Results 141 to 150 of about 27,918 (288)
Yuzhoua juvenilis: Another Angiosperm Seen in the Early Permian?
Life“How old are angiosperms” is a frequently asked but still unanswered question. Although the underlying reason includes a lack of consensus on the criterion for fossil angiosperms, limited fossil finds, and other factors, the final answer to the question ...
Xin Wang, Yinggang Lei, Qiang Fu
doaj +1 more source
Total polysaccharide content of developing pollen in two angiosperm species. [PDF]
, 1995 Total polysaccharide content of developing pollen in two angiosperm species has been ...
PACINI E., VIEGI, LUCIA
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Chicken or egg? The evolutionary riddle of CMS and Rf in plants
Journal of Integrative Plant Biology, EarlyView.Cytoplasmic male sterility (CMS) reduces pollen fertility and nuclear Rf genes restore fertility. This Commentary explores support for the “arms race” and “pre‐adaptation” models for CMS–Rf co‐evolution. CMS and Rf interact dynamically, influencing plant reproduction, stress tolerance, and hybrid seed production, highlighting co‐evolutionary processes ...
Peilin Wang +4 more
wiley +1 more source
The Effect of Fire on Multiple Tree Species in the Eastern Deciduous Forest
FireFire is a disturbance that serves to maintain the diverse mosaic of vegetation in the Eastern Deciduous Forest. However, our ability to reconstruct fire occurrence from hardwood tree scars still lags far behind our expertise in reconstructing fire ...
James H. Speer +2 more
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Auxin response and PIN‐mediated transport in chlorophyte algae
Journal of Integrative Plant Biology, EarlyView.Like multicellular plants, green algae respond to auxin and move it across their cells. However, their PIN‐like proteins do not act like plant auxin exporters, suggesting that basic auxin transport evolved early and specialized directional transport appeared later in plant evolution.
Adrijana Smoljan +11 more
wiley +1 more source
Plant CommunicationsConserved non-coding sequences (CNSs) are integral elements of transcriptional regulation. Transcriptional tuning of PLETHORA (PLT) genes that encode master regulators of plant development is vital for embryogenesis and meristematic function.
Merijn Kerstens +9 more
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Journal of Integrative Plant Biology, EarlyView.This review summarizes the discovery, biosynthesis, and transport of strigolactone, and the D14‐D3/MAX2‐D53/SMXLs signaling module. It highlights diverse roles of strigolactone in plant architecture, stress responses, and crop breeding, including species‐specific functions, hormonal crosstalk, and agricultural applications.
Qingliang Hu, Jiayang Li, Bing Wang
wiley +1 more source
X-ray effect to the LM morphology of some gymnosperm and angiosperm pollen grains [PDF]
, 1996 Pollen grains of the following species were the subject of our investigations: 1. Inaperturate gymnosperm (Juniperus virginiana) and angiosperm (Populus canadensis), 2. Monosulcate angiosperm (Magnolia kobus), 3.
Kedves Miklós, Ungvári Erika
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Orchid genome evolution and trait innovation
Journal of Integrative Plant Biology, EarlyView.Orchids became one of the world's most diverse plant groups through genome‐driven innovations, unique relationships with fungi and pollinators, and remarkable adaptability. This review explains the origins of orchids and the evolution of their distinctive life forms, flowers, and ecological strategies and highlights promising directions for future ...
Meng‐Yao Zeng +8 more
wiley +1 more source
The Unexpected Discovery of Paleocene? Coals in Outcrops Thought to Be Cambrian, Al Huqf, Oman
Journal of Petroleum Geology, EarlyView.ABSTRACT Two brown organic deposits were encountered whilst investigating kaolinitic claystones thought to occur at the base of a Cambrian formation at outcrop. The age of these organic deposits is probably Paleocene from palynology. Organic petrography shows that they are subbituminous coals with some oil source potential.
Mohammed H. Al Kindi +4 more
wiley +1 more source