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1. Responses of Plant Bud Bank Characteristics to the Enclosure in Different Desertified Grasslands on the Tibetan Plateau

Author:
Ding, Xinjing; Su, Peixi; Zhou, Zijuan; Shi, Rui; Yang, Jianping
Source:
Plants 2021 v.10 no.1
ISSN:
2223-7747
Subject:
alpine plants; asexual reproduction; buds; density; grasses; grasslands; light; meristems; plant communities; plant reproduction; rhizomes; soil; volume; China
Abstract:
... Asexual reproduction is the main mode of alpine plant reproduction, and buds play an important role in plant community succession. The purpose of this study is to explore whether the desertified grassland can recover itself through the existing bud bank. The bud bank composition, distribution and size of different desertified grasslands were studied using unit volume excavation on the Tibetan Plat ...
DOI:
10.3390/plants10010141

2. Advances in Research and Application of Male Sterility in Brassica oleracea

Author:
Ji, Jialei; Huang, Jianxin; Yang, Limei; Fang, Zhiyuan; Zhang, Yangyong; Zhuang, Mu; Lv, Honghao; Wang, Yong; Liu, Yumei; Li, Zhansheng; Han, Fengqing
Source:
Horticulturae 2020 v.6 no.4
ISSN:
2311-7524
Subject:
Brassica oleracea; breeding; disease resistance; genes; heterosis; hybrids; male sterility; mutants; paper; plant reproduction; research; stress tolerance; varieties; vegetables
Abstract:
... Brassica oleracea is an important vegetable species which belongs to the genus Brassica and the mustard family Brassicaceae Burnett. Strong heterosis in B. oleracea is displayed in yield, quality, disease resistance, and stress tolerance. Heterosis breeding is the main way to improve B. oleracea varieties. Male sterile mutants play an important role in the utilization of heterosis and the study of ...
DOI:
10.3390/horticulturae6040101

3. Dynamics of Pollen Activation and the Role of H+-ATPase in Pollen Germination in Blue Spruce (Picea pungens)

Author:
Breygina, Maria; Klimenko, Ekaterina; Podolyan, Alexandra; Voronkov, Alexander
Source:
Plants 2020 v.9 no.12
ISSN:
2223-7747
Subject:
Angiospermae; H-transporting ATP synthase; Picea pungens; adenosinetriphosphatase; dynamics; fusicoccin; information; membrane potential; metabolism; oxygen; pH; physiological state; plant reproduction; pollen; pollen tubes; proton pump; shape
Abstract:
... Pollen is a highly specialized structure for sexual plant reproduction. Early stages of pollen germination require the transition from dormant state to active metabolism. In particular, an important role during this early phase of angiosperm pollen germination is played by H⁺-ATPase. Very little is known about pollen activation in gymnosperm species, and information on the involvement of H⁺-ATPase ...
DOI:
10.3390/plants9121760

4. Chilling stress tolerance of two soya bean cultivars: Phenotypic and molecular responses

Author:
Kuczyński, Jakub; Twardowski, Tomasz; Nawracała, Jerzy; Gracz‐Bernaciak, Joanna; Tyczewska, Agata
Source:
Journal of agronomy and crop science 2020 v.206 no.6 pp. 759-772
ISSN:
0931-2250
Subject:
Glycine max; cold stress; cold tolerance; cultivars; gene expression; gene expression regulation; gene regulatory networks; microRNA; phenotype; plant reproduction; roots; seed productivity; soybeans; stress tolerance
Abstract:
... Chilling stress is a major factor limiting the yield of soya bean [Glycine max (L.) Merr.] on a global scale. However, the regulatory network that controls the chilling response of soya bean remains unclear. In the present study, phenotyping and quantitative analyses of miRNAs in soya bean under chilling stress were carried out to determine the impact of environmental constraints on soya bean prod ...
DOI:
10.1111/jac.12431

5. The Prospect of Physiological Events Associated with the Micropropagation of Eucalyptus sp.

Author:
Abiri, Rambod; Atabaki, Narges; Abdul-Hamid, Hazandy; Sanusi, Ruzana; Ab Shukor, Nor Aini; Shaharuddin, Noor Azmi; Ahmad, Siti Aqlima; Malik, Sonia
Source:
Forests 2020 v.11 no.11
ISSN:
1999-4907
Subject:
Eucalyptus; acclimation; adjuvants; age; biotechnology; culture media; environment; explants; forest trees; forests; genetic engineering; genotype; information; mass; micropropagation; nutrients; occurrence; organogenesis; paper; plant growth substances; plant improvement; plant reproduction; protocols; researchers; somatic embryogenesis; tissue culture; woody plants
Abstract:
... Micropropagation is a reliable technique in biotechnology and genetic engineering domain, which has been widely applied for rapid mass propagation of plants in vitro condition. Through micropropagation techniques, reproduction of plants can be attained from different explants using organogenesis and somatic embryogenesis. Over the decades, micropropagation techniques have offered tremendous potent ...
DOI:
10.3390/f11111211

6. ROS and NO Regulation by Melatonin Under Abiotic Stress in Plants

Author:
Pardo-Hernández, Miriam; López-Delacalle, Maria; Rivero, Rosa M.
Source:
Antioxidants 2020 v.9 no.11
ISSN:
2076-3921
Subject:
S-nitrosylation; abiotic stress; agriculture; antioxidant activity; flooded conditions; knowledge; light; melatonin; nitric oxide; nutrient deficiencies; plant growth; plant reproduction; protective effect; proteins; reactive oxygen species; salinity; stress tolerance; temperature; tryptophan
Abstract:
... Abiotic stress in plants is an increasingly common problem in agriculture, and thus, studies on plant treatments with specific compounds that may help to mitigate these effects have increased in recent years. Melatonin (MET) application and its role in mitigating the negative effects of abiotic stress in plants have become important in the last few years. MET, a derivative of tryptophan, is an imp ...
DOI:
10.3390/antiox9111078

7. Effects of Low Light on Development of Ageratina altissima and Rudbeckia laciniata (Asteraceae), Species of the Tallgrass Prairie

