Brazilian Journal of Plant Physiology最新文献_第4页

Strategies to increase zinc deficiency tolerance and homeostasis in plants 提高植物锌缺乏耐受性和体内平衡的策略

Brazilian Journal of Plant Physiology Pub Date : 2012-01-01 DOI: 10.1590/S1677-04202012000100002

A. Henriques, A. Chalfun-Júnior, M. Aarts

引用次数: 29

Effects of hydric deficiency on gas exchange parameters and metabolism of Eucalyptus grandis clones 水分缺乏对巨桉无性系气体交换参数和代谢的影响

Brazilian Journal of Plant Physiology Pub Date : 2011-12-01 DOI: 10.1590/S1677-04202011000400002

Renata Bruna dos Santos Coscolin, F. Broetto, J. A. Marchese, Marcos Antonio Castillo Campohermoso, M. V. Paladini

引用次数: 8

Intraspecific variation in sensitivity to ambient ultraviolet-B radiation in growth and yield characteristics of eight soybean cultivars grown under field conditions 大田条件下8个大豆品种生长和产量特性对环境紫外线b辐射敏感性的种内变化

Brazilian Journal of Plant Physiology Pub Date : 2011-01-01 DOI: 10.1590/S1677-04202011000300003

S. Baroniya, S. Kataria, G. P. Pandey, K. Guruprasad

{"title":"Intraspecific variation in sensitivity to ambient ultraviolet-B radiation in growth and yield characteristics of eight soybean cultivars grown under field conditions","authors":"S. Baroniya, S. Kataria, G. P. Pandey, K. Guruprasad","doi":"10.1590/S1677-04202011000300003","DOIUrl":"https://doi.org/10.1590/S1677-04202011000300003","url":null,"abstract":"The present study was conducted with eight cultivars of soybean (Glycine max) to determine the effect of exclusion of solar UV-B on the vegetative growth (plant height, leaf area, no. of nodes), UV absorbing compounds (implicated in UV protection) and crop yield (No. of pods and seed weight) and to determine the cultivar difference in their sensitivity to ambient UV-B. Exclusion of solar UV-B enhanced the vegetative growth and yield of all the soybean cultivars. The results showed a significant inverse association between the enhancement in vegetative growth and number of pods among the cultivars tested, indicating differences in the carbon partitioning amongst the cultivars by the way of exclusion of solar UV-B. NRC-7, Pusa-24 and JS-335 showed maximum promotion in vegetative growth and less enhancement in crop yield after solar UV-B exclusion. Kalitur, JS71-05, Hardee, PK-472 and PK-1029 showed improved performance both in terms of number of pods/plant and seed weight after solar UV-B exclusion. An enhancement in the crop yield by exclusion of solar UV-B indicated poor response of the cultivar to the ambient solar UV-B; these cultivars would be more suitable at latitudes, which received less UV-B. According to UV-SI, sensitivity of eight Indian soybean cultivars to ambient level of UV-B (280-320 nm) radiation had the following descending order; PK-472 > JS-335 > Hardee > Kalitur > JS71-05 > Pusa-24 > NRC-7 > PK-1029. These findings suggest the way to select the best-suited cultivar for particular latitude.","PeriodicalId":9278,"journal":{"name":"Brazilian Journal of Plant Physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78757325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 26

Inoculation with mycorrhizal fungi modifies proline metabolism and increases chromium tolerance in pepper plants (Capsicum annuum L.) 接种菌根真菌改变辣椒植株脯氨酸代谢和提高对铬的耐受性

Brazilian Journal of Plant Physiology Pub Date : 2011-01-01 DOI: 10.1590/S1677-04202011000100004

M. Ruscitti, M. Arango, M. Ronco, J. Beltrano

{"title":"Inoculation with mycorrhizal fungi modifies proline metabolism and increases chromium tolerance in pepper plants (Capsicum annuum L.)","authors":"M. Ruscitti, M. Arango, M. Ronco, J. Beltrano","doi":"10.1590/S1677-04202011000100004","DOIUrl":"https://doi.org/10.1590/S1677-04202011000100004","url":null,"abstract":"In general, heavy metals interfere with several physiological processes and reduce plant growth. Plants naturally establish symbiotic associations with soil microorganisms, such as mycorrhizal fungi. The aim of this research was to determine if inoculation with mycorrhizal fungi increases tolerance to Cr, evidenced by growth and biochemical parameters and the effect on roots membranes in Capsicum annum. Plants were either non-inoculated or inoculated with Glomus mosseae or Glomus intraradices, and grown in the presence of different concentration of Cr (K2Cr2O4) in soil. Pepper plants grown without Cr behaved as mycotrophic species. At the highest concentration (200 μM K2Cr2O4), Cr reduced root colonization by G. mosseae or G. intraradices (to 23 and 20% respectively). Moderate and high concentrations of Cr reduced all growth parameters. The interaction of inoculation and Cr increased leaf chlorophyll and proline content while reduced the leaf protein and root proline content. Carotenoid content was not affected by treatments. High Cr concentrations increased significantly electrolytes leakage in roots, either non-inoculated or inoculated plants. At the highest Cr concentration, inoculated plants had double the biomass of non-inoculated plants. Cr content in roots of inoculated plants was significantly higher than in non-inoculated plants. Chromium accumulation was low in leaves and showed no differences between treatments. Mycorrhization increased pepper plant tolerance to Cr in the soil, modifying proline metabolism to assure a more efficient response.","PeriodicalId":9278,"journal":{"name":"Brazilian Journal of Plant Physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80374592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 31

