journal
MENU ▼
Read by QxMD icon Read
search

Journal of Integrative Plant Biology

journal
https://www.readbyqxmd.com/read/28895654/graft-accelerated-virus-induced-gene-silencing-facilitates-functional-genomics-in-rose-flowers
#1
Huijun Yan, Shaochuan Shi, Nan Ma, Xiaoqian Cao, Hao Zhang, Xianqin Qiu, Qigang Wang, Hongying Jian, Ningning Zhou, Zhao Zhang, Kaixue Tang
Rose has emerged as a model ornamental plant for studies of flower development, senescence, and morphology, as well as the metabolism of floral fragrances and colors. Virus-induced gene silencing (VIGS) has long since been used in functional genomics studies of rose by vacuum infiltration of cuttings or seedlings with an Agrobacterium suspension carrying TRV-derived vectors. However, VIGS in rose flowers remains a challenge because of its low efficiency and long time to silencing. Here we present a novel and rapid VIGS method that can be used to analyze gene function in rose, called 'graft-accelerated VIGS', where axillary sprouts are cut off the rose plant and vacuum infiltrated with Agrobacterium...
September 12, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28880427/stigmatic-exudate-in-the-annonaceae-pollinator-reward-pollen-germination-medium-or-extragynoecial-compitum
#2
Jenny Y Y Lau, Chun-Chiu Pang, Lawrence Ramsden, Richard M K Saunders
Although 'dry-type' stigmas are widely regarded as ancestral in angiosperms, the early-divergent family Annonaceae has copious stigmatic exudate. We evaluate three putative functions for this exudate: as a nutritive reward for pollinators; as a pollen germination medium; and as an extragynoecial compitum that enables pollen tube growth between carpels. Stigmatic exudate is fructose dominated (72.2%), but with high levels of glucose and sucrose; the dominance of hexose sugars and the diversity of amino acids observed, including many that are essential for insects, supports a nutritive role for pollinators...
September 6, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28875589/genetic-dissection-of-top-three-leaf-traits-in-rice-using-progenies-from-one-japonica%C3%A3-indica-cross
#3
Changbin Yin, Huihui Li, Zhigang Zhao, Zhiquan Wang, Shijia Liu, Liangming Chen, Xi Liu, Yunlu Tian, Juan Ma, Lidong Xu, Dashuang Zhang, Susong Zhu, Danting Li, Jianmin Wan, Jiankang Wang
The size of the top three leaves of rice plants is strongly associated with yield; thus, it is important to consider quantitative traits representing leaf size (e.g., length and width) when breeding novel rice varieties. It is challenging to measure such traits on a large scale in the field, and little is known about the genetic factors that determine the size of the top three leaves. In this study, a population of recombinant inbred lines (RILs) and reciprocal single chromosomal segment substitution lines (SSSLs) derived from the progeny of a japonica Asominori × indica IR24 cross were grown under four diverse environmental conditions...
September 6, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28875539/ago18b-negatively-regulates-determinacy-of-spikelet-meristems-on-the-tassel-central-spike-in-maize
#4
Wei Sun, Xiaoli Xiang, Lihong Zhai, Dan Zhang, Zheng Cao, Lei Liu, Zuxin Zhang
The maize tassel represents an indeterminate male inflorescence. The number of primordia that a given inflorescence meristem produces is related to its determinacy, i.e., capacity for continued meristem activity. Transcription factors (TFs) controlling determinacy in tassel axillary meristems are well studied in maize, and small RNAs are known to influence tassel development by repressing targets including tassel-related TFs. As core components of the RNA-inducible silence complex (RISC), Argonaute (AGO) proteins are required for small RNA-mediated repression...