Author:
de Queiroz, Aline Rodrigues; Maricle, Brian R.
Source:
Transactions of the Kansas Academy of Science 2020 v.123 no.3-4 pp. 387-401
ISSN:
0022-8443
Subject:
Ageratina altissima; Rudbeckia laciniata; forbs; leaf chlorophyll content; leaf thickness; light intensity; petioles; plant reproduction; plant response; root shoot ratio; shade tolerance; stem elongation; tallgrass prairies
Abstract:
... How plants respond to low quantities of light could help in understanding plant development and ecology in habitats with changing light levels. Most previous studies have investigated shading by other plants, where spectral quality of light is changed. In this study, by contrast, several aspects of growth and reproduction were measured in Ageratina altissima and Rudbeckia laciniata (both grassland ...
DOI:
10.1660/062.123.0307

8. High-efficiency somatic embryogenesis techniques for different hybrids of cut lilies

Author:
Yan, Rui; Wang, Chunxia; Wang, Jinxia; Nie, Ruxia; Sun, Hongmei
Source:
Plant cell, tissue, and organ culture 2020 v.143 no.1 pp. 145-157
ISSN:
0167-6857
Subject:
Lilium longiflorum; cotyledons; explants; germination; germplasm; hybrids; in vitro regeneration; leaves; naphthaleneacetic acid; ornamental plants; picloram; plant breeding; plant reproduction; seedlings; solar radiation; somatic embryogenesis; somatic embryos
Abstract:
... Somatic embryogenesis (SE) is a unique method of in vitro regeneration for plant reproduction, germplasm resource preservation, and molecular-assisted breeding. Although lily is an internationally valued ornamental plant, its SE technology is still incomplete. Here, the effects of different explants, picloram (PIC) concentrations, and light conditions on somatic embryo induction, development, germ ...
DOI:
10.1007/s11240-020-01904-4

9. The Influence of Arbuscular Mycorrhizal Fungi on Plant Reproduction

Author:
Bennett, Alison E.; Meek, Heiler C.
Source:
Journal of chemical ecology 2020 v.46 no.8 pp. 707-721
ISSN:
0098-0331
Subject:
chemical ecology; chemistry; color; females; flower size; literature; males; mycorrhizal fungi; nectar; plant reproduction; pollen; pollen tubes; research; roots; seed germination; seeds; vesicular arbuscular mycorrhizae
Abstract:
... Arbuscular mycorrhizal (AM) fungi can influence all components of plant reproduction including pollen delivery, pollen germination, pollen tube growth, fertilization, and seed germination. AM fungi associate with plant roots, uptake nutrients, and prime plants for faster defense responses. Our literature review first identified four testable hypotheses describing how AM fungi could alter pollen de ...
DOI:
10.1007/s10886-020-01192-4

10. Beyond graphene oxide acidity: Novel insights into graphene related materials effects on the sexual reproduction of seed plants

Author:
Candotto Carniel, Fabio; Fortuna, Lorenzo; Nepi, Massimo; Cai, Giampiero; Del Casino, Cecilia; Adami, Giampiero; Bramini, Mattia; Bosi, Susanna; Flahaut, Emmanuel; Martín, Cristina; Vázquez, Ester; Prato, Maurizio; Tretiach, Mauro
Source:
Journal of hazardous materials 2020 v.393 pp. 122380
ISSN:
0304-3894
Subject:
Corylus avellana; acidity; calcium; graphene; graphene oxide; pH; plant reproduction; pollen; pollen tubes; reactive oxygen species; sexual reproduction; socioeconomics; wastes
Abstract:
... Graphene related materials (GRMs) are currently being used in products and devices of everyday life and this strongly increases the possibility of their ultimate release into the environment as waste items. GRMs have several effects on plants, and graphene oxide (GO) in particular, can affect pollen germination and tube growth due to its acidic properties. Despite the socio-economic importance of ...
DOI:
10.1016/j.jhazmat.2020.122380

11. Nectar robbers deter legitimate pollinators by mutilating flowers

Author:
Varma, Sangeetha; Rajesh, T. P.; Manoj, K.; Asha, G.; Jobiraj, T.; Sinu, Palatty Allesh
Source:
Oikos 2020 v.129 no.6 pp. 868-878
ISSN:
0030-1299
Subject:
Halictidae; Leucas aspera; bees; flower morphology; flowers; fruit set; harvesting; nectar; nectar robbing; plant reproduction; pollinators; sexual reproduction
Abstract:
... Nectar robbing – harvesting nectar illegitimately – can have a variety of outcomes for plant sexual reproduction and for the pollinator community. Nectar robbers can damage flowers while robbing nectar, which could affect the behavior of subsequent flower visitors and, consequently, plant reproduction. However, only nectar manipulation by nectar robbers has so far received attention. We found a sh ...
DOI:
10.1111/oik.06988

12. Asynchronous range shifts drive alpine plant–pollinator interactions and reduce plant fitness

Author:
Richman, Sarah K.; Levine, Jonathan M.; Stefan, Laura; Johnson, Christopher A.
Source:
Global change biology 2020 v.26 no.5 pp. 3052-3064
ISSN:
1354-1013
Subject:
Bombus; alpine meadows; altitude; case studies; climate; global warming; plant communities; plant reproduction; pollinators; prediction; temperature
Abstract:
... Climate change is driving species' range shifts, which are in turn disrupting species interactions due to species‐specific differences in their abilities to migrate in response to climate. We evaluated the consequences of asynchronous range shifts in an alpine plant–pollinator community by transplanting replicated alpine meadow turfs downslope along an elevational gradient thereby introducing them ...
DOI:
10.1111/gcb.15041

