Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 15

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1

Evidence for a role of Ethylene-Insensitive 2 gene in the regulation of the oxidative stress response in Arabidopsis

100%
Cao S., Jiang S., Zhang R.
Acta Physiologiae Plantarum
|
2006
|
tom 28
|
nr 5
The Arabidopsis Ethylene-Insensitive 2 (EIN2) gene has been shown to be involved in mediating the oxidative stress response; however, little is known about the underlying mechanisms involved. In this study, we found that the ethylene-insensitive mutant ein2-1 showed enhanced tolerance to oxidative stresses caused by both paraquat (PQ) and hydrogen peroxide as well as alleviated oxidative damage. Moreover, higher transcript levels of a choroplast Cu/Zn superoxide dismutase gene CSD2 and a catalase gene CAT3 and, consequently, higher activities of superoxide dismutase (SOD) and catalase (CAT), were detected in ein2-1 plants than in wild-type plants in the abtence or presence of PQ. These retults suggest that the ein2-1mutation results in constitutive activation of CSD2 and CAT3 genes and increases in the activities of SOD and CAT and, consequently, enhanced oxidative stress tolerance.
2

Heat stress induces actin cytoskeletal reorganization and transcript profiles of vegetative profilins and actin depolymerizing factors (ADFs) in Arabidopsis

88%
Fan T., Wang R., Xiang Y., An L., Cao S.
Acta Physiologiae Plantarum
|
2016
|
tom 38
|
nr 02
3

Photosynthetic performance in Antarctic lichens with different growth forms reflect the diversity of lichenized algal adaptation to microhabitats

88%
Cao S., Zhang J., Zheng H., Liu C., Zhou Q.
Polish Polar Research
|
2015
|
tom 36
|
nr 2
4

AtGRP7 is involved in the regulation of abscisic acid and stress responses in Arabidopsis

88%
Cao S., Jiang L., Song S., Jing R., Xu G.
Cellular and Molecular Biology Letters
|
2006
|
tom 11
|
nr 4
The Arabidopsis AtGRP7 gene, encoding a glycine-rich RNA-binding protein, has been shown to be involved in the regulation of a circadian-regulated negative feedback loop. However, little is known about the role of AtGRP7 in mediating abscisic acid (ABA) and stress responses. Here, we show that AtGRP7 plays a role in both. AtGRP7 was repressed by ABA, high salt and mannitol. Disruption of AtGRP7 by T-DNA insertion led to hypersensitive responses to ABA in both seed germination and root growth assays. The atgrp7-1 mutant was also hypersensitive to osmotic stress conditions, such as high salt and high concentrations of mannitol. In addition, the atgrp7-1 mutant plants accumulated significantly higher transcript levels of two ABA-and stress-inducible genes, RD29A and RAB18, compared with the wild-type plants. Taken together, these results suggest that AtGRP7 is involved in the regulation of ABA and stress responses.
5

Isolation and characterization of a novel cadmium-sensitive mutant in Arabidopsis

76%
Lv S., Sun Z., Qian J., Ma X., Yu B., Chen X., Cao S.
Acta Physiologiae Plantarum
|
2012
|
tom 34
|
nr 3
Although some genes involved in heavy metal detoxification and tolerance have been identified in plants, the mechanisms underlying heavy metal resistance remain to be elucidated further. To investigate its molecular mechanisms, a forward genetic screen was performed for identifying Arabidopsis (Arabidopsis thaliana) cadmium (Cd)-sensitive mutants. Here we report a novel cms1-1 (cadmium-sensitive) mutant, which defines a genetic locus involved in the regulation of cadmium and lead (Pb) resistance in Arabidopsis. cms1-1 plants were hypersensitive to Cd but resistant to Pb as well as oxidative stress mediated by hydrogen peroxide and methyl viologen. Genetic analysis indicated that cms1-1 is a recessive mutation in a single nuclear gene. When subjected to Cd or Pb stress, higher Cd or lower Pb content was detected in cms1-1 plants than in wild-type plants, respectively. The cms1-1 mutation altered the expression pattern of some Cd/ Pb stress-related genes, including AtPDR8 and AtPDR12, which was associated with changes of Cd and Pb contents. In addition, Cd hypersensitivity/enhanced Pb resistance mediated by cms1-1 is glutathione (GSH)- independent. The results suggest that CMS1 plays distinct roles in the regulation of Cd and Pb resistance mainly through a GSHindependent AtPDR12/AtPDR8-mediated mechanism.
6

MAX4 gene is involved in the regulation of low inorganic phosphate stress responses in Arabidopsis thaliana

