Results 71 to 80 of about 12,959 (221)

Pollen grain of barley (Hordeum vulgare L.) - pattern of development

Acta Societatis Botanicorum Poloniae, 2014
Pollen development in barley follows the general pattern established for other species of Poaceae: 1) microspore division occurs at the vacuolate microspore stage with polarly located nucleus; 2) microspore mitosis is immediately followed by phragmoplast
Maria Charzyńska, Nella Lenart
doaj   +1 more source

Analysis of wheat microspore embryogenesis induction by transcriptome and small RNA sequencing using the highly responsive cultivar “Svilena”

BMC Plant Biology, 2016
Microspore embryogenesis describes a stress-induced reprogramming of immature male plant gametophytes to develop into embryo-like structures, which can be regenerated into doubled haploid plants after whole genome reduplication. This mechanism is of high
Felix Seifert, Sandra Bössow, J. Kumlehn, Heike Gnad, Stefan Scholten   +4 more
semanticscholar   +1 more source

Ecological Adaptation Mechanisms Underlying Successful Plant Reproduction

Advanced Science, Volume 13, Issue 38, 9 July 2026.
During floral induction, various environmental and endogenous signals converge to regulate the florigen protein, which is transported from leaves to the SAM to initiate flowering. Within the SAM, a complex network of receptor kinases and small peptides orchestrates floral development with high spatiotemporal precision.
Hang Zhao, Shenghui Huo, Yue Xing, Shuxin Zhang, Guilin Li, Yihui Liu, Chongyang Jin, Fuguang Li, Xiaoyang Ge   +8 more
wiley   +1 more source

The Influence of pH on Microspore Embryogenesis of White Cabbage (<i>Brassica oleracea</i> L.)

Notulae Scientia Biologicae, 2013
In vitro microspore culture is one of the top techniques utilised now-a-days for the obtaining of double haploid plants in many plant species, including Brassica. The pH of the medium is a critical factor for the success of In vitro microspore culture as
Tina Oana CRISTEA
doaj   +3 more sources

Isoetes ×atruensis (Isoetaceae – Lycopodiopsida), a new interspecific sterile hybrid from Rajasthan of Western India

Nordic Journal of Botany, Volume 2026, Issue 7, July 2026.
Isoetes ×atruensis hyb. nov. is shown to be a triploid (2n = 3× = 33 + 1) sterile interspecific hybrid between diploid (2n = 2× = 22 + 1) I. coromandelina and tetraploid (2n = 4× = 44 + 1) I. rajasthanensis. It has been found in two locations in Rajasthan, India.
Sarvesh Kumar Singh, Daniel F. Brunton, Pradeep Kumar Shukla, Santosh Kumar Shukla, Nawal Kishore Dubey   +4 more
wiley   +1 more source

Comparison of methods for obtaining doubled haploids of carrot

Acta Societatis Botanicorum Poloniae, 2017
Doubled haploid lines of carrot can be obtained through androgenesis in anther cultures and in isolated microspore cultures. The two methods were compared using three carrot cultivars (‘Kazan F1’, ‘Feria F1’, and ‘Narbonne F1’) at the androgenesis ...
Waldemar Kiszczak, Urszula Kowalska, Agata Kapuścińska, Maria Burian, Krystyna Górecka   +4 more
doaj   +1 more source

Pentatricopeptide repeat proteins in crops: Advances in functional mechanisms and breeding applications

Journal of Integrative Plant Biology, Volume 68, Issue 7, Page 1973-2000, July 2026.
Pentatricopeptide repeat proteins coordinate nucleus‐organelle communication by modulating RNA metabolism within chloroplasts and mitochondria. This review highlights how they control critical processes like photosynthesis, seed development, fertility restoration, and stress survival in crops, and explores their potential as programmable tools for RNA ...
Mingming Wu, Maohong Cai, Rongrong Zhai, Jing Ye, Guofu Zhu, Faming Yu, Shenghai Ye, Xiaoming Zhang   +7 more
wiley   +1 more source

Cytological development, calcium dynamic and metabolite profile of stress-induced tobacco (Nicotiana tabacum L.) microspore under calcium chloride treatment [PDF]

Brazilian Journal of Biology
Exogenous calcium is pivotal in activating microspore embryogenesis via calcium signaling. Altering the external calcium levels in the medium has been documented to impact the success rate of microspore embryogenesis initiation.
C. T. Rahmawati, D. K. Wahyuni, H. Purnobasuki, N. K. K. Ikram, S. Subramaniam, S. P. O. Werbrouck, Hamidah   +6 more
doaj   +1 more source

BnPME is progressively induced after microspore reprogramming to embryogenesis, correlating with pectin de-esterification and cell differentiation in Brassica napus

BMC Plant Biology, 2016
Pectins are one of the main components of plant cell walls. They are secreted to the wall as highly methylesterified forms that can be de-esterified by pectin methylesterases (PMEs).
María-Teresa Solís, Eduardo Berenguer, M. Risueño, P. Testillano   +3 more
semanticscholar   +1 more source

HSP101‐encoding NEO‐TETRAPLOID RICE FERTILITY GENE 1 regulates tapetum development through interaction with SAPK2 in polyploid rice

Journal of Integrative Plant Biology, Volume 68, Issue 7, Page 2316-2330, July 2026.
In neo‐tetraploid rice, the NTRF1–SAPK2 heat shock protein–kinase module coordinates abscisic acid signaling with reactive oxygen species homeostasis to ensure timely tapetal programmed cell death and subsequent pollen maturation, providing a resource for the genetic improvement of polyploid rice.
Lichong Cao, Weicong Huang, Hang Yu, Sanglin Liu, Jianmin Yin, Zijun Lu, Jinwen Wu, Xiangdong Liu   +7 more
wiley   +1 more source