Results 11 to 20 of about 4,733 (136)

Ethylene Activates the EIN2-EIN3/EIL1 Signaling Pathway in Tapetum and Disturbs Anther Development in Arabidopsis

open access: yesCells, 2022
Ethylene was previously reported to repress stamen development in both cucumber and Arabidopsis. Here, we performed a detailed analysis of the effect of ethylene on anther development.
Ben-Shun Zhu   +8 more
doaj   +1 more source

Abnormal Programmed Cell Death of Tapetum Leads to the Pollen Abortion of Lycium barbarum Linnaeus

open access: yesHorticulturae, 2022
Programmed cell death (PCD) in tapetum provides nutrients for pollen development. Once this process becomes abnormal, the pollen will be aborted, and sterile lines will be formed. Lycium barbarum L.
Xin Zhang   +13 more
doaj   +1 more source

Integrated cytological and transcriptomic analysis reveals insights into pollen fertility in newly synthetic Brassica allohexaploids

open access: yesFrontiers in Plant Science, 2023
Trigenomic Brassica allohexaploids (AABBCC, 2n = 6x = 54) have great potential in oilseed breeding and genetic diversity. However, Brassica allohexaploids do not exist naturally, and the underlying mechanism regulating pollen fertility in artificially ...
Zhaoran Tian   +11 more
doaj   +1 more source

The SPL8‐YAB3/TCP19 module integrates transcriptional and protein–protein regulatory mechanisms to orchestrate anther development in Arabidopsis [PDF]

open access: yesPlant J
SUMMARY SQUAMOSA PROMOTER BINDING PROTEIN‐LIKE 8 (SPL8) is a plant‐specific transcription factor essential for anther development, but its regulatory partners and downstream mechanisms remain largely unknown. We identified 26 SPL8‐interacting transcription factors by yeast two‐hybrid screening and bimolecular fluorescence complementation (BiFC) assays,
Li T, Zhang L, Xing S.
europepmc   +2 more sources

Cytological and Molecular Mechanism of Low Pollen Grain Viability in a Germplasm Line of Double Lotus

open access: yesPlants, 2023
Self-fertilization rate is an essential index of lotus reproductive system development, and pollen activity is a key factor affecting lotus seed setting rate. Based on cytology and molecular biology, this study addresses the main reasons for the low self-
Guangyang Liu   +8 more
doaj   +1 more source

Fine regulation of ARF17 for anther development and pollen formation

open access: yesBMC Plant Biology, 2017
Background In Arabidopsis, the tapetum and microsporocytes are critical for pollen formation. Previous studies have shown that ARF17 is expressed in microsporocytes and tetrads and directly regulates tetrad wall synthesis for pollen formation.
Bo Wang   +8 more
doaj   +1 more source

A Cytological Study of Anther and Pollen Development in Chinquapin (Castanea henryi)

open access: yesHortScience, 2020
The normal development of anthers and the formation of functional pollen are the prerequisites for successful pollination and fertilization. In this study, we observed dynamic changes in inflorescence and anther development in the chinquapin (Castanea ...
Weiping Zhong   +5 more
doaj   +1 more source

Gene Regulatory Network for Tapetum Development in Arabidopsis thaliana

open access: yesFrontiers in Plant Science, 2017
In flowering plants, male gametophyte development occurs in the anther. Tapetum, the innermost of the four anther somatic layers, surrounds the developing reproductive cells to provide materials for pollen development.
Dan-Dan Li   +3 more
doaj   +1 more source

Anther Ontogeny and Microsporogenesis in <i>Helianthus annuus</i> L. (Compositae)

open access: yesNotulae Scientia Biologicae, 2015
In this study, anther ontogeny and microsporogenesis were analysed in Helianthus annuus L. The undifferentiated anther is ovoid-shaped and the differentiation starts with the appearance of archesporial cells. Mature anthers are tetrasporangiate.
Aslihan ÇETİNBAŞ, Meral ÜNAL
doaj   +3 more sources

Occurrence of parietal and invasive tapetum in Dyckia strehliana (Bromeliaceae): first report for the Family [PDF]

open access: yesRodriguésia
Tapetal tissue plays essential roles in the formation of generative cells, as it is related to their nutrition and development in anthers. Among the few species of Bromeliaceae for which tapetal tissue has been describe, most have a secretory tapetum and
Roberta Maidana da Silva   +1 more
doaj   +1 more source

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