76%
Jiang L., Jian H., Qian J., Sun Z., Wei Z., Chen X., Cao S.
Acta Physiologiae Plantarum
|
2011
|
tom 33
|
nr 3
MAX4 gene has been shown to be involved in the regulation of shoot branching in Arabidopsis (Arabidopsis thaliana). However, little is known about the role of MAX4 gene in low inorganic phosphate (Pi) stress response in Arabidopsis. Here we showed that MAX4 gene is involved in the regulation of low Pi stress response in Arabidopsis. MAX4 gene was repressed by low Pi stress, and the max4 mutants showed lower anthocyanin content and longer primary root length. In addition, max4 mutant plants also displayed altered root architecture such as increased root-to-shoot ratio, lower lateral root number and root hair density compared with wild-type plants under low Pi stress. Higher total Pi contents were detected in shoots and roots of max4 plants than those of wild-type plants when subjected to low Pi stress, which was associated, at least in part, with increase in expression of WRKY75 as well as AtPT1 and AtPT2 genes encoding high-affinity Pi transporters. Taken together, all these results suggest that MAX4 gene mediates low Pi stress response, at least in part, by regulating the expression of WRKY75 as well as AtPT1 and AtPT2 genes.
7

Morphological differentiation and phylogenetic homogeneity in Usnea aurantiaco-atra reveal the complexity of lichen symbiosis

76%
Cao S., Zheng H., Cao Y., Liu C., Zhu L., Peng F., Zhou Q.
Polish Polar Research
|
2018
|
tom 39
|
nr 2
8

Cold treatment enhances lead resistance in Arabidopsis

76%
Cao S., Bian X., Jiang S., Chen Z., Jian H., Sun Z.
Acta Physiologiae Plantarum
|
2010
|
tom 32
|
nr 1
As sessile organisms, plants usually experience several stresses simultaneously. It was shown that stress cross-tolerance may be induced by different stressors, including biotic factors as well as heavy metal, hypoxia, ultraviolet-B radiation, heat, high salt, drought, and cold stresses. However, it is unclear whether there is a cross-tolerance toward cold and lead (Pb) stresses in Arabidopsis. In this study, we showed that cold pretreatment enhanced Pb(II) resistance in Arabidopsis, as indicated by lower reduction of root length, fresh weight, and chlorophyll content in the cold-treated plants than the control ones. In the cold-treated seedlings, lower Pb contents were detected in roots and shoots in comparison to the control. This was associated, at least in part, with the activation of the expression of AtPDR12 gene, a pump excluding Pb(II) and/ or Pb(II)-containing toxic compounds from the cytoplasm to the exterior of the cell. This finding was further supported by genetic evidence showing that cold treatment was unable to enhance resistance of atpdr12 mutant to Pb(II) stress but could enhance Pb(II) resistance of the wild type. In addition, we also found that cold-induced enhanced Pb(II) resistance was glutathione-independent. Taken together, all these results suggest that cold treatment enhanced Pb(II) resistance in Arabidopsis, at least in part, by activating the expression of AtPDR12 gene.
9

Beta-Amino-butyric acid protects Arabidopsis against low potassium stress

64%
Cao S., Jiang L., Yuan H., Jian H., Ren G., Bian X., Zou J., Chen Z.
Acta Physiologiae Plantarum
|
2008
|
tom 30
|
nr 3
Potassium (K+) is an essential element for plant growth and development. Under low-K+ stress, Arabidopsis (Arabidopsis thaliana) plants show K+-deficient symptoms, typically leaf chlorosis and subsequent inhibition of plant growth and development. The nonprotein amino acid b-amino-butyric acid (BABA) has been shown to have roles in protecting Arabidopsis against various pathogens as well as drought, high salinity, and cadmium stresses; However, little is known about the role of BABA in protecting Arabidopsis against low-K+ stress. Here, we showed that BABA protects Arabidopsis against low-K+ stress by increasing K+ uptake under low-K+ condition. Leaf chlorosis of plants subjected to low-K+ stress was abolished by BABA pretreatment, as indicated by a lower reduction in chlorophyll content in BABA-treated plants than watertreated plants. Low-K+ stress-induced decreases in both lateral root length and the numbers of lateral roots were improved by BABA pretreatment. In addition, under low-K+ stress, a significantly higher K+ concentration was detected in BABA-pretreated plants than in watertreated plants, and the transcript levels of AtHAK5 and LKS1 genes involved in K+ uptake in BABA-treated plants were higher than those of water-treated plants. Taken together, our results suggest that BABA plays a role in enhancing low-K+ stress tolerance by increasing K+ uptake, at least in part, via modulation of AtHAK5 and LKS1 under low-K+ condition.
10

