation, ROS production and defense gene expression. To elucidate the regulatory mechanisms of OsRLCK185-mediated immunity, we searched for interactors of OsRLCK185. OsDRE2a, rice homologs of the yeast Dre2 protein, were identified as novel interactors of OsRLCK185. OsDRE2a interacted with OsRLCK185 at plasma membrane. The conserved cysteine residues in CIAPIN1 domain of OsDRE2a were essential for tight interaction of OsRLCK185. OsDRE2a was phosphorylated by OsRLCK185. The expression of OsDRE2a and OsDRE2b was induced after chitin treatment. Reduction of OsDRE2a and OsDRE2b mRNA levels by RNA interference resulted in the decreased chitin-induced ROS production. Thus, it is likely that OsDRE2 regulates OsRLCK185-mediated immune responses.

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Category: Triazoles. About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Ibrahim, MA; Allehyani, ES or concate me.

Category: Triazoles. In 2020.0 HETEROCYCLES published article about BIOLOGICAL-ACTIVITIES; DERIVATIVES; BENZOFURAN in [Ibrahim, Magdy A.] Ain Shams Univ, Fac Educ, Dept Chem, Cairo, Egypt; [Allehyani, Esam S.] Umm Al Qura Univ, Univ Coll Al Jamoum, Dept Chem, Mecca, Saudi Arabia in 2020.0, Cited 25.0. The Name is 1H-1,2,4-Triazol-5-amine. Through research, I have a further understanding and discovery of 61-82-5.

The chemical behavior of 4,9-dimethoxy-5-oxo-5H-furo[3,2-g]-chromene-6-carbonitrile (khellin-6-carbonitrile) (1) was examined towards a variety of nitrogen nucleophiles. Some novel Schiff bases 5-7 were prepared from reaction of carbonitrile 1 with some heterocyclic amines. Treatment of carbonitrile 1 with some hydrazine derivatives in boiling ethanol afforded pyrazole derivatives 8-13. Khellin-6-carbonitrile (1) reacted with hydrazine hydrate and phenylhydrazine in acetic acid to afford angular heteroannulated furo[3′,2′:6,7]-chromeno [4,3-c]pyrazol-4(1H)-one derivatives 14 and 15. Triazolo[1,5-a]pyrimidine 16 and pyrimido[1,2-a]benzimidazole 17 were synthesized through ring opening and recyclization reactions of compound 1 with 3-amino-1,2,4-triazole and 2-aminobenzimidazole, respectively. Reaction of compound 1 with guanidine and cyanoguanidine in ethanolic potassium hydroxide solution resulted in ring conversion giving the novel angular furo [3 ‘,2’ :6,7] chromeno [4,3-d]pyrimidin-5-ones 18 and 19. The antimicrobial activity of the prepared compounds appeared distinguish activity against the selected microorganisms.

Category: Triazoles. About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Ibrahim, MA; Allehyani, ES or concate me.

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About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Abd El-Aleam, RH; George, RF; Hassan, GS; Abdel-Rahman, HM or concate me.. Product Details of 61-82-5

An article Synthesis of 1,2,4-triazolo[1,5-a]pyrimidine derivatives: Antimicrobial activity, DNA Gyrase inhibition and molecular docking WOS:000505596300067 published article about CATALYTIC INHIBITORS; DISCOVERY; DESIGN in [Abd El-Aleam, Rehab H.] Modern Univ Technol & Informat MTI, Fac Pharm, Pharmaceut Chem Dept, Cairo 11571, Egypt; [George, Riham F.; Hassan, Ghaneya S.] Cairo Univ, Fac Pharm, Pharmaceut Chem Dept, Cairo 11562, Egypt; [Hassan, Ghaneya S.] Badr Univ, Fac Pharm, Pharmaceut Chem Dept, Cairo 11829, Egypt; [Abdel-Rahman, Hamdy M.] Assiut Univ, Fac Pharm, Med Chem Dept, Assiut 71526, Egypt; [Abdel-Rahman, Hamdy M.] Nahda Univ, Fac Pharm, Pharmaceut Chem Dept, Bani Suwayf, Egypt in 2020.0, Cited 20.0. The Name is 1H-1,2,4-Triazol-5-amine. Through research, I have a further understanding and discovery of 61-82-5. Product Details of 61-82-5

A series of 1,2,4-triazolo [1,5-a]pyrimidine derivatives was designed, synthesized and screened for their antibacterial and antifungal activities as well as their safety profile. Compounds 2b, 3a, 6b, 8b, 8c, 8h, 9a,b, 10b, 11a,b and 12a,b showed high activity against Gram-positive and Gram-negative bacteria with MIC values ranging from 0.25 to 2.0 mu g/mL. Many compounds were safe with no cytotoxicity against human embryonic kidney and red blood cells at concentration up to 32 mu g/mL. Moreover, compound 9a showed the highest inhibitory activity against DNA Gyrase with IC50 = 0.68 mu M compared to ciprofloxacin IC50 = 0.85 mu M. Molecular docking at DNA Gyrase active site revealed binding mode and docking scores comparable to that of ciprofloxacin confirming their antibacterial activity via DNA Gyrase inhibition.

