J Integr Plant Biol

Small RNAs in regulating temperature stress response in plants

Qing Liu, Shijuan Yan, Tifeng Yang, Shaohong Zhang, Yue-Qin Chen, and Bin Liu

2017, 59(11): 774-791. doi:10.1111/jipb.12571

摘要 ( 1112 )

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Here, we review the new findings regarding the roles of small RNAs and their regulatory mechanisms in plant temperature stress response. We also explore the outlook for utilization of these small RNAs in molecular breeding for improvement of temperature stress tolerance in plants.

Seed dispersal by hornets: An unusual insect-plant mutualism

Gao Chen, Zheng-Wei Wang, Yan Qin, and Wei-Bang Sun

2017, 59(11): 792-796. doi:10.1111/jipb.12568

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Seed dispersal by hornets is a rare seed dispersal mechanism in angiosperms. Chen et al. demonstrate that hornets are the primary seed dispersers of Stemona tuberosa and play an important role in long-distance seed dispersal. This unique example of insect-seed mutualism may be underestimated in other myrmecochorous plants.

THESEUS1 positively modulates plant defense responses against Botrytis cinerea through GUANINE EXCHANGE FACTOR4 signaling

Shaofeng Qu, Xi Zhang, Yutong Song, Jinxing Lin and Xiaoyi Shan

2017, 59(11): 797-804. doi:10.1111/jipb.12565

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THESEUS1, a member of the Catharanthus roseus RLK1-like kinase family, interacts with GUANINE EXCHANGE FACTOR4 (GEF4) and elicits the GEF4 signaling network to regulate defense responses to the necrotrophic fungal pathogen Botrytis cinerea, revealing an important player in defense responses against biotic stresses.

Fitness consequences of a clock pollinator filter in Nicotiana attenuata flowers in nature

Felipe Yon, Danny Kessler, Youngsung Joo, Sang-Gyu Kim, and Ian T. Baldwin

2017, 59(11): 805-809. doi:10.1111/jipb.12579

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Circadian rhythms in flowers of a wild tobacco, Nicotiana attenuata, have evolved to interact with day-active pollinators, hummingbirds and night-active pollinators, hawkmoths. Field experiments with floral rhythm-altered plants revealed that floral rhythms play an important role in pollinator selection in nature.

Arabidopsis CPR5 regulates ethylene signaling via molecular association with the ETR1 receptor

Feifei Wang, Lijuan Wang, Longfei Qiao, Jiacai Chen, Maria Belen Pappa, Haixia Pei, Tao Zhang, Caren Chang, and Chun-Hai Dong

2017, 59(11): 810-824. doi:10.1111/jipb.12570

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In this study, the authors demonstrate that the Arabidopsis CPR5, an endomembrane-localized protein functioning in pathogenesis, leaf senescence and stress responses, can directly interact with the ETR1, the ethylene receptor, and plays a critical role in the regulation of ethylene signaling.

Variation in floral characters, particularly floral scent, in sapromyophilous Stemona species

Gao Chen, Wei-Chang Gong, Jia Ge, Johann Schinnerl, Bin Wang, and Wei-Bang Sun

2017, 59(11): 825-839. doi:10.1111/jipb.12580

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Floral phenotype and fetid floral scent composition (dimethyl disulfide, dimethyl trisulfide, 1-pyrroline, butyric acid, p-cresol, and indole, etc.) of several Stemona species were investigated. Striking differentiation in floral scent at both the species and population level was detected in this study. Floral characteristics related to sapromyophily and deceptive pollination of Stemona were also identified.

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