13. Boosting autophagy in sexual reproduction: a plant perspective

Author:
Li, Shanshan; Yan, He; Mei, Wei‐Ming; Tse, Yu Chung; Wang, Hao
Source:
Thenew phytologist 2020 v.226 no.3 pp. 679-689
ISSN:
0028-646X
Subject:
Angiospermae; abiotic stress; autophagy; biochemical pathways; biotic stress; eukaryotic cells; gametophytes; ova; pathogens; plant reproduction; pollen germination; reproductive system; sexual reproduction; spermatozoa; stress tolerance
Abstract:
... The key process of sexual reproduction is the successful fusion of the sperm and egg cell. Distinct from dynamic and flagellated animal sperm cells, higher flowering plant sperm cells are immotile. Therefore, plants have evolved a novel reproductive system to achieve fertilization and generate progenies. Plant sexual reproduction consists of multiple steps, mainly including gametophyte development ...
DOI:
10.1111/nph.16414

14. Fertilization in flowering plants: an odyssey of sperm cell delivery

Author:
Adhikari, Prakash B.; Liu, Xiaoyan; Wu, Xiaoyan; Zhu, Shaowei; Kasahara, Ryushiro D.
Source:
Plant molecular biology 2020 v.103 no.1-2 pp. 9-32
ISSN:
0167-4412
Subject:
Arabidopsis; endosperm; females; gametophytes; genes; models; ova; ovules; plant reproduction; pollen; pollen tubes; spermatozoa; stigma
Abstract:
... KEY MESSAGE: In light of the available discoveries in the field, this review manuscript discusses on plant reproduction mechanism and molecular players involved in the process. Sperm cells in angiosperms are immotile and are physically distant to the female gametophytes (FG). To secure the production of the next generation, plants have devised a clever approach by which the two sperm cells in each ...
DOI:
10.1007/s11103-020-00987-z

15. Integrative transcriptomics and proteomics analysis constructs a new molecular model for ovule abortion in the female-sterile line of Pinus tabuliformis Carr.

Author:
Zhang, Min; Li, Wenhai; Feng, Jun; Gong, Zaixin; Yao, Yang; Zheng, Caixia
Source:
Plant science 2020 v.294 pp. 110462
ISSN:
0168-9452
Subject:
Angiospermae; DNA repair; DNA replication; Pinus tabuliformis; apoptosis; energy metabolism; genes; mitosis; molecular models; occurrence; ovules; plant reproduction; proteomics; transcriptomics
Abstract:
... Ovule development is critical to plant reproduction and free nuclear mitosis of megagametophyte (FNMM) is vital for ovule development. However, most results of ovule development were based on the studies in angiosperms, and its molecular regulation remained largely unknown in gymnosperms, particularly, during FNMM. In this context, we studied the genome-wide difference between sterile line (SL) an ...
DOI:
10.1016/j.plantsci.2020.110462

16. Maternal effects should be considered in the establishment of forestry plantations

Author:
Vivas, María; Wingfield, Michael J.; Slippers, Bernard
Source:
Forest ecology and management 2020 v.460 pp. 117909
ISSN:
0378-1127
Subject:
DNA; breeding; environmental factors; genotype; maternal effect; mature plants; nucleotide sequences; pest resistance; phenotype; phenotypic plasticity; plant growth; plant reproduction; plantation forestry; progeny; seed orchards; trees
Abstract:
... Breeding strategies for plants focus on the genetic influence on their phenotypes. However, the phenotype is not only the outcome of the genotype or the environmental conditions under which plants grow. It is important to also recognise that the maternal environment has a significant effect on the phenotype of the offspring. These maternal effects represent a transgenerational form of phenotypic p ...
DOI:
10.1016/j.foreco.2020.117909

17. Short Shoot Growth and Reproduction Response to Light Conditions Vary with Order Branching in the Proximal Part of C. atlantica Crown

Author:
Saouab, Fatima-Ezzahra; Bendriss Amraoui, Mohammed
Source:
International journal of forestry research 2020 v.2020
ISSN:
1687-9376
Subject:
Cedrus atlantica; leaves; longevity; plant reproduction; pollen; shade; shoots
Abstract:
... This study compared the effects of shading in individual branch orders 2 and 3 on the needle survival, growth, and reproduction of five categories of short shoots of the proximal part of wild Atlas cedar (Cedrus atlantica (Endl.) G. Manetti ex Carrière). The sun exposure did not affect the number of short shoots in the two branch orders, whereas light compared to shade only stimulates the unbranch ...
DOI:
10.1155/2020/8383010

18. Identification of key genes and transcription factors in ageing Arabidopsis papilla cells by transcriptome analysis

Author:
Ye, Hong; Ren, Fei; Guo, Haoyu; Guo, Liping; Bai, Jianfang; Wang, Yukun
Source:
Plant physiology and biochemistry 2020 v.147 pp. 1-9
ISSN:
0981-9428
Subject:
Arabidopsis; autophagy; data collection; death; energy; growth and development; longevity; models; plant development; plant growth; plant hormones; plant organs; plant reproduction; reporter genes; sequence analysis; signal transduction; transcription factors; transcriptomics
Abstract:
... Programmed cell death (PCD) play essential roles in plant growth and development. Stigmatic papilla cells form an indispensable organ for plant reproduction. The lifetime of papilla cells is tightly controlled, and the developmental PCD (dPCD) process is involved in papilla cell death. Hence, papilla cell death is a good model for studying on PCD process. In this study, the dPCD signal was visuali ...
DOI:
10.1016/j.plaphy.2019.12.008

19. Gazing into the anthosphere: considering how microbes influence floral evolution

Author:
Rebolleda‐Gómez, María; Forrester, Nicole J.; Russell, Avery L.; Wei, Na; Fetters, Andrea M.; Stephens, Jessica D.; Ashman, Tia‐Lynn
Source:
Thenew phytologist 2019 v.224 no.3 pp. 1012-1020
ISSN:
0028-646X
Subject:
Angiospermae; ecological competition; evolution; flowers; genes; microbial communities; microorganisms; phenotype; plant reproduction
Abstract:
... The flower is the hallmark of angiosperms and its evolution is key to their diversification. As knowledge of ecological interactions between flowers and their microbial communities (the anthosphere) expands, it becomes increasingly important to consider the evolutionary impacts of these associations and their potential eco‐evolutionary dynamics. In this Viewpoint we synthesize current knowledge of ...
DOI:
10.1111/nph.16137

