共查询到20条相似文献,搜索用时 0 毫秒
1.
2.
3.
4.
5.
Hydrogen sulfide (H2S) is an important gaseous molecule in various plant developmental processes and plant stress responses. In this study, the transgenic Arabidopsis thaliana plants with modulated exp... 相似文献
6.
7.
8.
9.
10.
11.
12.
13.
Jiang SY Ramamoorthy R Bhalla R Luan HF Venkatesh PN Cai M Ramachandran S 《Plant molecular biology》2008,67(6):603-614
Ribosome-inactivating proteins (RIPs) are N-glycosidases that inhibit protein synthesis by depurinating rRNA. Despite their identification more than 25 years ago, little is known about their biological functions. Here, we report a genome-wide identification of the RIP family in rice based on the complete genome sequence analysis. Our data show that rice genome encodes at least 31 members of this family and they all belong to type 1 RIP genes. This family might have evolved in parallel to species evolution and genome-wide duplications represent the major mechanism for this family expansion. Subsequently, we analyzed their expression under biotic (bacteria and fungus infection), abiotic (cold, drought and salinity) and the phytohormone ABA treatment. These data showed that some members of this family were expressed in various tissues with differentiated expression abundances whereas several members showed no expression under normal growth conditions or various environmental stresses. On the other hand, the expression of many RIP members was regulated by various abiotic and biotic stresses. All these data suggested that specific members of the RIP family in rice might play important roles in biotic and abiotic stress-related biological processes and function as a regulator of various environmental cues and hormone signaling. They may be potentially useful in improving plant tolerance to various abiotic and biotic stresses by over-expressing or suppressing these genes. 相似文献
14.
Decomposition in salt marsh ecosystems of the S.W. Netherlands: the effects of biotic and abiotic factors 总被引:2,自引:0,他引:2
Decomposition rates, determined with the litterbag technique in salt marshes of the S.W. Netherlands during the past decade are compared; the biotic and abiotic factors influencing these rates are identified and discussed.Tissue composition is the main variable affecting decay rates of halophytes, particularly variations in lignin content between plant parts and between species.Experiments in which the loss of the tensile strength of cotton strips was used as an index of cellulolytic decay, show that there is a conspicuous variation in decay rates on different sites in a salt marsh. Nonetheless, the locally varying environmental conditions within salt marshes of the S.W. Netherlands have less impact on the variation in decomposition rates of halophyte litter than the chemical make-up of the plant material.Larger fauna elements (> 300 m) may increase decomposition rates, but this effect is only limited and depends on location and litter type. The role of small fauna elements such as nematodes, which occur abundantly in association with halophyte litter, remains largely unknown. 相似文献
15.
Double overexpression of DREB and PIF transcription factors improves drought stress tolerance and cell elongation in transgenic plants 下载免费PDF全文
Madoka Kudo Satoshi Kidokoro Takuya Yoshida Junya Mizoi Daisuke Todaka Alisdair R. Fernie Kazuo Shinozaki Kazuko Yamaguchi‐Shinozaki 《Plant biotechnology journal》2017,15(4):458-471
16.
17.
Rajesh Kumar Pathak Gohar Taj Dinesh Pandey Sandeep Arora Anil Kumar 《Bioinformation》2013,9(9):443-449
Mitogen-Activated Protein Kinases (MAPKs) cascade plays an important role in regulating plant growth and development,
generating cellular responses to the extracellular stimuli. MAPKs cascade mainly consist of three sub-families i.e. mitogen-activated
protein kinase kinase kinase (MAPKKK), mitogen-activated protein kinase kinase (MAPKK) and mitogen activated protein kinase
(MAPK), several cascades of which are activated by various abiotic and biotic stresses. In this work we have modeled the holistic
molecular mechanisms essential to MAPKs activation in response to several abiotic and biotic stresses through a system biology
approach and performed its simulation studies. As extent of abiotic and biotic stresses goes on increasing, the process of cell
division, cell growth and cell differentiation slow down in time dependent manner. The models developed depict the
combinatorial and multicomponent signaling triggered in response to several abiotic and biotic factors. These models can be used
to predict behavior of cells in event of various stresses depending on their time and exposure through activation of complex
signaling cascades. 相似文献
18.
19.
20.
Plants are continually challenged to recognize and respond to adverse changes in their environment to avoid detrimental effects on growth and development. Understanding the mechanisms that crop plants employ to resist and tolerate abiotic stress is of considerable interest for designing agriculture breeding strategies to ensure sustainable productivity. The application of proteomics technologies to advance our knowledge in crop plant abiotic stress tolerance has increased dramatically in the past few years as evidenced by the large amount of publications in this area. This is attributed to advances in various technology platforms associated with MS‐based techniques as well as the accessibility of proteomics units to a wider plant research community. This review summarizes the work which has been reported for major crop plants and evaluates the findings in context of the approaches that are widely employed with the aim to encourage broadening the strategies used to increase coverage of the proteome 相似文献