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2016年 第58卷 第7期 刊出日期：2016-07-07

2016年 第58卷 第7期
刊出日期：2016-07-07

  

Shade-induced stem elongation in rice seedlings: Implication of tissue-specific phytohormone regulation

Huihui Liu, Chuanwei Yang and Lin Li

2016, 58(7):  614-617.  doi:10.1111/jipb.12468

摘要 ( 2144 )  

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The authors grow rice seedlings in simulated shade which mimic the seedlings grown in high density, and characterize the phenotype and global transcriptome changes. This work suggests that hormone inhibitors, such as PAC, can help form compact and sturdy seedlings without compromising growth in paddy fields.

Depletion of tyrosyl-DNA phosphodiesterase 1α (MtTdp1α) affects transposon expression in Medicago truncatula

Maria Elisa Sabatini, Mattia Donà, Paola Leonetti, Andrea Minio, Massimo Delledonne, Daniela Carbonera, Massimo Confalonieri, Giorgio Giraffa, and Alma Balestrazzi

2016, 58(7):  618-622.  doi:10.1111/jipb.12457

摘要 ( 1673 )  

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Cellulose synthesis genes CESA6 and CSI1 are important for salt stress tolerance in Arabidopsis

Shuang-Shuang Zhang, Le Sun, Xinran Dong, Sun-Jie Lu, Weidong Tian, and Jian-Xiang Liu

2016, 58(7):  623-626.  doi:10.1111/jipb.12442

摘要 ( 2555 )  

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Two salt hypersensitive mutants she1 and she2 were identified through genetic screening. SHE1 encodes a cellulose synthase CESA6 while SHE2 encodes a cellulose synthase-interactive protein CSI1. Both of them are involved in cellulose deposition. Our results demonstrated that the sustained cellulose synthesis is important for salt stress tolerance in Arabidopsis.

Putative zeatin O-glucosyltransferase OscZOG1 regulates root and shoot development and formation of agronomic traits in rice

Xiao-Ling Shang, Rong-Rong Xie, Hua Tian, Qing-Long Wang and Fang-Qing Guo

2016, 58(7):  627-641.  doi:10.1111/jipb.12444

摘要 ( 2530 )  

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This study demonstrated the feasibility of improving the critical yield-determinant agronomic traits by down-regulating the expression level of OscZOG1. The results revealed a novel mechanism in which modulating the levels of cytokinin glucosylation can function as a fine-tuning switch in regulating the formation of agronomic traits in rice.

DELLA proteins interact with FLC to repress flowering transition

Mingzhe Li, Fengying An, Wenyang Li, Mengdi Ma, Ying Feng, Xing Zhang and Hongwei Guo

2016, 58(7):  642-655.  doi:10.1111/jipb.12451

摘要 ( 2882 )  

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The authors reveal a mechanism underlying GA pathway and vernalization pathway in regulating flowering time: GRAS domain regulator DELLAs directly interact with MADS box transcription factor FLC and enhance the repression ability of FLC on its target genes which is required for floral transition.

Shifting Nicotiana attenuata's diurnal rhythm does not alter its resistance to the specialist herbivore Manduca sexta

Jasmin Herden, Stefan Meldau, Sang-Gyu Kim, Grit Kunert, Youngsung Joo, Ian T. Baldwin, and Meredith C. Schuman

2016, 58(7):  656-668.  doi:10.1111/jipb.12458

摘要 ( 1474 )  

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Living things have internal circadian clocks to coordinate with external diurnal cycles. Circadian fluctuations in plant defense can provide resistance to herbivory when plants and herbivores share a diurnal cycle. However for a plant which responds strongly and specifically to a co-evolved herbivore, plant resistance was independent of diurnal cycle.

The Arabidopsis CROWDED NUCLEI genes regulate seed germination by modulating degradation of ABI5 protein

Wenming Zhao, Chunmei Guan, Jian Feng, Yan Liang, Ni Zhan, Jianru Zuo, and Bo Ren

2016, 58(7):  669-678.  doi:10.1111/jipb.12448

摘要 ( 3498 )  

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The authors found that the Arabidopsis CRWNs predicted nuclear matrix proteins, might participate in ABI5 protein degradation in nuclear bodies, and then regulate ABA-controlled seed germination. Moreover, the extreme C-terminal of CRWN3 protein is necessary for its function in the response to ABA in germination.

AtTMEM18 plays important roles in pollen tube and vegetative growth in Arabidopsis

Xiao-Ying Dou, Ke-Zhen Yang, Zhao-Xia Ma, Li-Qun Chen, Xue-Qin Zhang, Jin-Rong Bai, and De Ye

2016, 58(7):  679-692.  doi:10.1111/jipb.12459

摘要 ( 2124 )  

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The Transmembrane 18 proteins (TMEM18s) are conserved in most eukaryotes and may be related to obesity in humans. This study shows that Arabidopsis TMEM18 (AtTMEM18) plays important roles in plant growth. Mutation in AtTMEM18 affected callose deposition and caused defects in pollen tube and other plant tissues.