scholarly journals Water stress resilient cereal crops: lessons from wild relatives

2022 ◽  
Author(s):  
Justine M Toulotte ◽  
Chrysoula K Pantazopoulou ◽  
Maria Angelica Sanclemente ◽  
Laurentius ACJ Voesenek ◽  
Rashmi Sasidharan
Keyword(s):  
Water Stress ◽  
Wild Relatives ◽  
Cereal Crops

Anin situapproach to the conservation of temperate cereal crop wild relatives in the Mediterranean Basin and Asian centre of diversity

2019 ◽  
Vol 17 (2) ◽  
pp. 185-195 ◽  
Author(s):  
Jade Phillips ◽  
Katherine Whitehouse ◽  
Nigel Maxted
Keyword(s):  
Genetic Diversity ◽  
Protected Areas ◽  
Mediterranean Basin ◽  
Crop Wild Relatives ◽  
Wild Relatives ◽  
Cereal Crops ◽  
Centre Of Diversity ◽  
The Mediterranean ◽  
The Mediterranean Basin

AbstractCereal crops are one of the most widely consumed and most valuable crops for humankind. The species have been domesticated for over 10,000 years and as such have lost much of the genetic diversity that is present within their wild relatives. Future breeding efforts will require the use of genetic diversity from crop wild relatives (CWRs) to help improve our cereal crops. This study aims to identify anin situconservation network within the Mediterranean Basin and west Asia for the four cereal crops, barley (HordeumL.), oat (AvenaL.), rye (SecaleL.) and wheat (AegilopsL.,AmblyopyrumL.,TriticumL.). This region is a centre of diversity for these taxa and an area of potentially high genetic diversity, which if left unprotected will not be available for plant breeders to utilize in the future. Presence point data for a total of 90 taxa were collected from GBIF and resulted in 76,343 individual presence points across the 44 countries in the study region. Geographic Information System (GIS) software was used to identify potentialin situreserve networks per crop genepool and for all crops combined. Results indicate a network of 10 locations across the region which would protect over 80% of the taxa. The number one priority reserve is found within the Fertile Crescent region on the border of Israel, Syria and Jordan. This proposed reserve location contains 93 currently protected areas (i.e. National Parks) and as such, it may only be necessary to alter management plans to effectively protect CWR populations. For taxa not found within protected areasex situconservation may be more appropriate and should be implemented as a backup to thein situreserve network.

scholarly journals Plant Water Stress Affects Interactions Between an Invasive and a Naturalized Aphid Species on Cereal Crops

2017 ◽  
Vol 46 (3) ◽  
pp. 609-616 ◽  
Author(s):  
N. E. Foote ◽  
T. S. Davis ◽  
D. W. Crowder ◽  
N. A. Bosque-Pérez ◽  
S. D. Eigenbrode
Keyword(s):  
Water Stress ◽  
Aphid Species ◽  
Cereal Crops ◽  
Plant Water ◽  
Plant Water Stress

Fluorescence, PRI and canopy temperature for water stress detection in cereal crops

2014 ◽  
Vol 30 ◽  
pp. 167-178 ◽  
Author(s):  
C. Panigada ◽  
M. Rossini ◽  
M. Meroni ◽  
C. Cilia ◽  
L. Busetto ◽  
...  
Keyword(s):  
Water Stress ◽  
Canopy Temperature ◽  
Cereal Crops ◽  
Stress Detection

Wild relatives of wheat: Aegilops–Triticum accessions disclose differential antioxidative and physiological responses to water stress

2018 ◽  
Vol 40 (5) ◽  
Author(s):  
Jafar Ahmadi ◽  
Alireza Pour-Aboughadareh ◽  
Sedigheh Fabriki Ourang ◽  
Ali Ashraf Mehrabi ◽  
Kadambot H. M. Siddique
Keyword(s):  
Water Stress ◽  
Physiological Responses ◽  
Wild Relatives

Growth and antioxidant responses triggered by water stress in wild relatives of eggplant