20. The dynamic mosaic phenotypes of flowering plants

Author:
Harder, Lawrence D.; Strelin, Marina M.; Clocher, Ilona C.; Kulbaba, Mason W.; Aizen, Marcelo A.
Source:
Thenew phytologist 2019 v.224 no.3 pp. 1021-1034
ISSN:
0028-646X
Subject:
Angiospermae; ecological competition; gene expression; hormonal regulation; natural selection; ontogeny; phenotype; phenotypic selection; plant architecture; plant reproduction
Abstract:
... Ecological interaction and adaptation both depend on phenotypic characteristics. In contrast with the common conception of the ‘adult’ phenotype, plant bodies develop continuously during their lives. Furthermore, the different units (metamers) that comprise plant bodies are not identical copies, but vary extensively within individuals. These characteristics foster recognition of plant phenotypes a ...
DOI:
10.1111/nph.15916

21. Effects of water stress and NaCl stress on different life cycle stages of the cold desert annual Lachnoloma lehmannii in China

Author:
Mamut, Jannathan; Tan, Dunyan; Baskin, Carol C.; Baskin, Jerry M.
Source:
Journal of Arid Land 2019 v.11 no.5 pp. 774-784
ISSN:
1674-6767
Subject:
Brassicaceae; arid lands; basins; cold; environmental factors; fruits; habitats; juveniles; plant establishment; plant reproduction; polyethylene; salt stress; salt tolerance; seed germination; seedlings; seeds; sodium chloride; water potential; water stress; China
Abstract:
... For a plant species to complete its life cycle in arid and saline environments, each stage of the life cycle must be tolerant to the harsh environmental conditions. The aim of the study was to determine the effects of water stress (water potentials of −0.05, −0.16, −0.33, −0.56, −0.85 and −1.21 MPa) and NaCl stress (50, 100, 200, 300, 400, 500 and 600 mmol/L NaCl) on seed germination percentage, s ...
DOI:
10.1007/s40333-019-0015-8

22. The Occurrence of Calcium Oxalate Crystals and Distribution of Arabinogalactan Proteins (AGPs) in Ovary Cells During Fragaria x ananassa (Duch.) Development

Author:
Leszczuk, Agata; Wydrych, Jerzy; Szczuka, Ewa
Source:
Journal of plant growth regulation 2019 v.38 no.3 pp. 1028-1036
ISSN:
0721-7595
Subject:
Fragaria ananassa; arabinogalactan proteins; calcium; calcium oxalate; crystals; embryogenesis; epitopes; females; fluorescent antibody technique; gametophytes; herbivores; immunohistochemistry; monoclonal antibodies; ovules; plant reproduction; pollen tubes; seed coat; transmission electron microscopy
Abstract:
... In this study, the presence of calcium oxalate crystals and distribution of arabinogalactan proteins (AGPs) in the ovary of Fragaria x ananassa (Duchesne) were investigated. The arrangement of the AGP epitopes was analyzed using immunohistochemistry techniques with JIM13, JIM15, and MAC207 monoclonal antibodies. To confirm the immunofluorescence studies, experiments at the subcellular level were p ...
DOI:
10.1007/s00344-018-09912-7

23. Specialist foragers in forest bee communities are small, social or emerge early

Author:
Smith, Colleen; Weinman, Lucia; Gibbs, Jason; Winfree, Rachael
Source:
The journal of animal ecology 2019 v.88 no.8 pp. 1158-1167
ISSN:
0021-8790
Subject:
body size; flowering; flowers; foraging; forests; herbaceous plants; phenology; plant communities; plant reproduction; pollen; pollen loads; pollinators; shrubs; solitary bees; trees; United States
Abstract:
... Individual pollinators that specialize on one plant species within a foraging bout transfer more conspecific and less heterospecific pollen, positively affecting plant reproduction. However, we know much less about pollinator specialization at the scale of a foraging bout compared to specialization by pollinator species. In this study, we measured the diversity of pollen carried by individual bees ...
DOI:
10.1111/1365-2656.13003
CHORUS:
10.1111/1365-2656.13003

24. Peroxisomes in plant reproduction and seed‐related development

Author:
Pan, Ronghui; Liu, Jun; Hu, Jianping
Source:
Journal of integrative plant biology 2019 v.61 no.7 pp. 784-802
ISSN:
1672-9072
Subject:
beta oxidation; biosynthesis; crops; germination; mutants; peroxisomes; plant establishment; plant hormones; plant reproduction; reactive oxygen species; seed development
Abstract:
... Peroxisomes are small multi‐functional organelles essential for plant development and growth. Plant peroxisomes play various physiological roles, including phytohormone biosynthesis, lipid catabolism, reactive oxygen species metabolism and many others. Mutant analysis demonstrated key roles for peroxisomes in plant reproduction, seed development and germination and post‐germinative seedling establ ...
DOI:
10.1111/jipb.12765

25. The individual and combined effects of snowmelt timing and frost exposure on the reproductive success of montane forbs

Author:
Pardee, Gabriella L.; Jensen, Isaac O.; Inouye, David W.; Irwin, Rebecca E.
Source:
Thejournal of ecology 2019 v.107 no.4 pp. 1970-1981
ISSN:
0022-0477
Subject:
climate change; environmental factors; flowering; flowers; forbs; frost; frost injury; fruits; phenology; plant communities; plant reproduction; pollen; pollinators; reproductive success; seed set; snow; snowmelt; spring; summer; wild flowers
Abstract:
... Changes from historic weather patterns have affected the phenology of many organisms world‐wide. Altered phenology can introduce organisms to novel abiotic conditions during growth and modify species interactions, both of which could drive changes in reproduction. We explored how climate change can alter plant reproduction using an experiment in which we manipulated the individual and combined eff ...
DOI:
10.1111/1365-2745.13152

26. Constitutive overexpression of the classical arabinogalactan protein gene BcMF18 in Arabidopsis causes defects in pollen intine morphogenesis