A role for Ethylene-Insensitive 2 gene in the regulation of the ultraviolet-B response in Arabidopsis

64%
Sun Z., Wen C., Chen Z., Zhang Q., Fang L., Li J., Jiang S., Cao S.
Acta Physiologiae Plantarum
|
2011
|
tom 33
|
nr 3
The Arabidopsis Ethylene-Insensitive 2 (EIN2) gene was shown to be involved in the regulation of abiotic and biotic stresses, such as ozone stress, high salt, oxidative stress, lead and disease resistances. However, it is unclear whether EIN2 plays a role in mediating the ultraviolet (UV)-B response in Arabidopsis. Here, we show that EIN2 is involved in the regulation of the UV-B response. The EIN2 expression was repressed by UV-B exposure, and ein2-1 mutant plants were more tolerant to UV-B than wild-type plants, as indicated by analysis of survival rates. Significant higher increases in flavonoids and anthocyanins were detected in ein2-1 plants than in wild-type plants treated with or without UV-B treatment, which was associated, at least in part, with constitutively increased transcript levels of two key genes CHALCONE SYNTHASE (CHS) and CINNAMATE 4-HYDROXYLASE (C4H) involved in the biosynthesis pathway of flavonoid and anthocyanins. These results suggest that EIN2 mediates the UV-B response, at least in part, via the modulation of expression of CHS and C4H genes.
11
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Relationship of adiponectin, leptin, visfatin and IGF-1 in cow’s venous blood and venous cord blood with calf birth weight

52%
Shen L., Zhu Y., Xiao J., Deng J., Peng G., Zuo Z., Yu S., Ma X., Zhong Z., Ren Z., Zhou Z., Liu H., Zong X., Cao S.
Polish Journal of Veterinary Sciences
|
2019
|
tom 22
|
nr 3
12

Evaluation of the protective effect of a prime-boost strategy with plasmid DNA followed by recombinant adenovirus expressing BmAMA1 as vaccines against Babesia microti infection in hamster

52%
Wang G., Yu L., Efstratiou A., Moumouni P. F. A., Liu M., Guo H., Gao Y., Cao S., Zhou M., Li J., Ringo A. E., Xuan X.
Acta Parasitologica
|
2018
|
tom 63
|
nr 2
13

Prime-boost vaccination with plasmid DNA followed by recombinant vaccinia virus expressing BgGARP induced a partial protective immunity to inhibit Babesia gibsoni proliferation in dogs

52%
Cao S., Mousa A. A., Aboge G. O., Kamyingkird K., Zhou M., Moumouni P. F. A., Terkawi M. A., Masatani T., Nishikawa Y., Suzuki H., Fukumoto S., Xuan X.
Acta Parasitologica
|
2013
|
tom 58
|
nr 4
A heterologous prime-boost vaccination regime with DNA and recombinant vaccinia virus (rvv) vectors expressing relevant antigens has been shown to induce effective immune responses against several infectious pathogens. In this study, we describe the effectiveness of the prime-boost strategy by immunizing dogs with a recombinant plasmid followed by vaccinia virus, both of which expressed the glutamic acid-rich protein (BgGARP) of Babesia gibsoni. The dogs immunized with the prime-boost regime developed a significantly high level of specific antibodies against BgGARP when compared with the control groups. The antibody level was strongly increased after a booster immunization with a recombinant vaccinia virus. Two weeks after the booster immunization with a recombinant vaccinia virus expressing BgGARP, the dogs were challenged with B. gibsoni parasite. The dogs immunized with the prime-boost regime showed partial protection, manifested as a significantly low level of parasitemia. These results indicated that this type of DNA/rvv prime-boost immunization approach may have use against B. gibsoni infection in dogs.
14

A PCR survey of vector-borne pathogens in different dog populations from Turkey

52%
Guo H., Sevinc F., Ceylan O., Sevinc M., Ince E., Gao Y., Moumouni P. F. A., Liu M., Efstratiou A., Wang G., Cao S., Zhou M., Jirapattharasate C., Ringo A. E., Zheng W., Xuan X.
Acta Parasitologica
|
2017
|
tom 62
|
nr 3
15
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Characterization of serum adiponectin and leptin in healthy perinatal dairy cows or cows with ketosis, and their effects on ketosis involved indices

46%
Shen L., Qian B., Xiao J., Zhu Y., Hussain S., Deng J., Peng G., Zuo Z., Zou L., Yu S., Ma X., Zhong Z., Ren Z., Wang Y., Liu H., Zhou Z., Cai D., Hu Y., Zong X., Cao S.
Polish Journal of Veterinary Sciences
|
2020
|
tom 23
|
nr 3
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.