Results 71 to 80 of about 5,131 (204)

Floral morphology and anther development in diandrous orchid Paphiopedilum purpuratum with their taxonomic implications

open access: yesGuangxi Zhiwu
The taxonomy of Paphiopedilum Pfitz. has been disputed and needs more data for clarification. Floral morphology and anther development in P. purpuratum were observed using microscope and paraffin section. The results were as follows: (1) It was supported
ZHU Yong   +5 more
doaj   +1 more source

高温がダイズの開花・結莢におよぼす影響 [PDF]

open access: yes, 2006
Plants of soybean(cv.Enrei) were grown in pots(1/5000a) in a viny house. Temperature treatment was conducter for 10 days from the beginning of the flowering period(BFP) in the growth chambers under artificial light controlled at day/night air ...
Kitano, Machiko   +2 more
core  

Actin filaments drive spindle positioning in Arabidopsis meiosis II

open access: yes
New Phytologist, Volume 248, Issue 5, Page 2187-2191, December 2025.
Yingrui Ma, Hua Jiang
wiley   +1 more source

Why are the inner and outer sides of many flower petals differently coloured?

open access: yesPlant Biology, Volume 26, Issue 5, Page 665-674, August 2024.
Evolutionary hypotheses aimed at explaining why inner and outer sides of petals are often differently coloured. Abstract The flower perianth has various, non‐mutually exclusive functions, such as visual signalling to pollinators and protecting the reproductive organs from the elements and from florivores, but how different perianth structures and their
X.‐Q. Fan   +6 more
wiley   +1 more source

Aggregations of organelles in meiotic cells of higher plants

open access: yesActa Societatis Botanicorum Poloniae, 2014
During early prophase I in microsporocytes and sporocytes of various plants all mitochondria and plastids aggregate in a group, where some plastids seem to undergo division. This group desintegrates by middle prophase I.
Bohdan Rodkiewicz, Ewa Duda
doaj   +1 more source

Variations in Quercus sp. Pollen Seasons (1996--2011) in Poznań, Poland, in Relation to Meteorological Parameters [PDF]

open access: yes, 2014
The aim of this study is to supply detailed information about oak (Quercus sp.) pollen seasons in Pozna\', Poland, based on a 16-year aerobiological data series (1996--2011).
Grewling, Ł.   +2 more
core   +1 more source

The male germ unit association is independently regulated of GUM in Arabidopsis thaliana

open access: yesPlant Direct, Volume 8, Issue 7, July 2024.
Abstract Cytoplasmic projections (CPs) formed by the generative and sperm cells link the male gametes with the vegetative cell (VC) nucleus, which are required to build the male germ unit (MGU) assemblage in the angiosperm pollen grain. As molecular and genetic controls underlying CP development and formation of the MGU are unknown, it was hypothesized
Abdur Rauf   +9 more
wiley   +1 more source

Starmaya: The first arabica F1 coffee hybrid produced using genetic male sterility [PDF]

open access: yes, 2019
In the present paper, we evaluated the implementation of a seed production system based on the exploitation of male sterility on coffee. We studied specifically the combination between CIR-SM01 and Marsellesa® (a Sarchimor line), which provides a hybrid ...
Alpizar, Edgardo   +11 more
core   +1 more source

Molecular-cytogenetic analysis of triticale and wheat lines with introgressions of the tribe Triticeae species genetic material

open access: yesВавиловский журнал генетики и селекции, 2015
There are a number of problems in selection of cultivated cereals associated with the requirements to create forms with resistance to diseases, pests and unfavorable environmental conditions.
O. A. Orlovskaya   +5 more
doaj   +1 more source

Perspectives on deciphering mechanisms underlying plant heat stress response and thermotolerance [PDF]

open access: yes, 2013
Global warming is a major threat for agriculture and food safety and in many cases the negative effects are already apparent. The current challenge of basic and applied plant science is to decipher the molecular mechanisms of heat stress response (HSR ...
Bokszczanin, Kamila L.   +1 more
core  

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