Author:
Lin, Sue; Huang, Li; Miao, Yingjing; Yu, Youjian; Peng, Renyi; Cao, Jiashu
Source:
Plant growth regulation 2019 v.88 no.2 pp. 159-171
ISSN:
0167-6903
Subject:
Arabidopsis; Brassica rapa subsp. oleifera; Western blotting; abortion (plants); arabinogalactan proteins; cellulose; exine; fruits; gene overexpression; genes; male fertility; microspores; morphogenesis; plant reproduction; pollen; proteoglycans; seed set; sexual reproduction; viability
Abstract:
... Arabinogalactan proteins (AGPs) are essential members of hyperglycosylated glycoproteins and are critical for the sexual reproduction of plants. To our knowledge, currently Arabodopsis FLA3 and Brassica BcMF8 are the only two members of AGPs reported concerning pollen intine formation. Previously, the orthologue of AtAGP6 in B. campestris, BcMF18, was isolated and proved to affect microspore devel ...
DOI:
10.1007/s10725-019-00496-0

27. Effect of ionizing radiation on physiological and molecular processes in plants

Author:
Gudkov, Sergey V.; Grinberg, Marina A.; Sukhov, Vladimir; Vodeneev, Vladimir
Source:
Journal of environmental radioactivity 2019 v.202 pp. 8-24
ISSN:
0265-931X
Subject:
biochemical pathways; biosynthesis; calcium; growth and development; hydrogen peroxide; ionizing radiation; irradiation; photosynthesis; plant development; plant growth; plant reproduction; radioactivity
Abstract:
... The study of effects of ionizing radiation (IR) on plants is important in relation to several problems: (I) the existence of zones where background radiation – either natural or technogenic – is increased; (II) the problems of space biology; (III) the use of IR in agricultural selection; (IV) general biological problems related to the fundamental patterns and specifics of the effects of IR on vari ...
DOI:
10.1016/j.jenvrad.2019.02.001

28. Predicted functions, subcellular localizations, and expression patterns of genes encoding secretory proteins associated with pine pollen germination

Author:
Salazar, Arnold M.; Fernando, Danilo D.
Source:
Tree genetics & genomes 2019 v.15 no.3 pp. 39
ISSN:
1614-2942
Subject:
Pinus taeda; biosynthesis; cell walls; clones; complementary DNA; extracellular space; genes; plant reproduction; plasma membrane; pollen; pollen tubes; prediction; proteins; secretion; yeasts
Abstract:
... Pollen germination represents the transition from mature to germinated pollen, which is a critical event in seed plant reproduction. Cell wall–related processes represent many of the cellular activities during this transition but information on the genes involved is limited, particularly in gymnosperms. Yeast secretion trap (YST) is employed in the current study to isolate cDNAs encoding secretory ...
DOI:
10.1007/s11295-019-1344-7

29. Transcriptomic analysis of the maize (Zea mays L.) inbred line B73 response to heat stress at the seedling stage

Author:
Qian, Yexiong; Ren, Qiaoyu; Zhang, Jing; Chen, Liang
Source:
Gene 2019 v.692 pp. 68-78
ISSN:
0378-1119
Subject:
RNA; Zea mays; cDNA libraries; complementary DNA; corn; crops; cultivars; endoplasmic reticulum; genes; heat shock response; heat stress; inbred lines; leaves; plant reproduction; seedlings; temperature; transcriptome; transcriptomics
Abstract:
... High temperature is a common stress, which influences the growth and reproduction of plants. Maize is one of the most important crops all over the world. However, heat stress reduces significantly the yield and quality of maize. Therefore, it is important to illuminate molecular mechanism of maize response to heat stress. To estimate genes related to heat stress, we analyzed the transcriptome of m ...
DOI:
10.1016/j.gene.2018.12.062

30. Interactions between oil-collecting bees and Krameria grandiflora (Krameriaceae) with emphasis on the role of specialized floral traits in the mutual fit

Author:
Carneiro, Liedson Tavares; André, Camila Bárbara Danny Silva; Takahasi, Adriana; Alves-dos-Santos, Isabel
Source:
Arthropod-plant interactions 2019 v.13 no.2 pp. 213-226
ISSN:
1872-8855
Subject:
Centris; Krameria; bees; calyx; corolla; host plants; oils; plant reproduction; pollinators; prediction; seed set
Abstract:
... Oil-producing flowers have evolved specialized traits along with the ability to secrete oil as reward, leading to the expectation of a narrow relationship between floral architecture and oil-collecting behaviours of pollinators. Krameriaceae flowers have a showy calyx and a less conspicuous dimorphic corolla modified into a pair of elaiophores that secrete the oil, and a group of petaloid petals t ...
DOI:
10.1007/s11829-019-09689-w

31. Secondary metabolites from nectar and pollen: a resource for ecological and evolutionary studies

Author:
Palmer‐Young, Evan C.; Farrell, Iain W.; Adler, Lynn S.; Milano, Nelson J.; Egan, Paul A.; Irwin, Rebecca E.; Stevenson, Philip C.
Source:
Ecology 2019 v.100 no.4 pp. e02621
ISSN:
0012-9658
Subject:
alkaloids; chlorogenic acid; cultivars; data collection; dose response; environmental impact; farms; foraging; genotype; glycosides; herbivores; horticulture; intraspecific variation; kaempferol; liquid chromatography; mass spectrometry; metadata; methanol; molecular weight; nectar; pathogens; phylogeny; plant reproduction; pollen; pollinators; quercetin; secondary metabolites; spermidine; terpenoids; wild plants; California; Massachusetts; Vermont
Abstract:
... Floral chemistry mediates plant interactions with herbivores, pathogens, and pollinators. The chemistry of floral nectar and pollen, the primary food rewards for pollinators, can affect both plant reproduction and pollinator health. Although the existence and functional significance of nectar and pollen secondary metabolites has long been known, comprehensive quantitative characterizations of seco ...
DOI:
10.1002/ecy.2621