September 6, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28843024/namyb8-regulates-distinct-optimally-distributed-herbivore-defense-traits
#5
LETTER
Martin Schäfer, Christoph Brütting, Shuqing Xu, Zhihao Ling, Anke Steppuhn, Ian T Baldwin, Meredith C Schuman
When herbivores attack, plants specifically reconfigure their metabolism. Herbivory on the wild tobacco Nicotiana attenuata strongly induces the R2/R3 MYB transcriptional activator MYB8, which was reported to specifically regulate the accumulation of phenolamides (PAs). We discovered that transcriptional regulation of trypsin protease inhibitors (TPIs) and a threonine deaminase (TD) also depend on MYB8 expression. Induced distributions of PAs, TD and TPIs all meet predictions of optimal defense theory: their leaf concentrations increase with the fitness value and the probability of attack of the tissue...
August 26, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28836349/variation-in-floral-characters-particularly-floral-scent-in-sapromyophilous-stemona-species
#6
Gao Chen, Wei-Chang Gong, Jia Ge, Johann Schinnerl, Bin Wang, Wei-Bang Sun
Flowers or inflorescences often deploy various signals, including visual, olfactory, and gustatory cues, that can be detected by their pollinators. In many plants, these cues and their functions are poorly understood. Deciphering the interactions between floral cues and pollinators is crucial for analyzing the reproductive success of flowering plants. In this study, we examined the composition of the fetid floral scents produced by several Stemona species, including nine S. tuberosa populations from across China, using dynamic headspace adsorption, gas chromatography, and mass spectrometry techniques...
August 24, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28834357/fitness-consequences-of-a-clock-pollinator-filter-in-nicotiana-attenuata-flowers-in-nature
#7
LETTER
Felipe Yon, Danny Kessler, Youngsung Joo, Sang-Gyu Kim, Ian T Baldwin
Nicotiana attenuata flowers, diurnally open, emit scents and move vertically to interact with nocturnal hawkmoth and day-active hummingbird pollinators. To examine the fitness consequences of these floral rhythms, we conducted pollination trials in the plant's native habitat with phase-shifted flowers of plants silenced in circadian clock genes. The results revealed that some pollination benefits observed under glasshouse conditions were not reproduced under natural field conditions. Floral arrhythmicity increased pollination success by hummingbirds, while reducing those by hawkmoths in the field...
August 19, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28815958/arabidopsis-exo70a1-recruits-patellin3-to-the-cell-membrane-independent-of-its-role-as-exocyst-subunit
#8
Chengyun Wu, Lu Tan, Max van Hooren, Xiaoyun Tan, Feng Liu, Yan Li, Yanxue Zhao, Bingxuan Li, Qingchen Rui, Teun Munnik, Yiqun Bao
The exocyst is a well-known complex to tether vesicles at the cell membrane before fusion. Whether an individual subunit can execute a unique function is largely unknown. Using yeast-two-hybrid (Y2H) analysis, we found that EXO70A1 interacted with the GOLD domain of Patellin3 (PATL3). The direct EXO70A1-PATL3 interaction was supported by in vitro and in vivo experiments. In Arabidopsis, PATL3-GFP colocalized with EXO70A1 predominantly at the cell membrane, and PATL3 localization was insensitive to BFA and TryA23...
August 16, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28815896/the-signals-to-trigger-the-initiation-of-ovule-enlargement-are-from-the-pollen-tubes-the-direct-evidence
#9
LETTER
Sheng Zhong, Jun Zhang, Li-Jia Qu
In angiosperms, initiation of ovule enlargement represents the start of the seed development, the molecular mechanism of which is not yet elucidated. It is previously reported that pollen tube contents, rather than the double fertilization, can trigger ovule enlargement. However, it remains unclear that whether the signal(s) to trigger the initiation of ovule enlargement are from the sperm cells or from the pollen tubes. Recently, we identified a mutant drop1-drop2-, which produces pollen tubes with no sperm cells...
August 16, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28805951/plant-reproduction-recent-discoveries-from-china
#10
EDITORIAL
Li-Jia Qu, Meng-Xiang Sun
Sexual reproduction in higher plants consists of several major biological processes which include mega- and micro-gametogenesis, male-female communications, embryogenesis and endosperm development. Male-female communications include male gametophyte-sporophytic tissues (stigma/transmitting tract) interaction and male-female gametophyte communication, during which various signaling pathways are involved.