Bioactive compounds and antioxidant capacities in the flavedo tissue of two citrus cultivars under low temperature 低温条件下两种柑桔黄组织中生物活性成分及抗氧化能力的比较

Brazilian Journal of Plant Physiology Pub Date : 2011-01-01 DOI: 10.1590/S1677-04202011000300004

M. Mohammadian, Z. Mobrami, R. H. Sajedi

引用次数: 18

Changes in growth, pigment content and antioxidants in the root and leaf tissues of wheat plants under the influence of exogenous salicylic acid 外源水杨酸对小麦根系和叶片生长、色素含量及抗氧化剂的影响

Brazilian Journal of Plant Physiology Pub Date : 2011-01-01 DOI: 10.1590/S1677-04202011000300005

G. Sahu, S. C. Sabat

{"title":"Changes in growth, pigment content and antioxidants in the root and leaf tissues of wheat plants under the influence of exogenous salicylic acid","authors":"G. Sahu, S. C. Sabat","doi":"10.1590/S1677-04202011000300005","DOIUrl":"https://doi.org/10.1590/S1677-04202011000300005","url":null,"abstract":"The effect of various concentrations of salicylic acid (SA) on the growth, pigment content and the activity of antioxidants was investigated in the laboratory grown wheat plants. The root and shoot growth was affected at higher concentration of SA in early days of growth. The activities of catalase (CAT), ascorbate peroxidase (APX) and guaicol-specific peroxidase (POX) declined with the application of SA (50, 500 and 1000 µM), the decrease being more pronounced with the increase in SA concentrations both in the root and leaf tissues. On the other hand superoxide dismutase (SOD) activity increased with the application of SA. At low concentrations, SA has no effect on the activities of these enzymes in vitro. Salicylic acid at higher concentrations (5- and 10 mM) though inhibited CAT activity, the activities of APX and POX remain unchanged. High concentration of SA increased the level of H2O2 and malondialdehyde both in root and leaf tissues. Thus, SA though has been reported to be a signal molecule for inducing various physiological and morphological attributes in plants, this study indicated the negative effect of the compound on growth and the activity of major enzymatic antioxidants.","PeriodicalId":9278,"journal":{"name":"Brazilian Journal of Plant Physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78195590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 25

Foliar application of Burkholderia sp. strain TNAU-1 leads to activation of defense responses in chilli (Capsicum annuum L.) 叶面施用伯克霍尔德氏菌(Burkholderia)菌株TNAU-1导致辣椒防御反应激活

Brazilian Journal of Plant Physiology Pub Date : 2011-01-01 DOI: 10.1590/S1677-04202011000400003

Srinivasan Madhavan, V. Paranidharan, R. Velazhahan

{"title":"Foliar application of Burkholderia sp. strain TNAU-1 leads to activation of defense responses in chilli (Capsicum annuum L.)","authors":"Srinivasan Madhavan, V. Paranidharan, R. Velazhahan","doi":"10.1590/S1677-04202011000400003","DOIUrl":"https://doi.org/10.1590/S1677-04202011000400003","url":null,"abstract":"Induction of phenolics, peroxidase (PO), polyphenol oxidase (PPO), chitinase and thaumatin-like proteins (TLP) in leaves of chilli (Capsicum annuum L.) in response to foliar application with a biocontrol agent Burkholderia sp. strain TNAU-1 was studied. Chilli plants, when sprayed with Burkholderia sp. strain TNAU-1 showed increase in phenolic content one day after application and the maximum accumulation was observed seven days after treatment. Three new peroxidase isozymes (PO-1, PO-2 and PO-3) were induced in chilli leaves upon treatment with Burkholderia sp. strain TNAU-1. The activity of all the peroxidases was at the maximum level three days after treatment and subsequently decreased. Protein extracts obtained from Burkholderia sp. strain TNAU-1 treated plants exhibited a major polyphenol oxidase (PPO-1) one day after treatment. The activity of PPO-1 subsequently decreased, but continuously present throughout the experimental period of 15 days. Western blot analysis of protein extracts from Burkholderia sp. strain TNAU-1 treated chilli leaves revealed that two TLPs with sizes of 23 and 25 kDa and a chitinase with an apparent molecular weight of 28 kDa were induced three days after treatment.","PeriodicalId":9278,"journal":{"name":"Brazilian Journal of Plant Physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84679624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

The influence of processing and long-term storage on the antioxidant metabolism of acerola (Malpighia emarginata) purée 加工和长期贮藏对针叶甘蓝抗氧化代谢的影响