32. Influence of die-back syndrome on reproductive strategies within Phragmites australis populations

Author:
Cerri, Martina; Ferranti, Francesco; Coppi, Andrea; Foggi, Bruno; Gigante, Daniela; Lastrucci, Lorenzo; Onofri, Andrea; Venanzoni, Roberto; Viciani, Daniele; Reale, Lara
Source:
Plant biosystems 2019 v.153 no.2 pp. 250-256
ISSN:
1724-5575
Subject:
Phragmites australis; dieback; energy; genetic variation; inflorescences; plant reproduction; seed germination; sexual reproduction; viability; wetlands; Europe
Abstract:
... Sexual plant reproduction is a strategy that allows plant populations to increase genetic variability, and consequently to be more efficient in adapting to new environments and to overcome stress conditions. Here, we focus on the reproductive mode of Phragmites australis, an important sub-cosmopolite species that can spread both by clonal propagation and sexual reproduction. In Europe, P. australi ...
DOI:
10.1080/11263504.2018.1473302

33. Genome-wide analysis of the barley non-specific lipid transfer protein gene family

Author:
Zhang, Mengyue; Kim, Yujin; Zong, Jie; Lin, Hong; Dievart, Anne; Li, Huanjun; Zhang, Dabing; Liang, Wanqi
Source:
The crop journal 2019 v.7 no.1 pp. 65-76
ISSN:
2214-5141
Subject:
DNA shuffling; Hordeum vulgare; abiotic stress; barley; biotic stress; exons; genome-wide association study; introns; lipid transfer proteins; phylogeny; plant reproduction; stress response
Abstract:
... Non-specific lipid transfer proteins (nsLTPs) are small, basic proteins that are characterized by an eight-cysteine motif. The biological functions of these proteins have been reported to involve plant reproduction and biotic or abiotic stress response. With the completion of the barley genome sequence, a genome-wide analysis of nsLTPs in barley (Hordeum vulgare L.) (HvLTPs) will be helpful for un ...
DOI:
10.1016/j.cj.2018.07.009

34. Effects of long‐term variation in pollinator abundance and diversity on reproduction of a generalist plant

Author:
Thomson, Diane M.
Source:
Thejournal of ecology 2019 v.107 no.1 pp. 491-502
ISSN:
0022-0477
Subject:
Apis mellifera; Scrophularia; Vespula pensylvanica; analysis of covariance; fruits; mechanistic models; plant reproduction; pollen; pollinators; prediction
Abstract:
... Quantifying the benefits of pollinator abundance and diversity for plant reproduction is a critical challenge, especially given recent pollinator declines. Many studies test for pollen limitation (PL), but huge gaps remain in our understanding of how often and why plants experience PL. Most studies are limited to a few sites or years. Little existing research mechanistically links pollinator visit ...
DOI:
10.1111/1365-2745.13055

35. The role of reactive oxygen species in pollen germination in Picea pungens (blue spruce)

Author:
Maksimov, Nikita; Evmenyeva, Anastasia; Breygina, Maria; Yermakov, Igor
Source:
Plant reproduction 2018 v.31 no.4 pp. 357-365
ISSN:
2194-7953
Subject:
Angiospermae; H-transporting ATP synthase; NAD(P)H oxidase (H2O2-forming); NADP (coenzyme); Picea pungens; amyloplasts; cytosol; hydrogen; hydrogen peroxide; hydroxyl radicals; membrane potential; mitochondria; oxygen; plant reproduction; plasma membrane; pollen; pollen tubes
Abstract:
... KEY MESSAGE : Endogenous ROS, including those produced by NADPH oxidase, are required for spruce pollen germination and regulate membrane potential in pollen tubes; [Formula: see text] and H ₂ O ₂ are unevenly distributed along the tube. Recently, the key role of reactive oxygen species (ROS) in plant reproduction has been decisively demonstrated for angiosperms. This paper is dedicated to the inv ...
DOI:
10.1007/s00497-018-0335-4

36. Climate variation, reproductive frequency and acorn yield in English Oaks

Author:
Hanley, Mick E; Cook, Benjamin I; Fenner, Michael
Source:
Journal of plant ecology 2018 v.12 no.3 pp. 542-549
ISSN:
1752-993X
Subject:
Quercus robur; acorns; climate change; climatic factors; crop year; crops; frost; masting; meteorological data; phenology; plant reproduction; sowing; spring; summer; temperature; trees; England
Abstract:
... Annually variable but synchronous production of large seed crops (‘masting’) is a widespread phenomenon in temperate trees. Mounting concerns about the impacts of anthropogenic climate change (ACC) on plant reproduction gives urgency to our need to understand better the role of climate on tree reproduction, and in particular, mast events. Unlike our understanding of reproductive phenology however, ...
DOI:
10.1093/jpe/rty046

37. Actin Polymerization Mediated by AtFH5 Directs the Polarity Establishment and Vesicle Trafficking for Pollen Germination in Arabidopsis

Author:
Liu, Chang; Zhang, Yi; Ren, Haiyun
Source:
Molecular plant 2018 v.11 no.11 pp. 1389-1399
ISSN:
1674-2052
Subject:
Arabidopsis; actin; microfilaments; physiological transport; plant reproduction; plasma membrane; pollen; pollen germination; polymerization
Abstract:
... The process of pollen germination is crucial for flowering plant reproduction, but the mechanisms through which pollen grains establish polarity and select germination sites are not well understood. In this study, we report that a formin family protein, AtFH5, is localized to the vesicles and rotates ahead of Lifeact-mEGFP-labeled actin filaments during pollen germination. The translocation of AtF ...
DOI:
10.1016/j.molp.2018.09.004

38. Genotypic response of pollen germination in Dura, Pisifera and Tenera oil palm (Elaeis guineensis Jacq.)

Author:
Wang, Yong; Htwe, Yin Min; Ihase, Leonard Osayande; Amin, Muhammad; Shi, Peng; Li, Jing; Xiao, Yong; Cao, Hongxing; Lei, Xintao
Source:
Euphytica 2018 v.214 no.10 pp. 194
ISSN:
0014-2336
Subject:
Arabidopsis; Elaeis guineensis; fruits; gene expression regulation; plant breeding; plant hormones; plant reproduction; pollen; pollen germination; rice; signal transduction; transcription (genetics); unigenes
Abstract:
... Pollen germination is an essential process for plant reproduction. Many studies related to gene expression of pollen were conducted in Arabidopsis and rice. But similar research on oil palm is very limited. Therefore, transcriptional profiling analysis of pollens from three oil palm fruit forms (Dura, Pisifera, Tenera) was performed to investigate the changes in gene expression after pollen germin ...
DOI:
10.1007/s10681-018-2277-1