August 14, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28783252/the-polyketide-synthase-ospks2-is-essential-for-pollen-exine-and-ubisch-body-patterning-in-rice
#11
Xiaolei Zhu, Jing Yu, Jianxin Shi, Takayuki Tohge, Alisdair R Fernie, Sagit Meir, Asaph Aharoni, Dawei Xu, Dabing Zhang, Wanqi Liang
Lipid and phenolic metabolism are important for pollen exine formation. In Arabidopsis, polyketide synthases (PKSs) are essential for both sporopollenin biosynthesis and exine formation. Here, we characterized the role of a polyketide synthase (OsPKS2) in male reproduction of rice (Oryza sativa). Recombinant OsPKS2 catalyzed the condensation of fatty acyl-CoA with malonyl-CoA to generate triketide and tetraketide α-pyrones, the main components of pollen exine. Indeed, the ospks2 mutant had defective exine patterning and was male sterile...
August 7, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28782920/potassium-channel-akt1-is-involved-in-the-auxin-mediated-root-growth-inhibition-in-arabidopsis-response-to-low-k-stress
#12
Juan Li, Wei-Hua Wu, Yi Wang
The changes in external K(+) concentrations affect plant root growth. However, the molecular mechanism for a plant perceiving K(+) signal and modulating its root growth remains unknown. It is hypothesized that the K(+) channel AKT1 may be involved in low K(+) sensing in Arabidopsis root and subsequently regulate root growth. Along with the decline of external K(+) concentrations, the primary root growth of wild-type plants was gradually inhibited. However, the primary root of akt1 mutant can still grow under low K(+) (LK) conditions...
August 7, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28782297/a-reciprocal-inhibition-between-arid1-and-met1-in-male-and-female-gametes-in-arabidopsis
#13
Lei Li, Wenye Wu, Youshang Zhao, Binglian Zheng
Both female and male gametophytes harbor companion cells and gametes. MET1, a DNA methyltransferase, is down-regulated in companion cells. However, how MET1 is differentially regulated in gametophytes remains unexplored. ARID1, a transcription factor that is specifically depleted in sperm cells, is occupied by MET1-dependent CG methylation. Here, we show that MET1 confines ARID1 to the vegetative cell of male gametes, but ARID1 conversely represses MET1 in the central cell of female gametes. Compared to the vegetative cell-localization in wild type pollen, ARID1 expands to sperm cells in the met1 mutant...
August 7, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28731217/small-rnas-in-regulating-temperature-stress-response-in-plants
#14
REVIEW
Qing Liu, Shijuan Yan, Tifeng Yang, Shaohong Zhang, Yue-Qin Chen, Bin Liu
Due to global climate change, temperature stress has become one of the primary causes of crop losses worldwide. Much progress has been made in unraveling the complex stress response mechanisms in plants, particularly in the identification of temperature stress responsive protein-coding genes. Recently discovered microRNAs (miRNAs) and endogenous small-interfering RNAs (siRNAs) have also been demonstrated as important players in plant temperature stress response. Using high-throughput sequencing, many small RNAs, especially miRNAs, have been identified to be triggered by cold or heat...
July 21, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28708312/arabidopsis-cpr5-regulates-ethylene-signaling-via-molecular-association-with-the-etr1-receptor
#15
Feifei Wang, Lijuan Wang, Longfei Qiao, Jiacai Chen, Maria Belen Pappa, Haixia Pei, Tao Zhang, Caren Chang, Chun-Hai Dong
The plant hormone ethylene plays various functions in plant growth, development and response to environmental stress. Ethylene is perceived by membrane-bound ethylene receptors, and among the homologous receptors in Arabidopsis, the ETR1 ethylene receptor plays a major role. The present study provides evidence demonstrating that Arabidopsis CPR5 functions as a novel ETR1 receptor-interacting protein in regulating ethylene response and signaling. Yeast split ubiquitin assays and bi-fluorescence complementation studies in plant cells indicated that CPR5 directly interacts with the ETR1 receptor...