About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Abd El-Aleam, RH; George, RF; Hassan, GS; Abdel-Rahman, HM or concate me.. Product Details of 61-82-5

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Application In Synthesis of 1H-1,2,4-Triazol-5-amine. About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Zhang, CY; Fang, H; Shi, XT; He, F; Wang, RY; Fan, JB; Bai, PF; Wang, JY; Park, CH; Bellizzi, M; Zhou, XP; Wang, GL; Ning, YS or concate me.

Recently I am researching about BLAST RESISTANCE; PHYTOPHTHORA-INFESTANS; PROTEASES; DEFENSE; IMMUNITY; TARGETS; BBI; PATHOGENS; TRIGGERS; ENCODES, Saw an article supported by the National Key Research and Development Program of China [2016YFD0100600]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31822041, 31972225]. Published in WILEY in HOBOKEN ,Authors: Zhang, CY; Fang, H; Shi, XT; He, F; Wang, RY; Fan, JB; Bai, PF; Wang, JY; Park, CH; Bellizzi, M; Zhou, XP; Wang, GL; Ning, YS. The CAS is 61-82-5. Through research, I have a further understanding and discovery of 1H-1,2,4-Triazol-5-amine. Application In Synthesis of 1H-1,2,4-Triazol-5-amine

Bowman-Birk trypsin inhibitors (BBIs) play important roles in animal and plant immunity, but how these protease inhibitors are involved in the immune system remains unclear. Here, we show that the rice (Oryza sativa) BBI protein APIP4 is a common target of a fungal effector and an NLR receptor for innate immunity. APIP4 exhibited trypsin inhibitor activityin vitroandin vivo. Knockout ofAPIP4in rice enhanced susceptibility, and overexpression ofAPIP4increased resistance to the fungal pathogenMagnaporthe oryzae. TheM. oryzaeeffector AvrPiz-t interacted with APIP4 and suppressed APIP4 trypsin inhibitor activity. By contrast, the rice NLR protein Piz-t interacted with APIP4, enhancing APIP4 transcript and protein levels, and protease inhibitor activity. Our findings reveal a novel host defence mechanism in which a host protease inhibitor targeted by a fungal pathogen is protected by an NLR receptor.

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Computed Properties of C2H4N4. About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Shaikh, M; Siddiqui, S; Zafar, H; Naqeeb, U; Subzwari, F; Imad, R; Khan, KM; Choudhary, MI or concate me.

In 2020.0 MED CHEM published article about END-PRODUCTS; NONENZYMATIC GLYCATION; MAILLARD REACTION; ACCURATE DOCKING; LENS PROTEINS; INHIBITORS; DERIVATIVES; GLIDE; FRUCTOSYLATION; AMINOGUANIDINE in [Shaikh, Muniza; Zafar, Humaira; Subzwari, Fakiha; Imad, Rehan; Choudhary, Muhammad I.] Univ Karachi, Dr Panjwani Ctr Mol Med & Drug Res, Int Ctr Chem & Biol Sci, Karachi 75270, Pakistan; [Siddiqui, Salman; Naqeeb, Uzma; Khan, Khalid M.; Choudhary, Muhammad I.] Univ Karachi, HEJ Res Inst Chem, Int Ctr Chem & Biol Sci, Karachi 75270, Pakistan; [Khan, Khalid M.] Imam Abdulrahman Bin Faisal Univ, Inst Res & Med Consultat IRMC, Dept Clin Pharm, POB 31441, Dammam, Saudi Arabia; [Choudhary, Muhammad I.] King Abdulaziz Univ, Dept Biochem, Fac Sci, Jeddah 21412, Saudi Arabia in 2020.0, Cited 59.0. The Name is 1H-1,2,4-Triazol-5-amine. Through research, I have a further understanding and discovery of 61-82-5. Computed Properties of C2H4N4