39. Regional variation in timing, duration, and production of flowers by allergenic ragweed

Author:
Stinson, K. A.; Wheeler, J. A.; Record, S.; Jennings, J. L.
Source:
Plant ecology 2018 v.219 no.9 pp. 1081-1092
ISSN:
1385-0237
Subject:
allergenicity; allometry; climate; ecology; flowering date; plant reproduction; pollen; Massachusetts
Abstract:
... Plant reproduction has broad implications for ecology and society (e.g., production of allergenic pollen), and a number of processes that affect flowering are affected by climate. In this study, we tested for variation in traits related to pollen production by the allergenic plant, common ragweed, across a climate gradient in Massachusetts. We tested whether traits that are easily-measured in the ...
DOI:
10.1007/s11258-018-0860-0

40. Persistence of submerged macrophytes in a drying world: Unravelling the timing and the environmental drivers to produce drought‐resistant propagules

Author:
Calero, Sara; Morellato, Leonor Patrícia C.; Rodrigo, María A.
Source:
Aquatic conservation 2018 v.28 no.4 pp. 894-909
ISSN:
1052-7613
Subject:
Charophyta; autumn; breeding; drought tolerance; drying; ecosystems; global warming; habitats; heat; macroalgae; macrophytes; phenology; plant reproduction; ponds; prediction; rain; rain intensity; salinity; salt stress; seasonal variation; spring; statistics; summer; surface water; Mediterranean region
Abstract:
... Under a warming scenario many permanent inland water bodies in the Mediterranean region have become temporary ones, so the persistence of submerged macrophytes depends on the timely production of drought‐resistant propagules. Phenological research measures the timing of ecological processes and allows the consequences of disturbances such as climate change to be evaluated. Among macrophytes, the c ...
DOI:
10.1002/aqc.2879

41. Transcriptome-wide identification and characterization of the copper and cadmium stress-responsive small RNAs and their targets in Arabidopsis thaliana

Author:
Ma, Xiaoxia; Yu, Dongliang; Shao, Weishan; Xu, Min; Zuo, Ziwei; Wang, Huizhong; Meng, Yijun
Source:
Plant and soil 2018 v.429 no.1-2 pp. 391-405
ISSN:
0032-079X
Subject:
Arabidopsis thaliana; agricultural land; cadmium; copper; crops; food safety; loci; plant reproduction; pollution; ribosomal RNA; stress tolerance; toxicity; transfer RNA
Abstract:
... AIMS: Copper (Cu) and cadmium (Cd) are toxic to plants at high levels. The current situation that many crops are growing on the farmlands with Cu or Cd contamination leads to a big threat to food safety. METHODS: Based on the small RNA (sRNA) sequencing data, hundreds of the sRNAs responsive to excessive Cu or Cd treatment were extracted. Degradome sequencing data enabled us to identify the target ...
DOI:
10.1007/s11104-018-3697-3

42. The putative pectin methylesterase gene, BcMF23a, is required for microspore development and pollen tube growth in Brassica campestris

Author:
Yue, Xiaoyan; Lin, Sue; Yu, Youjian; Huang, Li; Cao, Jiashu
Source:
Plant cell reports 2018 v.37 no.7 pp. 1003-1009
ISSN:
0721-7714
Subject:
Brassica rapa subsp. oleifera; abortion (plants); cytoplasm; exine; gametophytes; genes; male fertility; males; microRNA; pectinesterase; pectins; plant reproduction; pollen; pollen tubes; stigma; transgenic plants
Abstract:
... KEY MESSAGE: BcMF23a contributes to pollen wall development via influencing intine construction, which, in turn, influences pollen tube growth. Pollen wall, the morphological out face of pollen, surrounds male gametophyte and plays an important role in plant reproduction. Pectin methylesterases (PMEs) are involved in pollen wall construction by de-esterifying pectin of the intine. In this study, t ...
DOI:
10.1007/s00299-018-2285-6

43. Potential impact of effects on reproductive attributes induced by herbicides on a plant community

Author:
Reeg, Jette; Heine, Simon; Mihan, Christine; Preuss, Thomas G.; McGee, Sean; Jeltsch, Florian
Source:
Environmental toxicology and chemistry 2018 v.37 no.6 pp. 1707-1722
ISSN:
0730-7268
Subject:
buried seeds; environmental assessment; food safety; grasslands; guidelines; herbicides; models; mortality; plant communities; plant reproduction; plants (botany); population dynamics; risk assessment; seedling emergence; species diversity; vigor
Abstract:
... Current herbicide risk assessment guidelines for nontarget terrestrial plants require testing effects on young, vulnerable life stages (i.e., seedling emergence [and subsequent growth] and vegetative vigor [growth and dry wt]) but not directly on the reproduction of plants. However, the European Food Safety Authority (EFSA) has proposed that effects on reproduction might be considered when evaluat ...
DOI:
10.1002/etc.4122

44. Latitudinal variation in reproductive performance of Leymus chinensis: implications for its response to future climate warming

Author:
Zhang, Bo; Chen, Hai-Jun; Hou, Xiang-Yang; Ma, Hui-Ling; Fang, Qiang-En; Hua, Li-Min; Jiang, Jie; Shi, Shang-Li; Zhang, De-Gang; Zhao, Gui-Qin; Han, Wen-Jun; Oxana, Vishnyakova; Leonid, Ubugunov
Source:
Plant ecology & diversity 2018 v.11 no.3 pp. 363-372
ISSN:
1755-1668
Subject:
Leymus chinensis; climate; environmental factors; florets; global warming; habitats; latitude; models; plant reproduction; reproductive performance; reproductive traits; sexual reproduction; shoots; spikelets; steppes; temperature; viability; China
Abstract:
... Background: Sexual reproduction of plants is likely to be related to climate in their distribution range. Therefore, the investigation of spatial pattern of reproductive traits might provide valuable insights into the potential responses of a plant species to climate change. Aims: We studied the latitudinal pattern of sexual reproduction in Leymus chinensis to uncover the underlying ecological fac ...
DOI:
10.1080/17550874.2018.1517394