Brazilian Journal of Plant Physiology Pub Date : 2011-01-01 DOI: 10.1590/S1677-04202011000200007

Luciana de Siqueira Oliveira, M. S. M. Rufino, C. Moura, Fabio R. Cavalcanti, R. Alves, M. R. Miranda

{"title":"The influence of processing and long-term storage on the antioxidant metabolism of acerola (Malpighia emarginata) purée","authors":"Luciana de Siqueira Oliveira, M. S. M. Rufino, C. Moura, Fabio R. Cavalcanti, R. Alves, M. R. Miranda","doi":"10.1590/S1677-04202011000200007","DOIUrl":"https://doi.org/10.1590/S1677-04202011000200007","url":null,"abstract":"Este trabalho avaliou o efeito do processamento e do tempo de armazenamento sobre o potencial antioxidante e atividade de enzimas antioxidantes de polpa congelada de frutos de seis clones de aceroleira. Foram colhidas acerolas maduras dos clones BRS 235, BRS 236, BRS 237, BRS 238, II47/1 e BRS 152; a polpa foi processada, acondicionada em sacos plasticos de polietileno selados a vacuo e armazenada em freezer domestico a -18 °C por 11 meses. Amostras de cada clone foram analisadas no dia colheita/processamento e a cada 30 dias quanto aos compostos bioativos antioxidantes, a atividade de enzimas antioxidantes e a atividade antioxidante total. As polpas de acerola apresentaram uma diminuicao dos antioxidantes nao enzimaticos e um aumento da atividade das enzimas antioxidantes, indicativo de um mecanismo compensatorio entre antioxidantes enzimatico e nao enzimatico. Na polpa de acerola, antocianinas e polifenois estao fortemente correlacionados com o conteudo de solidos soluveis e de vitamina C, destacando os polifenois como o principal contribuinte para a atividade antioxidante total. A polpa do clone II47/1 teve um excelente desempenho em relacao ao potencial antioxidante e o melhor periodo de armazenamento a -18 °C seria de 150 dias, para todos os clones estudados.","PeriodicalId":9278,"journal":{"name":"Brazilian Journal of Plant Physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81691426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

Establishment of sensitive and resistant variety of tomato on the basis of photosynthesis and antioxidative enzymes in the presence of cobalt applied as shotgun approach 采用散弹法在钴存在下，以光合作用和抗氧化酶为基础，建立番茄的敏感和抗性品种

Brazilian Journal of Plant Physiology Pub Date : 2011-01-01 DOI: 10.1590/S1677-04202011000300001

S. A. Hasan, S. Hayat, Arif Shafi Wani, A. Ahmad

{"title":"Establishment of sensitive and resistant variety of tomato on the basis of photosynthesis and antioxidative enzymes in the presence of cobalt applied as shotgun approach","authors":"S. A. Hasan, S. Hayat, Arif Shafi Wani, A. Ahmad","doi":"10.1590/S1677-04202011000300001","DOIUrl":"https://doi.org/10.1590/S1677-04202011000300001","url":null,"abstract":"Cobalt (Co) affords both beneficial as well as toxic effects to plants. The present study was performed with an aim to find out the varietal differences among five tomato cultivars against the Co induced changes in growth, photosynthesis, nitrate reductase (E.C.1.6.6.1), carbonic anhydrase (E.C.4.2.1.1), antioxidative enzymes i.e. peroxidase (E.C.1.11.1.7), catalase (E.C.1.11.1.6), superoxide dismutase (E.C.1.15.1.1) and that of proline content. Seeds of tomato (varieties, K-25, NTS-9, NBR-Uday, Sarvodya, and Malti) were soaked in 0, 100, 200 or 300 µM CoCl2 for 0, 4, 8, 12 h (shotgun approach) and sampled at 30 days after sowing. All the varieties showed significantly different response to different treatment combinations. Despite substantial varietal difference, increased Co concentration caused concomitant decrease in growth, photosynthesis and the activity of nitrate reductase and carbonic anhydrase. However, the activity of antioxidant enzymes and that of proline content increased with the increased concentration of Co as well as duration of soaking in all the varieties. Out of the varieties, K-25 possessed maximum antioxidative enzyme and proline content that represent its most resistant nature against the toxic effect of Co. The order of susceptibility/sensitivity was K-25 > NTS-9 > NBR-Uday > Sarvodya > Malti.","PeriodicalId":9278,"journal":{"name":"Brazilian Journal of Plant Physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90892392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

An outlook on ion signaling and ionome of mycorrhizal symbiosis 菌根共生的离子信号和离子素研究进展

Brazilian Journal of Plant Physiology Pub Date : 2011-01-01 DOI: 10.1590/S1677-04202011000100010

A. C. Ramos, A. Façanha, Livia M. Palma, L. Okorokov, Z. M. Cruz, Ary Gomes Silva, A. F. Siqueira, A. Bertolazi, G. C. Canton, J. Melo, Wolmen Oliveira dos Santos, Vanusa Maria Bonatto Schimitberger, A. L. Okorokova-Façanha

引用次数: 20