Background: Advanced glycation end products (AGEs) are known to be involved in the pathophysiology of diabetic complications, neurodegenerative diseases, and aging. Preventing the formation of AGEs can be helpful in the management of these diseases. Objectives: Two classes of previously synthesized traizole Schiff’s bases (4H-1,2,4-triamle-4-Schiff’s bases 1-14, and 4H-1,2,4-triazole-3-Schiff’s bases 15-23) were evaluated for their in vitro antiglycation activity. Methods: In vitro fructose-mediated human serum albumin (HSA) glycation assay was employed to assess the antiglycation activity of triazole Schiff’s bases. The active compounds were subjected to cytotoxicity analysis by MTT assay on mouse fibroblast (3T3) cell line. Molecular docking and simulation studies were carried out to evaluate the interactions and stability of compounds with HSA. Anti-hyperglycemic and antioxidant activities of selected non-cytotoxic compounds were evaluated by in vitro a-glucosidase inhibition, and DPPH free radical scavenging assays, respectively. Results: Compound 1 (IC50 =47.30 +/- 0.38 mu M) from 4H-1,2,4-triazole-4-Schiff’s bases has exhibited antiglycation activity comparable to standard rutin (IC50 =54.5 +/- 0.05 mu M) along with a stable RMSD profile in MD simulation studies. Compound 1 also exhibited a potent a-glucosidase inhibitory activity, and moderate antioxidant property. Other derivatives showed a weak antiglycation activity with IC50 values between 248.1-637.7 mu M. Compounds with potential antiglycation profile were found to be non-cytotoxic in a cellular assay. Conclusion: The study identifies triazole Schiff s bases active against fructose-mediated glycation of HSA, thus indicates their potential against late diabetic complications due to production of advancedend products (AGEs).

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About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Silva, EN; Silveira, JAG; Aragao, RM; Vieira, CF; Carvalho, FEL or concate me.. Recommanded Product: 1H-1,2,4-Triazol-5-amine

An article Photosynthesis impairment and oxidative stress in Jatropha curcas exposed to drought are partially dependent on decreased catalase activity WOS:000453222200002 published article about HYDROGEN-PEROXIDE; WATER-STRESS; MESOPHYLL CONDUCTANCE; ASCORBATE PEROXIDASE; OSMOTIC ADJUSTMENT; PLANTS; MECHANISMS; LEAVES; ACCLIMATION; SALINITY in [Silva, Evandro Nascimento] Univ Estadual Ceara, Fac Educ Ciencias & Letras Sertao Cent, BR-63900000 Quixada, Ceara, Brazil; [Silveira, Joaquim A. G.; Vieira, Cinthya F.; Carvalho, Fabricio E. L.] Univ Fed Ceara, Dept Bioquim & Biol Mol, Lab Metab Plantas, Campus Pici,CP 6020, BR-60451970 Fortaleza, Ceara, Brazil; [Aragao, Rafael M.] UFRA, Campus Capanema, BR-68700030 Capanema, Para, Brazil in 2019.0, Cited 58.0. Recommanded Product: 1H-1,2,4-Triazol-5-amine. The Name is 1H-1,2,4-Triazol-5-amine. Through research, I have a further understanding and discovery of 61-82-5

Catalase (CAT) is a crucial enzyme to control the excess peroxisomal H2O2 produced during photorespiration. In many plant species, this enzymatic activity decreases in response to drought but its specific role in photosynthesis and redox metabolism is still poorly understood. In this study was tested the hypothesis that photosynthetic and oxidative changes induced by drought are dependent on CAT activity. For this, Jatropha curcas, a drought-tolerant species, was subjected to water deficit and CAT inhibition by a specific pharmacological inhibitor (3-AT), in order to decrease the activity of this enzyme to a similar level as compared to that exhibited by water deficit-treated plants. The CO2 assimilation and other photosynthetic-related parameters were decreased more intensively by drought as compared to plants exposed to 3-AT, whereas the photochemical efficiency of PSII remained unchanged in both conditions. Non-photochemical quenching was strongly increased in drought-treated plants, but only slightly increased in 3-AT treatment. Membrane integrity and lipid peroxidation were strongly increased in both treatments, while H2O2 content was increased only by drought imposition. Ascorbate peroxidase and superoxide dismutase activities were increased in both drought and 3-AT treatments, but glycolate oxidase was strongly increased only in drought-stressed plants. The obtained results evidence that CO2 assimilation and oxidative protection in leaves of Jatropha curcas plants exposed to water deficit are greatly dependent on drought-induced CAT activity deficiency.