July 14, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28695640/seed-dispersal-by-hornets-an-unusual-insect-plant-mutualism
#16
LETTER
Gao Chen, Zheng-Wei Wang, Yan Qin, Wei-Bang Sun
Vespicochory, seed dispersal by hornets, is a rare seed dispersal mechanism in angiosperms, and to date there are few records of this phenomenon. Through field investigations and behavioural assays conducted in four populations of Stemona tuberosa from 2011-2016, we demonstrate that hornets are the primary seed dispersers of S. tuberosa and play an important role in "long-distance" seed dispersal in this species. Furthermore, some ant species act as secondary dispersers and may transport the seeds to safe sites...
July 11, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28681564/arr12-promotes-de-novo-shoot-regeneration-in-arabidopsis-thaliana-via-activation-of-wuschel-expression
#17
Xuehuan Dai, Zhenhua Liu, Meng Qiao, Juan Li, Shuo Li, Fengning Xiang
Auxin and cytokinin direct cell proliferation and differentiation during the in vitro culture of plant cells, but the molecular basis of these processes, especially de novo shoot regeneration, has not been fully elucidated. Here, we describe the regulatory control of shoot regeneration in Arabidopsis thaliana (L.) Heynh, based on the interaction of ARABIDOPSIS RESPONSE REGULATOR12 (ARR12) and WUSCHEL (WUS). The major site of ARR12 expression coincided with the location where the shoot apical meristem (SAM) initiated...
July 5, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28650091/localized-micronutrient-patches-induce-lateral-root-foraging-and-chemotropism-in-nicotiana-attenuata
#18
Abigail P Ferrieri, Ricardo A R Machado, Carla C M Arce, Danny Kessler, Ian T Baldwin, Matthias Erb
Nutrients are distributed unevenly in the soil. Phenotypic plasticity in root growth and proliferation may enable plants to cope with this variation and effectively forage for essential nutrients. However, how micronutrients shape root architecture of plants in their natural environments is poorly understood. We employed a combination of field and laboratory-based assays to determine the capacity of Nicotiana attenuata to direct root growth towards localized nutrient patches in its native environment. Plants growing in nature displayed a particular root phenotype consisting of a single primary root and a few long, shallow lateral roots...
June 26, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28646554/theseus1-positively-modulates-plant-defense-responses-against-botrytis-cinerea-through-guanine-exchange-factor4-signaling
#19
LETTER
Shaofeng Qu, Xi Zhang, Yutong Song, Jinxing Lin, Xiaoyi Shan
The plant cell wall is an important interface for sensing pathogen attack and activating signaling pathways that promote plant immune responses. THESEUS1 (THE1) acts as a sensor of cell wall integrity that controls cell elongation during plant growth. However, no specific role for THE1 in plant defense responses has been reported. Here, we found that THE1 interacts with GUANINE EXCHANGE FACTOR4 (GEF4) and that both proteins play regulatory roles in plant resistance to the necrotrophic fungus Botrytis cinerea...
June 24, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28843032/regulatory-network-and-genetic-interactions-established-by-osmads34-in-rice-inflorescence-and-spikelet-morphogenesis
#20
Qingcai Meng, Xiaofeng Li, Wanwan Zhu, Li Yang, Wanqi Liang, Ludovico Dreni, Dabing Zhang
Grasses display highly diversified inflorescence architectures that differ in the arrangement of spikelets and flowers and determine cereal yields. However, the molecular basis underlying grass inflorescence morphogenesis remains largely unknown. Here we investigate the role of a functionally diversified SEPALLATA MADS-box transcription factor, OsMADS34, in regulating rice (Oryza sativa L.) inflorescence and spikelet development. Microarray analysis showed that, at the very early stages of inflorescence formation, dysfunction of OsMADS34 caused altered expression of 379 genes that are associated with protein modification and degradation, transcriptional regulation, signaling and metabolism activity...
September 2017: Journal of Integrative Plant Biology
journal
journal
41093
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"