45. Characterization and Expression Pattern of a Putative Pectin Methylesterase Gene, BcMF27, in Brassica campestris ssp. chinensis

Author:
Yue, X.Y.; Cao, J.S.; Ma, Z.M.; Liu, T.T.; Xiong, X.P.; Lin, S.E.; Lyu, M.L.; Huang, L.
Source:
Russian journal of plant physiology 2018 v.65 no.3 pp. 364-371
ISSN:
1021-4437
Subject:
Brassica rapa subsp. chinensis; Brassica rapa subsp. oleifera; bioinformatics; cell walls; genes; in situ hybridization; male fertility; onions; pectinesterase; pectins; plant reproduction; pollen; pollen tubes; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction; transmembrane proteins
Abstract:
... Pectin methylesterases (PMEs) play an important role in modifying cell wall. PMEs catalyze the de-esterification of pectin, an important compound of cell wall, to affect fertility in plant reproduction. However, little especially molecular mechanism about pectin methylesterase is studied in recent years despite its importance to reproductive development in flower plant. Here the bioinformatics ana ...
DOI:
10.1134/S1021443718030159

46. Effect of mercury on pollen germination and tube growth in Lilium longiflorum

Author:
Sawidis, Thomas; Baycu, Gülriz; Cevahir–Öz, Gül; Weryszko-Chmielewska, Elzbieta
Source:
Protoplasma 2018 v.255 no.3 pp. 819-828
ISSN:
0033-183X
Subject:
Lilium longiflorum; biodiversity; cell walls; cytosol; mercury; plant reproduction; plasma membrane; pollen; pollen germination; secretory granules
Abstract:
... Pollen development and germination were adversely affected by the presence of mercury, whereas low-concentrations stimulated the whole procedure. Mercury caused morphological anomalies during the tube growth, characterized by irregularly increasing diameters and swelling tips. The main effect was the anomalous cell wall formation at the tip where a substantial number of organelles were found reduc ...
DOI:
10.1007/s00709-017-1192-y

47. Fruiting phenology is linked to rainfall variability in a tropical rain forest

Author:
Dunham, Amy E.; Razafindratsima, Onja H.; Rakotonirina, Paul; Wright, Patricia C.
Source:
Biotropica 2018 v.50 no.3 pp. 396-404
ISSN:
0006-3606
Subject:
climate change; climatic factors; data collection; drought; dry season; forest trees; fruiting; phenology; plant reproduction; rain; tropical rain forests; wet season; wildlife; Madagascar
Abstract:
... As the influence of climate change on tropical forests becomes apparent, more studies are needed to understand how changes in climatic variables such as rainfall are likely to affect tree phenology. Using a twelve‐year dataset (2005–2016), we studied the impact of seasonal rainfall patterns on the fruiting phenology of 69 tree species in the rain forest of southeastern Madagascar. We found that av ...
DOI:
10.1111/btp.12564

48. Maternal components of RNA‐directed DNA methylation are required for seed development in Brassica rapa

Author:
Grover, Jeffrey W.; Kendall, Timmy; Baten, Abdul; Burgess, Diane; Freeling, Michael; King, Graham J.; Mosher, Rebecca A.
Source:
The plant journal 2018 v.94 no.4 pp. 575-582
ISSN:
0960-7412
Subject:
Arabidopsis; Brassica rapa; DNA methylation; fathers; females; flowers; gametophytes; inbreeding; mothers; mutants; mutation; outbreeding; plant reproduction; seed development; seeds; small interfering RNA; somatic cells; tissues; transposons; zygote
Abstract:
... Small RNAs trigger repressive DNA methylation at thousands of transposable elements in a process called RNA‐directed DNA methylation (RdDM). The molecular mechanism of RdDM is well characterized in Arabidopsis, yet the biological function remains unclear, as loss of RdDM in Arabidopsis causes no overt defects, even after generations of inbreeding. It is known that 24 nucleotide Pol IV‐dependent si ...
DOI:
10.1111/tpj.13910

49. Dealing with mutualists and antagonists: Specificity of plant‐mediated interactions between herbivores and flower visitors, and consequences for plant fitness

Author:
Rusman, Quint; Lucas‐Barbosa, Dani; Poelman, Erik H.
Source:
Functional ecology 2018 v.32 no.4 pp. 1022-1035
ISSN:
0269-8463
Subject:
Bombus; Brassica nigra; Brassicogethes aeneus; Heterodera schachtii; Syrphidae; adults; annuals; antagonists; community structure; flowering; herbivores; insect larvae; mastication; mutualism; plant reproduction; plant response; pollinators; reproductive performance; seed set; solitary bees
Abstract:
... Plants need to deal with antagonists, such as herbivores, while maintaining interactions with mutualists, such as pollinators that help plants to maximize their reproductive output. Although many plant species have inducible defences to save metabolic costs of defence in the absence of herbivores, plant responses induced by herbivore attack can have ecological costs. For example, herbivore‐induced ...
DOI:
10.1111/1365-2435.13035

50. Elevation predicts the functional composition of alpine plant communities based on vegetative traits, but not based on floral traits

Author:
Junker, RobertR.; Larue-Kontić, Anne-AmélieC.
Source:
Alpine botany 2018 v.128 no.1 pp. 13-22
ISSN:
1664-2201
Subject:
alpine plants; ecological function; environmental factors; functional diversity; global warming; pastures; plant communities; plant reproduction; plant response; pollinators; topographic slope; Alps region; Austria
Abstract:
... The functional diversity and composition of plant traits within communities are tightly linked to important ecosystem functions and processes. Whereas vegetative traits reflecting adaptations to environmental conditions are commonly assessed in community ecology, floral traits are often neglected despite their importance for the plants’ life cycle. The consideration of floral traits covers importa ...
DOI:
10.1007/s00035-017-0198-6