2022 ◽  
Vol 293 ◽  
pp. 110685
Author(s):  
Mariola Plazas ◽  
Sara González-Orenga ◽  
Huu Trong Nguyen ◽  
Irina M. Morar ◽  
Ana Fita ◽  
...  
Keyword(s):  
Water Stress ◽  
Wild Relatives ◽  
Antioxidant Responses

India: local and introduced crops

1976 ◽  
Vol 275 (936) ◽  
pp. 129-141 ◽  
Keyword(s):  
Sexual Reproduction ◽  
Native Species ◽  
Genetic Change ◽  
Wild Relatives ◽  
Cereal Crops ◽  
Parent Species ◽  
African Origin ◽  
Asian Origin ◽  
Harappan Civilization ◽  
Northwest India

The oldest agriculture so far demonstrated archaeologically in India is that of the Harappan civilization, beginning in approximately 2500 B.C.; the Harappans had an advanced farming technology and a range of crops. The earliest archaeological records are of species of west Asian origin, found in northwest India and Pakistan; locally domesticated species followed and cereal crops of African origin occurred remarkably early. Southeast Asian crops leave no archaeological evidence, but there are biological indications of substantial antiquity in India; crops of American origin are recent acquisitions. Indian crops provide material for a study of the rate of genetic change under domestication. Native species, long domesticated and in contact with their wild relatives, are compared with domesticates introduced from outside, and separated from their parent species at different points in time. Seed propagated species are compared with vegetatively propagated crops and, among the latter, evolutionary change is demonstrated in spite of greatly restricted sexual reproduction.

Metabolic signalling and the partitioning of resources in plant storage organs

1999 ◽  
Vol 133 (3) ◽  
pp. 243-249 ◽  
Author(s):  
NIGEL G. HALFORD
Keyword(s):  
Dry Weight ◽  
Wild Relatives ◽  
Crop Plants ◽  
Wild Plants ◽  
Young Plant ◽  
Carbon And Nitrogen ◽  
Cultivated Potato ◽  
Metabolic Signalling ◽  
Storage Organs ◽  
Plant Storage

The most important harvested organs of crop plants, such as seeds, tubers and fruits, are often described as assimilate sinks. They play little or no part in the fixation of carbon through the production of sugars through photosynthesis, or in the uptake of nitrogen and sulphur, but import these assimilated resources to support metabolism and to store them in the form of starch, oils and proteins. Wild plants store resources in seeds and tubers to later support an emergent young plant. Cultivated crops are effectively storing resources to provide us with food and many have been bred to accumulate much more than would be required otherwise. For example, approximately 80% of a cultivated potato plant's dry weight is contained in its tubers, ten times the proportion in the tubers of its wild relatives (Inoue & Tanaka 1978). Cultivation and breeding has brought about a shift in the partitioning of carbon and nitrogen assimilate between the organs of the plant.

Biscogniauxia (Hypoxylon) Canker or Dieback in Trees

EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
Claudia Paez ◽  
Jason A. Smith
Keyword(s):  
Water Stress ◽  
Tree Species ◽  
Soil Compaction ◽  
Urban Areas ◽  
Root Disease ◽  
Poor Health ◽  
Green Spaces ◽  
Opportunistic Pathogens ◽  
Wide Range ◽  
Quercus Spp

Biscogniauxia canker or dieback (formerly called Hypoxylon canker or dieback) is a common contributor to poor health and decay in a wide range of tree species (Balbalian & Henn 2014). This disease is caused by several species of fungi in the genus Biscogniauxia (formerly Hypoxylon). B. atropunctata or B. mediterranea are usually the species found on Quercus spp. and other hosts in Florida, affecting trees growing in many different habitats, such as forests, parks, green spaces and urban areas (McBride & Appel, 2009).  Typically, species of Biscogniauxia are opportunistic pathogens that do not affect healthy and vigorous trees; some species are more virulent than others. However, once they infect trees under stress (water stress, root disease, soil compaction, construction damage etc.) they can quickly colonize the host. Once a tree is infected and fruiting structures of the fungus are evident, the tree is not likely to survive especially if the infection is in the tree's trunk (Anderson et al., 1995).

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