Results 11 to 20 of about 169,832 (144)

High-temperature stress in crops: male sterility, yield loss and potential remedy approaches. [PDF]

Plant Biotechnol J, 2023
Summary Global food security is one of the utmost essential challenges in the 21st century in providing enough food for the growing population while coping with the already stressed environment. High temperature (HT) is one of the main factors affecting plant growth, development and reproduction and causes male sterility in plants. In male reproductive
Khan AH, Min L, Ma Y, Zeeshan M, Jin S, Zhang X.   +5 more
europepmc   +2 more sources

Climate adaptation and functional constraints drive pollen evolution in Apiales. [PDF]

New Phytol
Summary Pollen grains exhibit remarkable morphological diversity, shaped by selective pressures from environmental factors and mechanical constraints. Here, we investigate macroevolutionary patterns of pollen morphology in Apiales, an order of angiosperms with significant ecological and geographical diversity, to disentangle the roles of climate and ...
Baczyński J, Spalik K, Burke JM, Banasiak Ł.   +3 more
europepmc   +2 more sources

<i>Hagenia</i> from the early Miocene of Ethiopia: Evidence for possible niche evolution? [PDF]

Ecol Evol, 2021
This study shows that modern counterparts of fossil taxa might not be ideal to infer ecological or environmental traits, such as pollination, elevation, temperature, and precipitation on fossil plants or their assemblages. It is clear that since the origin of Hagenia its ecological requirements have changed significantly.
Grímsson F, Ulrich S, Coiro M, Graham SA, Jacobs BF, Currano ED, Xafis A, Zetter R.   +7 more
europepmc   +2 more sources

52 million years old Eucalyptus flower sheds more than pollen grains. [PDF]

Am J Bot, 2020
PREMISE Fossils provide fundamental evidence of the evolutionary processes that crafted today’s biodiversity and consequently for understanding life on Earth. We report the finding of Myrtaceidites eucalyptoides pollen grains preserved within the anthers of a 52‐million‐year‐old Eucalyptus flower collected at Laguna del Hunco locality of Argentinean ...
Zamaloa MC, Gandolfo MA, Nixon KC.
europepmc   +2 more sources

24 million years of pollination interaction between European linden flowers and bumble bees. [PDF]

New Phytol
Summary Pollination is the most common insect–plant mutualism, binding them in a co‐evolutionary framework. Historic evidence of this interaction can be partly inferred from time‐calibrated molecular phylogenies of plant and insect lineages or directly from fossils.
Geier C, Engel MS, Bouchal JM, Ulrich S, Schönenberger J, Uhl D, Wappler T, Wedmann S, Boudet L, Grímsson F.   +9 more
europepmc   +2 more sources

Natural variation of MS2 confers male fertility and drives hybrid breeding in soybean

Plant Biotechnology Journal, Volume 21, Issue 11, Page 2322-2332, November 2023., 2023
Summary A complete and genetically stable male sterile line with high outcrossing rate is a prerequisite for the development of commercial hybrid soybean. It was reported in the last century that the soybean male sterile ms2 mutant has the highest record with seed set.
Xiaolong Fang, Xiangchi Feng, Xiaoyuan Sun, Xiangdong Yang, Qing Li, Xulei Yang, Jie Xu, Minghui Zhou, Chunjing Lin, Yi Sui, Limei Zhao, Baohui Liu, Fanjiang Kong, Chunbao Zhang, Meina Li   +14 more
wiley   +1 more source

Mutation of glucose‐methanol‐choline oxidoreductase leads to thermosensitive genic male sterility in rice and Arabidopsis

Plant Biotechnology Journal, Volume 20, Issue 10, Page 2023-2035, October 2022., 2022
Summary Thermosensitive genic male sterility (TGMS) lines serve as the major genetic resource for two‐line hybrid breeding in rice. However, their unstable sterility under occasional low temperatures in summer highly limits their application. In this study, we identified a novel rice TGMS line, ostms18, of cultivar ZH11 (Oryza sativa ssp.
Yan‐Fei Zhang, Yue‐Ling Li, Xiang Zhong, Jun‐Jie Wang, Lei Zhou, Yu Han, Dan‐Dan Li, Na Wang, Xue‐Hui Huang, Jun Zhu, Zhong‐Nan Yang   +10 more
wiley   +1 more source

Degradation of de‐esterified pctin/homogalacturonan by the polygalacturonase GhNSP is necessary for pollen exine formation and male fertility in cotton

Plant Biotechnology Journal, Volume 20, Issue 6, Page 1054-1068, June 2022., 2022
Summary The pollen wall exine provides a protective layer for the male gametophyte and is largely composed of sporopollenin, which comprises fatty acid derivatives and phenolics. However, the biochemical nature of the external exine is poorly understood.
Yuanlong Wu, Xiao Li, Yanlong Li, Huanhuan Ma, Huabin Chi, Yizan Ma, Jing Yang, Sai Xie, Rui Zhang, Linying Liu, Xiaojun Su, Rongjie Lv, Aamir Hamid Khan, Jie Kong, Xiaoping Guo, Keith Lindsey, Ling Min, Xianlong Zhang   +17 more
wiley   +1 more source

Why does pollen morphology vary? Evolutionary dynamics and morphospace occupation in the largest angiosperm order (Asterales)

New Phytologist, Volume 234, Issue 3, Page 1075-1087, May 2022., 2022
Summary Morphological diversity (disparity) is a key component of biodiversity and increasingly a focus of botanical research. Despite the wide range of morphologies represented by pollen grains, to date there are few studies focused on the controls on pollen disparity and morphospace occupation, and fewer still considering these parameters in a ...
Phillip E. Jardine, Luis Palazzesi, M. Cristina Tellería, Viviana D. Barreda   +3 more
wiley   +1 more source

The Class III peroxidase gene OsPrx30, transcriptionally modulated by the AT‐hook protein OsATH1, mediates rice bacterial blight‐induced ROS accumulation

Journal of Integrative Plant Biology, Volume 63, Issue 2, Page 393-408, February 2021., 2021
The rice AT‐hook transcription factor OsATH1 epigenetically modulates the expression of the peroxidase gene OsPrx30, which functions in the rice bacterial blight‐induced reactive oxygen species signaling pathway. Abstract Class III peroxidases (CIII Prxs) play critical roles in plant immunity by scavenging reactive oxygen species (ROS).
Hao Liu, Shuangyu Dong, Ming Li, Fengwei Gu, Guili Yang, Tao Guo, Zhiqiang Chen, Jiafeng Wang   +7 more
wiley   +1 more source